{"id":22839,"date":"2025-12-05T15:11:10","date_gmt":"2025-12-05T07:11:10","guid":{"rendered":"https:\/\/alllandpipes.com\/?p=22839"},"modified":"2025-12-05T15:26:10","modified_gmt":"2025-12-05T07:26:10","slug":"what-is-jis-g3444-guide-to-carbon-steel-structural-tubing","status":"publish","type":"post","link":"https:\/\/alllandpipes.com\/ar\/blogs\/what-is-jis-g3444-guide-to-carbon-steel-structural-tubing.html","title":{"rendered":"\u0645\u0627 \u0647\u0648 JIS G3444\u061f \u062f\u0644\u064a\u0644 \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"22839\" class=\"elementor elementor-22839\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7cf54ae2 e-flex e-con-boxed e-con e-parent\" data-id=\"7cf54ae2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f3687c9 elementor-widget elementor-widget-text-editor\" data-id=\"3f3687c9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<h2><span style=\"color: #046cb5;\"><strong>\u0645\u0642\u062f\u0645\u0629<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u0641\u064a \u0628\u0646\u0627\u0621 \u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u062f\u0646\u064a\u0629\u060c \u0648\u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u0639\u0645\u0627\u0631\u064a\u0629 \u0648\u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u0634\u0627\u0647\u0642\u0629\u060c \u0641\u0625\u0646 \u0645\u0639\u064a\u0627\u0631 JIS G3444 \u0647\u0648 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0623\u0643\u062b\u0631 \u0634\u064a\u0648\u0639\u064b\u0627 \u0648\u0627\u0644\u0623\u0643\u062b\u0631 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u064b\u0627 \u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a \u0641\u064a \u0622\u0633\u064a\u0627 \u0648\u0641\u064a \u0627\u0644\u0639\u0627\u0644\u0645 \u0623\u064a\u0636\u064b\u0627. \u0648\u0644\u0643\u0646 \u0645\u0646 \u0627\u0644\u0645\u062b\u064a\u0631 \u0644\u0644\u062f\u0647\u0634\u0629 \u0623\u0646 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0627\u0644\u0639\u0627\u0644\u0645\u064a\u064a\u0646 \u0644\u0645 \u064a\u0633\u0645\u0639\u0648\u0627 \u0623\u0628\u062f\u064b\u0627 \u0628\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0635\u0646\u064a\u0641 \u0627\u0644\u0641\u0631\u064a\u062f \u0627\u0644\u063a\u0631\u064a\u0628 \u201cSTK\u201d\u060c \u0628\u0644 \u0625\u0646 \u0627\u0644\u0643\u062b\u064a\u0631\u064a\u0646 \u064a\u062e\u0637\u0626\u0648\u0646 \u0641\u064a \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647 \u0645\u0642\u0627\u0631\u0646\u0629 \u0628\u0645\u0639\u0627\u064a\u064a\u0631 ASTM \u0623\u0648 API \u0627\u0644\u062a\u064a \u062a\u062d\u0645\u0644 \u0623\u0633\u0645\u0627\u0621 \u0623\u062e\u0631\u0649. \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629 \u0639\u0628\u0627\u0631\u0629 \u0639\u0646 \u0648\u0631\u0642\u0629 \u0628\u064a\u0636\u0627\u0621 \u062a\u0642\u0646\u064a\u0629 \u0646\u0647\u0627\u0626\u064a\u0629 \u0644\u0641\u0647\u0645 \u0645\u0648\u0627\u0635\u0641\u0627\u062a JIS G3444. \u0633\u0646\u0633\u062a\u0639\u0631\u0636 \u062f\u0631\u062c\u0627\u062a \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0627\u0644\u062e\u0645\u0633 (\u0628\u062f\u0621\u064b\u0627 \u0645\u0646 STK290 \u0625\u0644\u0649 STK540)\u060c \u0648\u0633\u0646\u0633\u0644\u0637 \u0627\u0644\u0636\u0648\u0621 \u0639\u0644\u0649 \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0627\u0644\u0645\u0647\u0645\u0629 \u0641\u064a \u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629\u060c \u0648\u0633\u0646\u0646\u0638\u0631 \u0641\u064a \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0641\u064a \u0627\u0644\u062e\u0648\u0627\u0632\u064a\u0642 \u0648\u0627\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629 \u0627\u0644\u0645\u062f\u0646\u064a\u0629 \u0648\u0627\u0644\u0625\u0646\u0634\u0627\u0621\u0627\u062a \u0627\u0644\u062b\u0642\u064a\u0644\u0629 \u062d\u062a\u0649 \u062a\u062a\u0645\u0643\u0646 \u0645\u0646 \u062a\u062d\u062f\u064a\u062f \u0623\u0641\u0636\u0644 \u0627\u0644\u0645\u0648\u0627\u062f \u0628\u0636\u0645\u0627\u0646 \u062a\u0627\u0645.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0645\u0627 \u0647\u0648 JIS G3444\u061f<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/alllandpipes.com\/standards\/jis-g3444.html\">JIS G3444<\/a>\u00a0\u0647\u064a \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0627\u0644\u064a\u0627\u0628\u0627\u0646\u064a\u0629 \u0627\u0644\u062a\u064a \u062a\u0635\u0641 \u201c\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a \u0644\u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629.\u201d \u0648\u0643\u0645\u0627 \u064a\u0648\u062d\u064a \u0627\u0633\u0645\u0647\u0627 \u0641\u0625\u0646 \u0646\u0637\u0627\u0642\u0647\u0627 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0647\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a \u0644\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u062f\u0646\u064a\u0629 \u0648\u0627\u0644\u0645\u0639\u0645\u0627\u0631\u064a\u0629 \u0648\u0627\u0644\u0623\u0628\u0631\u0627\u062c \u0627\u0644\u0641\u0648\u0644\u0627\u0630\u064a\u0629 \u0648\u0627\u0644\u0633\u0642\u0627\u0644\u0627\u062a \u0648\u0627\u0644\u0623\u0643\u0648\u0627\u0645 \u0648\u0645\u0627 \u0625\u0644\u0649 \u0630\u0644\u0643. \u0644\u064a\u0633 \u0644\u0646\u0642\u0644 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0623\u0648 \u062e\u062f\u0645\u0629 \u0627\u0644\u0636\u063a\u0637 (\u064a\u062a\u0645 \u062a\u0646\u0627\u0648\u0644 \u0627\u0644\u0635\u0631\u0641 \u0641\u064a \u0645\u0639\u064a\u0627\u0631 JIS \u0645\u0646\u0641\u0635\u0644, <a href=\"https:\/\/alllandpipes.com\/standards\/jis-g3454.html\">JIS G3454<\/a>).<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"437\" class=\"wp-image-22840\" src=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process.webp\" alt=\"\u0639\u0645\u0644\u064a\u0629 \u0644\u062d\u0627\u0645 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0628\u0627\u0644\u0645\u0646\u0634\u0627\u0631.\" srcset=\"https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process.webp 800w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process-300x164.webp 300w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process-768x420.webp 768w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process-600x328.webp 600w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process-1x1.webp 1w, https:\/\/alllandpipes.com\/wp-content\/uploads\/2025\/12\/lsaw-pipe-welding-process-10x5.webp 10w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">\u00a0<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u0641\u0643 \u0634\u0641\u0631\u0629 \u0627\u0644\u0627\u0633\u0645: \u0645\u0627\u0630\u0627 \u064a\u0639\u0646\u064a \u201cSTK\u201d\u061f<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0633\u0645\u064a\u0629 \u0645\u0646\u0637\u0642\u064a \u0648\u0644\u0643\u0646\u0647 \u064a\u062e\u062a\u0644\u0641 \u0639\u0646 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0623\u0645\u0631\u064a\u0643\u064a\u0629.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>S:<\/strong>\u00a0\u0627\u0644\u0641\u0648\u0644\u0627\u0630<\/li>\n\n<li><strong>T:<\/strong>\u00a0\u0623\u0646\u0628\u0648\u0628<\/li>\n\n<li><strong>K:<\/strong>\u00a0\u0643\u0648\u0643\u064a (\u0625\u0646\u0634\u0627\u0626\u064a\/\u0639\u0627\u0645)<\/li>\n\n<li><strong>\u0627\u0644\u0631\u0642\u0645 (\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c 400\u060c 490):<\/strong>\u00a0\u0647\u0630\u0627 \u0647\u0648 \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0627\u0644\u0623\u0643\u062b\u0631 \u0623\u0647\u0645\u064a\u0629. \u064a\u0645\u062b\u0644 \u0627\u0644\u0631\u0642\u0645 <strong>\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0645\u0646 \u0642\u0648\u0629 \u0627\u0644\u0634\u062f<\/strong>\u00a0\u0628\u0648\u062d\u062f\u0629 \u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2 (\u0623\u0648 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644).\n<ul>\n<li><em>\u0645\u0644\u0627\u062d\u0638\u0629:<\/em>\u00a0\u0648\u064a\u062e\u062a\u0644\u0641 \u0647\u0630\u0627 \u0639\u0646 API 5L (\u062d\u064a\u062b X52 = \u0642\u0648\u0629 \u0627\u0644\u062e\u0636\u0648\u0639) \u0623\u0648 <a class=\"wpil_keyword_link\" href=\"https:\/\/alllandpipes.com\/standards\/astm-a500.html\"   title=\"ASTM A500\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"548\">ASTM A500<\/a> (\u062d\u064a\u062b \u062a\u0643\u0648\u0646 \u0627\u0644\u062f\u0631\u062c\u0629 (\u0628) \u0627\u0639\u062a\u0628\u0627\u0637\u064a\u0629).<\/li>\n<\/ul>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0645\u062b\u0627\u0644 \u0639\u0644\u0649 \u0630\u0644\u0643.<\/strong>\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 STK400 \u0644\u0647\u0627 \u062d\u062f \u0623\u062f\u0646\u0649 <em>\u0627\u0644\u0634\u062f<\/em>\u00a0\u0642\u0648\u0629 400 \u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u0637\u0631\u0642 \u0627\u0644\u062a\u0635\u0646\u064a\u0639<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0645\u062a\u0639\u062f\u062f \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a \u0641\u064a\u0645\u0627 \u064a\u062a\u0639\u0644\u0642 \u0628\u0627\u0644\u0625\u0646\u062a\u0627\u062c. \u0641\u0647\u0648 \u064a\u063a\u0637\u064a:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0633\u0644\u0633:<\/strong>\u00a0\u0635\u064f\u0646\u0639\u062a \u0645\u0646 \u0635\u0641\u064a\u062d\u0629 \u0635\u0644\u0628\u0629.<\/li>\n\n<li><strong>\u0645\u0644\u062d\u0648\u0645\u0629 \u0628\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 (ERW):<\/strong>\u00a0\u0644\u0644\u0623\u0642\u0637\u0627\u0631 \u0627\u0644\u0635\u063a\u064a\u0631\u0629 \u0625\u0644\u0649 \u0627\u0644\u0645\u062a\u0648\u0633\u0637\u0629.<\/li>\n\n<li><strong>\u0645\u0644\u062d\u0648\u0645\u0629 \u0628\u0627\u0644\u0639\u0642\u0628:<\/strong>\u00a0(\u0623\u0642\u0644 \u0634\u064a\u0648\u0639\u064b\u0627 \u0641\u064a \u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0647\u064a\u0643\u0644\u064a \u0627\u0644\u062d\u062f\u064a\u062b).<\/li>\n\n<li><strong>\u0644\u062d\u0627\u0645 \u0627\u0644\u0642\u0648\u0633 \u0627\u0644\u0623\u0648\u062a\u0648\u0645\u0627\u062a\u064a\u0643\u064a:<\/strong>\u00a0\u0648\u064a\u0634\u0645\u0644 \u0630\u0644\u0643 <strong>LSAW (\u0627\u0644\u0644\u062d\u0627\u0645 \u0628\u0627\u0644\u0642\u0648\u0633 \u0627\u0644\u0637\u0648\u0644\u064a \u0627\u0644\u0645\u063a\u0645\u0648\u0631)<\/strong>\u00a0\u0648 <strong>SSAW (\u0627\u0644\u0645\u0644\u062d\u0648\u0645\u0629 \u0628\u0627\u0644\u0642\u0648\u0633 \u0627\u0644\u062d\u0644\u0632\u0648\u0646\u064a \u0627\u0644\u0645\u063a\u0645\u0648\u0631)<\/strong>\u00a0\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628\u060c \u0648\u0647\u064a \u0645\u062d\u0648\u0631 \u0627\u0644\u062a\u0631\u0643\u064a\u0632 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629 \u0648\u0627\u0633\u0639\u0629 \u0627\u0644\u0646\u0637\u0627\u0642 \u0648 <strong>\u0622\u0644\u0627\u0646\u062f\u0632<\/strong>\u00a0\u0627\u0644\u0642\u062f\u0631\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0627\u0644\u062f\u0631\u062c\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629: STK400 \u0645\u0642\u0627\u0628\u0644 STK490<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u0641\u064a \u062d\u064a\u0646 \u0623\u0646 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u064a\u0633\u0631\u062f \u062e\u0645\u0633 \u062f\u0631\u062c\u0627\u062a (STK290\u060c STK290\u060c STK400\u060c STK490\u060c STK500\u060c STK540)\u060c \u062a\u0647\u064a\u0645\u0646 \u062f\u0631\u062c\u062a\u0627\u0646 \u0639\u0644\u0649 \u0627\u0644\u0633\u0648\u0642: STK400 \u0648STK490.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>1. <\/strong>\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 STK400<strong>\u00a0(\u062e\u064a\u0627\u0631 \u0627\u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u0639\u0627\u0645\u0629)<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0627\u0644\u062e\u0635\u0627\u0626\u0635:<\/strong>\u00a0\u0643\u0645\u0627 \u0623\u0646 STK400 \u0647\u064a \u0623\u064a\u0636\u064b\u0627 \u0627\u0644\u062f\u0631\u062c\u0629 \u0627\u0644\u0623\u0643\u062b\u0631 \u0645\u0628\u064a\u0639\u064b\u0627. \u0648\u064a\u062a\u0645\u064a\u0632 \u0628\u0627\u0644\u0644\u064a\u0648\u0646\u0629 \u0648\u0642\u0627\u0628\u0644\u064a\u0629 \u0627\u0644\u0644\u062d\u0627\u0645 \u0627\u0644\u062c\u064a\u062f\u0629\u060c \u0648\u064a\u062a\u064a\u062d \u0645\u062d\u062a\u0648\u0627\u0647 \u0627\u0644\u0645\u0646\u062e\u0641\u0636 \u0645\u0646 \u0627\u0644\u0643\u0631\u0628\u0648\u0646 \u0633\u0647\u0648\u0644\u0629 \u0627\u0644\u062a\u0634\u0643\u064a\u0644 \u0648\u0627\u0644\u0644\u062d\u0627\u0645 \u0641\u064a \u0627\u0644\u0645\u064a\u062f\u0627\u0646 \u062f\u0648\u0646 \u0645\u0639\u0627\u0644\u062c\u0627\u062a \u0645\u0639\u0642\u062f\u0629 \u0642\u0628\u0644 \u0627\u0644\u062a\u0633\u062e\u064a\u0646.<\/li>\n\n<li><strong>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629:<\/strong>\u00a0\u0623\u0639\u0645\u0627\u0644 \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u062f\u0646\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629\u060c \u0648\u0627\u0644\u0633\u0642\u0627\u0644\u0627\u062a \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629\u060c \u0648\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u062f\u0639\u0645\u060c \u0648\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0633\u064a\u0627\u062c\u060c \u0648\u0627\u0644\u0623\u0637\u0631 \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0627\u0644\u062e\u0641\u064a\u0641\u0629.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>2. <\/strong>\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 STK490<strong>\u00a0(\u0627\u0644\u062e\u064a\u0627\u0631 \u0639\u0627\u0644\u064a \u0627\u0644\u0642\u0648\u0629)<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0627\u0644\u062e\u0635\u0627\u0626\u0635:<\/strong>\u00a0\u064a\u064f\u0639\u062f STK490 \u062e\u0637\u0648\u0629 \u0643\u0628\u064a\u0631\u0629 \u0641\u064a \u0627\u0644\u0623\u062f\u0627\u0621. \u0645\u0639 \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u0642\u0648\u0629 \u0627\u0644\u0634\u062f \u0627\u0644\u062a\u064a \u062a\u0628\u0644\u063a 490 \u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2 \u0648\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u062e\u0636\u0648\u0639 \u0627\u0644\u062a\u064a \u062a\u0628\u0644\u063a 315 \u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2\u060c \u0641\u0647\u064a \u062a\u0642\u0631\u064a\u0628\u064b\u0627 <strong>34% \u0623\u0642\u0648\u0649 34%<\/strong>\u00a0(\u0641\u064a \u0627\u0644\u0639\u0627\u0626\u062f) \u0645\u0646 STK400.<\/li>\n\n<li><strong>\u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629:<\/strong>\u00a0\u0648\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0647\u064a \u0623\u0646\u0647 \u064a\u0645\u0643\u0646 \u0644\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u062a\u0635\u0645\u064a\u0645 \u0647\u064a\u0627\u0643\u0644 \u0623\u062e\u0641 \u0648\u0632\u0646\u064b\u0627. \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0633\u0645\u0643 \u062c\u062f\u0627\u0631 \u0623\u0631\u0642 \u0644\u0646\u0641\u0633 \u062d\u0645\u0644 \u0627\u0644\u062a\u062d\u0645\u064a\u0644\u060c \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u0645\u0646 \u0625\u062c\u0645\u0627\u0644\u064a \u062d\u0645\u0648\u0644\u0629 \u0627\u0644\u0635\u0644\u0628 \u0648\u0627\u0644\u062d\u0645\u0644 \u0639\u0644\u0649 \u0627\u0644\u0623\u0633\u0627\u0633.<\/li>\n\n<li><strong>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629:<\/strong>\u00a0\u0623\u0628\u0631\u0627\u062c \u0627\u0644\u0646\u0642\u0644 \u0627\u0644\u062b\u0642\u064a\u0644\u0629\u060c \u0648\u0623\u0643\u0648\u0627\u0645 JIS G3444 \u0644\u0644\u0645\u0628\u0627\u0646\u064a \u0627\u0644\u0643\u0628\u064a\u0631\u0629\u060c \u0648\u0623\u0643\u0648\u0627\u0645 \u0645\u0646\u0639 \u0627\u0644\u0627\u0646\u0647\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0623\u0631\u0636\u064a\u0629\u060c \u0648\u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0627\u0644\u0628\u062d\u0631\u064a\u0629 \u0627\u0644\u0636\u062e\u0645\u0629.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>3. STK500 \u0648 STK540 (\u0641\u0627\u0626\u0642\u0629 \u0627\u0644\u0642\u0648\u0629)<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0647 \u0627\u0644\u062f\u0631\u062c\u0627\u062a \u0641\u064a \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0645\u062a\u062e\u0635\u0635\u0629 \u0644\u0623\u062d\u0645\u0627\u0644 \u0627\u0644\u062a\u062d\u0645\u0644 \u0627\u0644\u0642\u0635\u0648\u0649\u060c \u0645\u062b\u0644 \u0627\u0644\u062c\u0633\u0648\u0631 \u0630\u0627\u062a \u0627\u0644\u062c\u0645\u0627\u0644\u0648\u0646\u0627\u062a \u0627\u0644\u0643\u0628\u064a\u0631\u0629 \u062c\u062f\u064b\u0627 \u0623\u0648 \u0627\u0644\u0631\u0643\u0627\u0626\u0632 \u0641\u064a \u0623\u0639\u0645\u0627\u0642 \u0627\u0644\u0628\u062d\u0627\u0631\u060c \u0648\u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u062a\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062a\u0642\u0646\u064a\u0627\u062a \u0644\u062d\u0627\u0645 \u0623\u0643\u062b\u0631 \u062f\u0642\u0629 \u0628\u0633\u0628\u0628 \u0643\u064a\u0645\u064a\u0627\u0621 \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0627\u0644\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0643\u0645\u064a: \u0635\u062d\u0627\u0626\u0641 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u064a\u0648\u0641\u0631 \u0647\u0630\u0627 \u0627\u0644\u0642\u0633\u0645 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0644\u0644\u062d\u0633\u0627\u0628\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u0627\u0644\u062c\u062f\u0648\u0644 1: \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a (%)<\/strong><\/h3>\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<tbody>\n<tr>\n<td><strong>\u0627\u0644\u0635\u0641<\/strong><\/td>\n<td><strong>\u062c (\u0643\u0631\u0628\u0648\u0646)<\/strong><\/td>\n<td><strong>Si (\u0633\u064a\u0644\u064a\u0643\u0648\u0646)<\/strong><\/td>\n<td><strong>\u0627\u0644\u0645\u0646\u063a\u0646\u064a\u0632 (Mn)<\/strong><\/td>\n<td><strong>\u0641 (\u0627\u0644\u0641\u0648\u0633\u0641\u0648\u0631)<\/strong><\/td>\n<td><strong>S (\u0643\u0628\u0631\u064a\u062a)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>STK290<\/strong><\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>0.050 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.050 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<\/tr>\n<tr>\n<td><strong>STK400<\/strong><\/td>\n<td>0.25 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>-<\/td>\n<td>-<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<\/tr>\n<tr>\n<td><strong>STK490<\/strong><\/td>\n<td>0.18 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.55 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>1.50 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<\/tr>\n<tr>\n<td><strong>STK500<\/strong><\/td>\n<td>0.23 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.55 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>1.50 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<\/tr>\n<tr>\n<td><strong>STK540<\/strong><\/td>\n<td>0.23 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.55 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>1.60 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<td>0.040 \u0643\u062d\u062f \u0623\u0642\u0635\u0649<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n<p class=\"wp-block-paragraph\"><strong>\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0645\u0647\u0646\u062f\u0633<\/strong>\u00a0\u0644\u0627\u062d\u0638 \u0623\u0646\u0647 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0625\u0644\u0649 STK400\u060c \u0641\u0625\u0646 \u0627\u0644\u0643\u0631\u0628\u0648\u0646 \u0641\u0642\u0637 \u0647\u0648 \u0627\u0644\u0645\u062a\u0648\u062c (\u0625\u0644\u0649 \u062c\u0627\u0646\u0628 P\/S)\u060c \u0645\u0645\u0627 \u064a\u0633\u0645\u062d \u0628\u0645\u0631\u0648\u0646\u0629 \u0627\u0644\u0645\u0637\u0627\u062d\u0646. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0640 <strong>STK490<\/strong>, \u060c \u064a\u062a\u0645 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u0628\u0634\u0643\u0644 \u0635\u0627\u0631\u0645 \u0644\u0644\u063a\u0627\u064a\u0629 (\u0643\u0631\u0628\u0648\u0646 \u0645\u0646\u062e\u0641\u0636\u060c \u0645\u0646\u062c\u0646\u064a\u0632 \u0645\u0631\u062a\u0641\u0639) \u0644\u062a\u062d\u0642\u064a\u0642 \u0642\u0648\u0629 \u0639\u0627\u0644\u064a\u0629 \u0645\u0639 \u0627\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649 \u0642\u0627\u0628\u0644\u064a\u0629 \u0627\u0644\u0644\u062d\u0627\u0645.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u0627\u0644\u062c\u062f\u0648\u0644 2: \u0627\u0644\u062e\u0648\u0627\u0635 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629<\/strong><\/h3>\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<tbody>\n<tr>\n<td><strong>\u0627\u0644\u0635\u0641<\/strong><\/td>\n<td><strong>\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649. \u0642\u0648\u0629 \u0627\u0644\u0634\u062f (\u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2)<\/strong><\/td>\n<td><strong>\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649. \u0646\u0642\u0637\u0629 \u0627\u0644\u0639\u0627\u0626\u062f <\/strong><strong>(\u0646\u064a\u0648\u062a\u0646\/\u0645\u0645\u00b2)<\/strong><\/td>\n<td><strong>\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649. \u0627\u0644\u0627\u0633\u062a\u0637\u0627\u0644\u0629 (%) <\/strong><strong>(\u0637\u0648\u0644\u064a)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>STK290<\/strong><\/td>\n<td>290<\/td>\n<td>-<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td><strong>STK400<\/strong><\/td>\n<td><strong>400<\/strong><\/td>\n<td><strong>235<\/strong><\/td>\n<td><strong>23<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>STK490<\/strong><\/td>\n<td><strong>490<\/strong><\/td>\n<td><strong>315<\/strong><\/td>\n<td><strong>23<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>STK500<\/strong><\/td>\n<td>500<\/td>\n<td>355<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td><strong>STK540<\/strong><\/td>\n<td>540<\/td>\n<td>390<\/td>\n<td>20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n<p class=\"wp-block-paragraph\"><strong>\u0627\u0644\u0648\u062c\u0628\u0627\u062a \u0627\u0644\u0633\u0631\u064a\u0639\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629:<\/strong>\u00a0\u0648\u062a\u0648\u0641\u0631 \u0627\u0644\u0642\u0641\u0632\u0629 \u0645\u0646 STK400 \u0625\u0644\u0649 STK490 \u0645\u0643\u0633\u0628\u064b\u0627 \u0647\u0627\u0626\u0644\u0627\u064b \u0641\u064a \u0642\u0648\u0629 \u0627\u0644\u062e\u0636\u0648\u0639 (235 \u0625\u0644\u0649 315 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644)\u060c \u0648\u0647\u064a \u0645\u0639\u0644\u0645\u0629 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0644\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0627\u0644\u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0627\u0644\u0645\u0633\u0645\u0648\u062d \u0628\u0647\u0627 \u0648\u062c\u0648\u062f\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u062a\u0634\u062a\u0647\u0631 \u0645\u0639\u0627\u064a\u064a\u0631 JIS \u0628\u0627\u0644\u062a\u0632\u0627\u0645\u0647\u0627 \u0627\u0644\u0635\u0627\u0631\u0645 \u0628\u062f\u0642\u0629 \u0627\u0644\u0623\u0628\u0639\u0627\u062f. <strong>JIS G3444<\/strong>\u00a0\u064a\u062d\u062f\u062f \u0627\u0644\u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0627\u0644\u0635\u0627\u0631\u0645\u0629 \u0644\u0640<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062e\u0627\u0631\u062c\u064a (OD):<\/strong>\u00a0\u0645\u0642\u0633\u0645\u0629 \u0625\u0644\u0649 \u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 1 \u0648\u0627\u0644\u0641\u0626\u0629 2 \u0648\u0627\u0644\u0641\u0626\u0629 3 \u062d\u0633\u0628 \u062d\u062c\u0645 \u0627\u0644\u0642\u0637\u0631.<\/li>\n\n<li><strong>\u0633\u064f\u0645\u0643 \u0627\u0644\u062c\u062f\u0627\u0631:<\/strong>\u00a0\u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u064a\u0633\u0645\u062d \u0628\u0627\u0646\u062d\u0631\u0627\u0641 + \u063a\u064a\u0631 \u0645\u062d\u062f\u062f \/ -12.5% (\u0639\u0644\u0649 \u063a\u0631\u0627\u0631 <a class=\"wpil_keyword_link\" href=\"https:\/\/alllandpipes.com\/standards\/api-5l.html\"   title=\"API 5L\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"678\">API 5L<\/a>)\u060c \u0648\u0644\u0643\u0646 \u064a\u062a\u0645 \u062a\u0637\u0628\u064a\u0642 \u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0645\u062d\u062f\u062f\u0629 \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639.<\/li>\n\n<li><strong>\u0627\u0644\u0645\u0638\u0647\u0631:<\/strong>\u00a0\u064a\u062c\u0628 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u0629 \u0645\u0641\u064a\u062f\u0629 \u0648\u0645\u0633\u062a\u0642\u064a\u0645\u0629\u060c \u0648\u064a\u062c\u0628 \u0623\u0646 \u062a\u0643\u0648\u0646 \u0627\u0644\u0623\u0637\u0631\u0627\u0641 \u0645\u0642\u0637\u0648\u0639\u0629 \u0628\u0632\u0627\u0648\u064a\u0629 \u0642\u0627\u0626\u0645\u0629 \u0645\u0639 \u0645\u062d\u0648\u0631 \u0627\u0644\u0623\u0646\u0628\u0648\u0628\u0629. \u0648\u064a\u0646\u0628\u063a\u064a \u0623\u0646 \u064a\u0643\u0648\u0646 \u0627\u0644\u0633\u0637\u062d \u0646\u0638\u064a\u0641\u0627\u064b \u0648\u0645\u0646\u062a\u0638\u0645\u0627\u064b \u0628\u062f\u0648\u0646 \u062a\u0634\u0642\u0642\u0627\u062a \u0623\u0648 \u0642\u0634\u0648\u0631 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0645\u0646\u0639 \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">\u0645\u0632\u0627\u064a\u0627 \u0622\u0644\u0627\u0646\u062f<\/p>\n\n<p class=\"wp-block-paragraph\">\u064a\u062a\u0637\u0644\u0628 \u062a\u0635\u0646\u064a\u0639 \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 \u0627\u0644\u0643\u0631\u0628\u0648\u0646\u064a \u0630\u0627\u062a \u0627\u0644\u0623\u0642\u0637\u0627\u0631 \u0627\u0644\u0643\u0628\u064a\u0631\u0629 \u0644\u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0644\u0647\u0630\u0647 \u0627\u0644\u062a\u0641\u0627\u0648\u062a\u0627\u062a \u0627\u0644\u0636\u064a\u0642\u0629 \u0645\u0639\u062f\u0627\u062a \u0645\u062a\u0637\u0648\u0631\u0629. \u062a\u0645 \u062a\u062c\u0647\u064a\u0632 \u062e\u0637\u0648\u0637 \u0625\u0646\u062a\u0627\u062c \u0623\u0646\u0627\u0628\u064a\u0628 \u0623\u0644\u0627\u0646\u062f LSAW (JCOE) \u0648 SSAW \u0628\u0645\u0643\u0627\u0628\u0633 \u062a\u0634\u0643\u064a\u0644 \u062f\u0642\u064a\u0642\u0629 \u0648\u0645\u0639\u062f\u0627\u062a \u062a\u062d\u062c\u064a\u0645 \u0622\u0644\u064a\u0629. \u0648\u064a\u0636\u0645\u0646 \u0630\u0644\u0643 \u0623\u0646 \u0643\u0644 \u0623\u0646\u0628\u0648\u0628 - \u0633\u0648\u0627\u0621 \u0643\u0627\u0646 \u0643\u0648\u0645\u0629 \u0623\u0633\u0627\u0633 \u0628\u0642\u064a\u0627\u0633 20 \u0628\u0648\u0635\u0629 \u0623\u0648 \u0642\u0627\u0639\u062f\u0629 \u0628\u0631\u062c \u0628\u0642\u064a\u0627\u0633 60 \u0628\u0648\u0635\u0629 - \u064a\u0641\u064a \u0628\u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0627\u0644\u0635\u0627\u0631\u0645\u0629 \u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a JIS G3444.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0641\u064a \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u062f\u0646\u064a\u0629<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u0625\u0646 \u062a\u0639\u062f\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0627\u062a \u0645\u0648\u0627\u0635\u0641\u0627\u062a JIS G3444 \u064a\u062c\u0639\u0644\u0647\u0627 \u0639\u0646\u0635\u0631\u064b\u0627 \u0623\u0633\u0627\u0633\u064a\u064b\u0627 \u0641\u064a \u062b\u0644\u0627\u062b\u0629 \u0642\u0637\u0627\u0639\u0627\u062a \u0631\u0626\u064a\u0633\u064a\u0629 \u062d\u064a\u062b <strong>\u0623\u0644\u0627\u0646\u062f<\/strong>\u00a0\u062a\u0648\u0631\u064a\u062f \u0627\u0644\u0645\u0648\u0627\u062f \u0628\u0646\u0634\u0627\u0637.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>1. \u062e\u0648\u0627\u0632\u064a\u0642 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0641\u0648\u0644\u0627\u0630\u064a\u0629 (\u0627\u0644\u062e\u0648\u0627\u0632\u064a\u0642)<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">\u0647\u0630\u0627 \u0647\u0648 \u0623\u0643\u0628\u0631 \u062a\u0637\u0628\u064a\u0642 \u0645\u0646\u0641\u0631\u062f \u0644\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0630\u0627\u062a \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0643\u0628\u064a\u0631 \u0628\u0645\u0648\u062c\u0628 \u0647\u0630\u0647 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0623\u0643\u0648\u0627\u0645 \u0645\u0646\u0639 \u0627\u0644\u0627\u0646\u0647\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0623\u0631\u0636\u064a\u0629:<\/strong>\u00a0\u0641\u064a \u0627\u0644\u0645\u0646\u0627\u0637\u0642 \u0627\u0644\u062c\u0628\u0644\u064a\u0629 (\u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0641\u064a \u0627\u0644\u064a\u0627\u0628\u0627\u0646 \u0648\u0622\u0633\u064a\u0627)\u060c \u064a\u062a\u0645 \u062f\u0641\u0639 \u0623\u0646\u0627\u0628\u064a\u0628 STK490 \u0630\u0627\u062a \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u062b\u0642\u064a\u0644\u0629 \u0641\u064a \u0627\u0644\u0645\u0646\u062d\u062f\u0631\u0627\u062a \u0644\u0645\u0646\u0639 \u062d\u0631\u0643\u0629 \u0627\u0644\u062a\u0631\u0628\u0629.<\/li>\n\n<li><strong>\u0631\u0643\u0627\u0626\u0632 \u0627\u0644\u0623\u0633\u0627\u0633:<\/strong>\u00a0\u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0644\u0644\u062c\u0633\u0648\u0631 \u0648\u0627\u0644\u0645\u0628\u0627\u0646\u064a \u0648\u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0645\u0648\u0627\u0646\u0626.<\/li>\n\n<li><strong>\u0644\u0645\u0627\u0630\u0627 SSAW\u061f<\/strong>\u00a0\u0644\u0647\u0630\u0647 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a, <a href=\"https:\/\/alllandpipes.com\/product\/allland-steel-pipe\/ssaw-steel-pipe.html\"><strong>SSAW (\u062d\u0644\u0632\u0648\u0646\u064a)<\/strong>\u00a0\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628<\/a>\u00a0\u0647\u0648 \u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0645\u0641\u0636\u0644\u0629 \u0646\u0638\u0631\u064b\u0627 \u0644\u0642\u062f\u0631\u062a\u0647 \u0639\u0644\u0649 \u0625\u0646\u062a\u0627\u062c \u0623\u0642\u0637\u0627\u0631 \u0643\u0628\u064a\u0631\u0629 \u0648\u0623\u0637\u0648\u0627\u0644 \u0637\u0648\u064a\u0644\u0629 \u0628\u0634\u0643\u0644 \u0627\u0642\u062a\u0635\u0627\u062f\u064a.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>2. \u0627\u0644\u0623\u0628\u0631\u0627\u062c \u0648\u0627\u0644\u0635\u0648\u0627\u0631\u064a \u0627\u0644\u0641\u0648\u0644\u0627\u0630\u064a\u0629<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0623\u0628\u0631\u0627\u062c \u0627\u0644\u0625\u0631\u0633\u0627\u0644:<\/strong>\u00a0\u0648\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0633\u062a\u062e\u062f\u0645 \u0623\u0631\u062c\u0644 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0627\u0644\u0636\u062e\u0645\u0629 \u0630\u0627\u062a \u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 <strong>STK490<\/strong>\u00a0\u0623\u0648 <strong>STK540<\/strong>\u00a0\u0627\u0644\u0623\u0646\u0628\u0648\u0628.<\/li>\n\n<li><strong>\u0623\u0633\u0627\u0633\u0627\u062a \u062a\u0648\u0631\u0628\u064a\u0646\u0627\u062a \u0627\u0644\u0631\u064a\u0627\u062d:<\/strong>\u00a0\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u062d\u062f\u062f \u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0633\u062a\u0631\u0629 JIS G3444 \u0646\u0638\u0631\u064b\u0627 \u0644\u0645\u0648\u062b\u0648\u0642\u064a\u062a\u0647\u0627 \u0627\u0644\u0645\u062b\u0628\u062a\u0629.<\/li>\n\n<li><strong>\u0644\u0645\u0627\u0630\u0627 LSAW\u061f<\/strong>\u00a0\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u0623\u0631\u062c\u0644 \u0627\u0644\u062d\u0631\u062c\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u0623\u0628\u0631\u0627\u062c, <a href=\"https:\/\/alllandpipes.com\/product\/allland-steel-pipe\/lsaw-steel-pipe.html\"><strong>LSAW (\u0637\u0648\u0644\u064a)<\/strong>\u00a0\u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628<\/a>\u00a0\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u062a\u0645 \u062a\u062d\u062f\u064a\u062f\u0647 \u0628\u0633\u0628\u0628 \u0635\u0644\u0627\u0628\u062a\u0647 \u0627\u0644\u0641\u0627\u0626\u0642\u0629 \u0648\u0642\u062f\u0631\u062a\u0647 \u0639\u0644\u0649 \u0627\u0644\u062c\u062f\u0631\u0627\u0646 \u0627\u0644\u0633\u0645\u064a\u0643\u0629.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>3. \u0627\u0644\u0647\u064a\u0627\u0643\u0644 \u0627\u0644\u0645\u062f\u0646\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629<\/strong><\/h3>\n\n<p class=\"wp-block-paragraph\">\u0645\u0646 \u0627\u0644\u0644\u0627\u0641\u062a\u0627\u062a \u0648\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0625\u0636\u0627\u0621\u0629 \u0625\u0644\u0649 \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062f\u0639\u0627\u0645\u0627\u062a \u0644\u062d\u0641\u0631 \u0645\u062a\u0631\u0648 \u0627\u0644\u0623\u0646\u0641\u0627\u0642\u060c \u062a\u064f\u0639\u062f STK400 \u0628\u0645\u062b\u0627\u0628\u0629 \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u0641\u0642\u0631\u064a \u0627\u0644\u0645\u0648\u062b\u0648\u0642 \u0648\u0627\u0644\u0642\u0627\u0628\u0644 \u0644\u0644\u062d\u0627\u0645 \u0644\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629 \u0627\u0644\u062d\u0636\u0631\u064a\u0629.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0627\u0644\u062e\u0627\u062a\u0645\u0629<\/strong><\/span><\/h2>\n\n<p class=\"wp-block-paragraph\">\u0648\u062e\u062a\u0627\u0645\u064b\u0627 \u0641\u0625\u0646 \u0645\u0639\u064a\u0627\u0631 JIS G3444 \u0647\u0648 \u0645\u0639\u064a\u0627\u0631 \u0635\u0627\u0631\u0645 \u0642\u0627\u0626\u0645 \u0639\u0644\u0649 \u0642\u0648\u0629 \u0627\u0644\u0634\u062f \u0648\u0627\u0644\u0630\u064a \u0623\u0635\u0628\u062d \u0623\u0633\u0627\u0633 \u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0641\u064a \u0622\u0633\u064a\u0627 \u0648\u064a\u0648\u0641\u0631 \u0646\u0638\u0627\u0645 \u062f\u0631\u062c\u0627\u062a \u0645\u062d\u062f\u062f \u062c\u064a\u062f\u064b\u0627 \u0628\u062f\u0621\u064b\u0627 \u0645\u0646 STK400 \u0627\u0644\u0645\u0631\u0646 \u0648\u062d\u062a\u0649 STK490 \u0648STK540 \u0639\u0627\u0644\u064a \u0627\u0644\u062c\u0648\u062f\u0629. \u0648\u0633\u0648\u0627\u0621\u064b \u0643\u0627\u0646\u062a \u0647\u0646\u062f\u0633\u062a\u0643 \u0644\u0633\u0642\u0627\u0644\u0629 \u0628\u0633\u064a\u0637\u0629 \u0623\u0648 \u0643\u0648\u0645\u0629 \u0623\u0633\u0627\u0633\u0627\u062a \u0628\u0646\u064a\u0629 \u062a\u062d\u062a\u064a\u0629 \u0639\u0645\u0644\u0627\u0642\u0629\u060c \u0641\u0625\u0646 \u0645\u0639\u0631\u0641\u0629 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0647\u0630\u0627 \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0647\u064a \u0646\u0642\u0637\u0629 \u0627\u0644\u0628\u062f\u0627\u064a\u0629 \u0644\u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0647\u064a\u0643\u0644 \u0648\u0646\u062c\u0627\u062d \u0627\u0644\u0645\u0634\u0631\u0648\u0639. \u0641\u064a \u0634\u0631\u0643\u0629 Allland\u060c \u0644\u062f\u064a\u0646\u0627 \u0645\u0639\u0631\u0641\u0629 \u0639\u0645\u064a\u0642\u0629 \u0628\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629 \u0627\u0644\u064a\u0627\u0628\u0627\u0646\u064a\u0629 \u0648\u062e\u0628\u0631\u0627\u062a \u0637\u0648\u064a\u0644\u0629 \u0641\u064a \u0625\u0646\u062a\u0627\u062c \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0635\u0644\u0628 LSAW \u0648 SSAW \u0630\u0627\u062a \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0643\u0628\u064a\u0631 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0635\u0627\u0631\u0645\u0629 \u0644\u0645\u0639\u064a\u0627\u0631 JIS G3444. \u0648\u0633\u0648\u0627\u0621 \u0643\u0627\u0646 \u0645\u0634\u0631\u0648\u0639\u0643 \u0641\u064a \u0627\u0644\u064a\u0627\u0628\u0627\u0646 \u0623\u0648 \u0643\u0627\u0646 \u0645\u0634\u0631\u0648\u0639 \u0628\u0646\u0627\u0621 \u0628\u0646\u064a\u0629 \u062a\u062d\u062a\u064a\u0629 \u062f\u0648\u0644\u064a\u0629 \u062a\u0633\u062a\u062e\u062f\u0645 \u0645\u0648\u0627\u0635\u0641\u0627\u062a JIS\u060c \u064a\u0645\u0643\u0646\u0646\u0627 \u062a\u0642\u062f\u064a\u0645 \u062d\u0644\u0648\u0644 \u0645\u062a\u0648\u0627\u0641\u0642\u0629 \u062a\u0645\u0627\u0645\u064b\u0627 \u0648\u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0648\u062f\u0629 \u0641\u064a \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0635\u0645\u0645\u0629 \u062e\u0635\u064a\u0635\u064b\u0627 \u0644\u062a\u0644\u0628\u064a\u0629 \u0627\u062d\u062a\u064a\u0627\u062c\u0627\u062a \u0645\u0634\u0631\u0648\u0639\u0643 \u0627\u0644\u0645\u062d\u062f\u062f\u0629.<\/p>\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #046cb5;\"><strong>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629 (FAQ)<\/strong><\/span><\/h2>\n\n<h4>\u06331: \u0645\u0627 \u0647\u0648 \u0645\u0639\u064a\u0627\u0631 JIS G3444 \u0627\u0644\u0645\u0643\u0627\u0641\u0626 \u0644\u0645\u0639\u064a\u0627\u0631 ASTM\u061f<\/h4>\n\n<p class=\"wp-block-paragraph\">\u062c1: \u0644\u0627 \u064a\u0648\u062c\u062f \u0645\u0643\u0627\u0641\u0626 \u0648\u0627\u062d\u062f \u0645\u062b\u0627\u0644\u064a\u060c \u0648\u0644\u0643\u0646 \u0623\u0642\u0631\u0628 \u0627\u0644\u0645\u0642\u0627\u0631\u0628\u0627\u062a \u0647\u064a<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0644\u0640 STK400<\/strong>\u00a0\u064a\u0639\u0627\u062f\u0644 \u062a\u0642\u0631\u064a\u0628\u064b\u0627 <strong>ASTM A500 \u062f\u0631\u062c\u0629 B<\/strong>\u00a0(\u062f\u0627\u0626\u0631\u064a) \u0623\u0648<strong>ASTM A252 \u062f\u0631\u062c\u0629 2<\/strong>.<\/li>\n\n<li><strong>\u0644\u0640 STK490<\/strong>\u00a0\u064a\u0639\u0627\u062f\u0644 \u062a\u0642\u0631\u064a\u0628\u064b\u0627 <strong>ASTM A500 \u062f\u0631\u062c\u0629 C<\/strong>\u00a0(\u062f\u0627\u0626\u0631\u064a) \u0623\u0648<strong>ASTM A252 \u0627\u0644\u062f\u0631\u062c\u0629 3<\/strong>.<\/li>\n\n<li><em>\u0645\u0644\u0627\u062d\u0638\u0629:<\/em>\u00a0\u0627\u0637\u0644\u0628 \u062f\u0627\u0626\u0645\u064b\u0627 \u0645\u0646 \u0645\u0647\u0646\u062f\u0633 \u0625\u0646\u0634\u0627\u0626\u064a \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062e\u0648\u0627\u0635 \u0627\u0644\u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u0629 \u0642\u0628\u0644 \u0627\u0644\u0627\u0633\u062a\u0628\u062f\u0627\u0644\u060c \u062d\u064a\u062b \u062a\u062e\u062a\u0644\u0641 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629.<\/li>\n<\/ul>\n\n<h4>\u06332: \u0647\u0644 \u062a\u062a\u0637\u0644\u0628 \u0623\u0646\u0627\u0628\u064a\u0628 JIS G3444 \u0627\u062e\u062a\u0628\u0627\u0631\u064b\u0627 \u0647\u064a\u062f\u0631\u0648\u0633\u062a\u0627\u062a\u064a\u0643\u064a\u064b\u0627\u061f<\/h4>\n\n<p class=\"wp-block-paragraph\">\u062c2: \u0628\u0634\u0643\u0644 \u0639\u0627\u0645\u060c \u0644\u0627. \u0646\u0638\u0631\u064b\u0627 \u0644\u0623\u0646 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 JIS G3444 \u0645\u062e\u0635\u0635\u0629 \u201c\u0644\u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u0625\u0646\u0634\u0627\u0626\u064a\u0629 \u0627\u0644\u0639\u0627\u0645\u0629\u201d\u060c \u0641\u0647\u064a \u063a\u064a\u0631 \u0645\u062e\u0635\u0635\u0629 \u0644\u0627\u062d\u062a\u0648\u0627\u0621 \u0627\u0644\u0636\u063a\u0637. \u0648\u0644\u0630\u0644\u0643\u060c \u0644\u0627 \u064a\u0639\u062f \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0633\u062a\u0627\u062a\u064a\u0643\u064a \u0639\u0627\u062f\u0629\u064b \u0634\u0631\u0637\u064b\u0627 \u0625\u0644\u0632\u0627\u0645\u064a\u064b\u0627 \u0644\u0644\u0645\u0639\u064a\u0627\u0631 \u0645\u0627 \u0644\u0645 \u064a\u062a\u0645 \u0627\u0644\u0627\u062a\u0641\u0627\u0642 \u0639\u0644\u0649 \u0648\u062c\u0647 \u0627\u0644\u062a\u062d\u062f\u064a\u062f \u0628\u064a\u0646 \u0627\u0644\u0645\u0634\u062a\u0631\u064a \u0648\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629. \u0625\u0630\u0627 \u0643\u0646\u062a \u0628\u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0623\u0646\u0627\u0628\u064a\u0628 \u0644\u0636\u063a\u0637 \u0627\u0644\u0633\u0648\u0627\u0626\u0644\u060c \u064a\u062c\u0628 \u0639\u0644\u064a\u0643 \u0627\u0644\u0646\u0638\u0631 \u0625\u0644\u0649 JIS G3454 (STPG).<\/p>\n\n<h4>\u06333: \u0645\u0627\u0630\u0627 \u064a\u0639\u0646\u064a \u0627\u0644\u0631\u0642\u0645 \u201c400\u201d \u0641\u064a STK400\u061f<\/h4>\n\n<p class=\"wp-block-paragraph\">A3: \u064a\u0645\u062b\u0644 \u0627\u0644\u062d\u062f \u0627\u0644\u0623\u062f\u0646\u0649 \u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0634\u062f \u0644\u0644\u0641\u0648\u0644\u0627\u0630 \u0628\u0648\u062d\u062f\u0629 N\/\u0645\u0645\u00b2 (\u0623\u0648 MPa). \u0644\u0630\u0627\u060c \u0641\u0625\u0646 STK400 \u0644\u062f\u064a\u0647 \u0642\u0648\u0629 \u0634\u062f \u062f\u0646\u064a\u0627 \u062a\u0628\u0644\u063a 400 \u0645\u064a\u062c\u0627 \u0628\u0627\u0633\u0643\u0627\u0644. \u0647\u0630\u0627 \u0647\u0648 \u0627\u0644\u0641\u0631\u0642 \u0627\u0644\u0631\u0626\u064a\u0633\u064a \u0639\u0646 API \u0623\u0648 \u0628\u0639\u0636 \u0645\u0639\u0627\u064a\u064a\u0631 ASTM\u060c \u0648\u0627\u0644\u062a\u064a \u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0633\u0645\u064a \u0627\u0644\u062f\u0631\u062c\u0627\u062a \u0628\u0646\u0627\u0621\u064b \u0639\u0644\u0649 \u0642\u0648\u0629 \u0627\u0644\u0639\u0627\u0626\u062f (\u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c X52 = 52,000 \u0631\u0637\u0644 \u0631\u0637\u0644 \u0644\u0643\u0644 \u0628\u0648\u0635\u0629 \u0645\u0631\u0628\u0639\u0629 \u0645\u0646 \u0627\u0644\u0639\u0627\u0626\u062f). \u0627\u062d\u0631\u0635 \u0639\u0644\u0649 \u0639\u062f\u0645 \u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646 \u0627\u0644\u0627\u062b\u0646\u064a\u0646 \u0639\u0646\u062f \u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction In construction of civil engineering structures, architecture and high-rise buildings, JIS G3444 is the most popular, widely used standard for\u2002carbon steel pipe&#8230;<\/p>","protected":false},"author":1,"featured_media":22841,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"A complete guide to JIS G3444 (STK400\/STK490). We analyze chemical composition, mechanical properties, and ASTM equivalents for structural steel pipe.","_seopress_robots_index":"","_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[86],"class_list":["post-22839","post","type-post","status-publish","format-standard","has-post-thumbnail","category-blogs","tag-engineering-standards"],"acf":[],"_links":{"self":[{"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/posts\/22839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/comments?post=22839"}],"version-history":[{"count":3,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/posts\/22839\/revisions"}],"predecessor-version":[{"id":24093,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/posts\/22839\/revisions\/24093"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/media\/22841"}],"wp:attachment":[{"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/media?parent=22839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/categories?post=22839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alllandpipes.com\/ar\/wp-json\/wp\/v2\/tags?post=22839"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}