{"id":21638,"date":"2025-10-31T17:15:14","date_gmt":"2025-10-31T09:15:14","guid":{"rendered":"https:\/\/alllandpipes.com\/?p=21638"},"modified":"2025-10-31T17:48:50","modified_gmt":"2025-10-31T09:48:50","slug":"china-lsaw-manufacturer-welded-pipe-supplier-allland","status":"publish","type":"post","link":"https:\/\/alllandpipes.com\/fr\/blogs\/china-lsaw-manufacturer-welded-pipe-supplier-allland.html","title":{"rendered":"Fabricant chinois de tubes LSAW et fournisseur de tubes soud\u00e9s | Allland"},"content":{"rendered":"
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Are you searching for a reliable China LSAW manufacturer<\/strong><\/strong>? Are you sourcing Tube d'acier LSAW<\/strong><\/strong><\/a>\u00a0of exceptional quality for a critical project?<\/p>\n\n

Feel free to consult Allland, one of the best China LSAW pipe manufacturers and the\u2002welded pipe supplier that could provide the most services. Here you get not just\u2002best LSAW Pipes but overall Project Solutions. From our TUBE D'ACIER SSAW<\/a>\u2002for water and oil systems and PILING PIPE for foundations to pipe fittings and accessories, you will find what you need!<\/p>\n\n

\"lsaw<\/figure>\n\n

\u00a0<\/p>\n\n

China LSAW Steel Pipe Supply<\/strong><\/span><\/h2>\n\n

LSAW stands for Longitudinal Submerged Arc Welded.The product since more than 30 years is part of the modern steel pipe industry along with SSAW steel pipe and seamless pipe and is a key category in\u2002the pipe industry.<\/p>\n\n

The core technology of LSAW pipe lies in its production from discrete steel plates, which are formed and then joined with a straight, longitudinal weld seam. This manufacturing process produces LSAW steel pipes primarily designed for long-distance transportation and large-diameter pipelines, such as PIPELINE TERRESTRE<\/strong><\/strong>\u00a0et PIPELINE OFFSHORE<\/a><\/strong><\/strong>\u00a0syst\u00e8mes.<\/p>\n\n

Allland<\/strong>\u00a0offers an extensive range of LSAW pipe dimensions:<\/p>\n\n

\u00b7 Diam\u00e8tre ext\u00e9rieur :<\/strong>\u00a0\u03a6406.4mm ~ \u03a61524mm (16″ – 60″)<\/p>\n\n

\u00b7 \u00c9paisseur de la paroi :<\/strong>\u00a06mm ~ 60mm<\/p>\n\n

\u00b7 Longueur :<\/strong>\u00a03m ~ 12.5m (Standard single length)<\/p>\n\n

Custom dimensions are available based on project requirements, with wall thicknesses up to 60mm possible through our JCOE process. You\u2019re sure to find the perfect size!<\/p>\n\n

Proc\u00e9d\u00e9 de fabrication de tubes par soudage \u00e0 l'arc submerg\u00e9 (LSAW)<\/strong><\/span><\/h2>\n\n

Allland is a leading China LSAW pipe manufacturer, we have\u2002advanced and completed production lines for UOE and JCOE production manufacturing.While both processes use Double Submerged Arc Welding (DSAW) and Mechanical Expanding to\u2002have the finished pipe, their forming methods are different and offers different benefits you, the buyer.<\/p>\n\n

\"jcoe<\/figure>\n\n
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Key Aspect<\/strong><\/td>\nJCOE Process (Flexible Bending)<\/strong><\/td>\nUOE Process (Stamping Forming)<\/strong><\/td>\n<\/tr>\n
1. Forming Principle<\/strong><\/td>\nProgressive Press Bending<\/strong>: The steel plate is gradually pressed into shape through multiple steps: J<\/strong>-forming \u2192 C<\/strong>-forming \u2192 O<\/strong>-forming to close the seam.<\/td>\nStamping Forming<\/strong>: The plate is formed in two powerful strokes: first into a U<\/strong>-shape by a U-die, then into an O<\/strong>-shape by an O-die.<\/td>\n<\/tr>\n
2. Core Equipment<\/strong><\/td>\nCNC Step-by-Step Press<\/td>\nLarge, high-tonnage U-ing Press and O-ing Press.<\/td>\n<\/tr>\n
3. Forming Characteristics<\/strong><\/td>\nFlexible, gentle forming process. High precision and control, resulting in low internal stress.<\/td>\nMassive forming force. Highly efficient with excellent overall roundness and dimensional consistency.<\/td>\n<\/tr>\n
4. Best Use Case<\/strong><\/td>\nIdeal for multiple specifications, non-standard diameters, and small-batch orders.<\/strong><\/td>\nIdeal for high-volume, mass production of a single, standardized specification.<\/strong><\/td>\n<\/tr>\n
5. Product Advantage<\/strong><\/td>\nWider product adaptability.<\/strong>\u00a0The best choice for very thick-walled (up to 60mm+), high-grade steel pipes.<\/td>\nBetter efficiency for mass production.<\/strong>\u00a0Delivers superior quality and consistency for large, standard pipe orders.<\/td>\n<\/tr>\n
6. Subsequent Process<\/strong><\/td>\nBoth require Mechanical Expanding<\/strong>\u00a0to relieve stress and precisely shape the pipe.<\/td>\nBoth require Mechanical Expanding<\/strong>\u00a0to relieve stress and precisely shape the pipe.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n
\"uoe<\/figure>\n\n

Value-Added Services<\/strong><\/span><\/h2>\n\n

The thing is that a bare LSAW pipe is\u2002hardly the end product. Our welded pipe production at Allland extends beyond the manufacturing line with a full range of value added services, transforming a simple basic pipe into\u2002a solution a ready project.<\/p>\n\n

\u00b7 Anti-Corrosion Coatings:<\/strong>\u00a0We operate our own advanced coating facilities to produce FBE TUBES D'ACIER<\/strong><\/strong><\/a>, TUBE EN ACIER 3LPE<\/strong><\/strong><\/a>, et TUBE EN ACIER 3LPP<\/strong><\/strong>.<\/p>\n\n

FBE (Fusion Bonded Epoxy):<\/strong>\u00a0Basic anti-corrosion coating with good adhesion, suited as internal lining for CANALISATION D'EAU POTABLE<\/a> systems or as external coating layer without lining.<\/span><\/p>\n\n

3LPE (Three-Layer Polyethylene):<\/strong>\u00a0High performance system for\u2002the most demanding buried pipelines.It is composed of an FBE primer, an adhesive layer and a polyethylene outer layer which\u2002provides excellent mechanical protection and insulation.<\/span><\/p>\n\n

3LPP (Three-Layer Polypropylene):<\/strong>\u00a0Ideal for TUYAU \u00c0 HAUTE PRESSION<\/a><\/strong><\/strong>\u00a0or offshore applications where higher service temperatures are required.<\/p>\n\n

\u00b7 Pipe Processing:<\/strong>\u00a0Allland offers the full range of processing options to meet your specific needs, such as precision cut-to-length, weld beveling (chamfering), and threading,\u2002resulting in efficient and precise field jointing.<\/p>\n\n

\u00b7 Fittings and Couplings:<\/strong>\u00a0And to top off your solution, we also provide all corresponding\u2002Pipe Fittings and Grooved Fittings & Couplings, for a perfect 100% match, and so you don\u2019t have to buy from multiple suppliers.<\/p>\n\n

LSAW Pipe Quality, Standards, and Applications<\/strong><\/span><\/h2>\n\n

Quality Control and Standards<\/strong><\/h3>\n\n

Allland, as a distinguished China LSAW pipe\u2002manufacturer, We provide LSAW pipes conform with international standards such as API 5L PSL1\/PSL2<\/a>, ISO 3183-3 and supply different grade from L245 to X80.<\/p>\n\n

Our quality control process is rigorous and transparent:<\/p>\n\n

1. Material Control:<\/strong>\u00a0Rigorous inspection of all incoming raw steel plates.<\/p>\n\n

2. Inspection visuelle :<\/strong>\u00a0100% surface examination of all pipes and weld joints.<\/p>\n\n

3. Weld Inspection (NDT):<\/strong>\u00a0We perform complete NDT, with UT fast scan and slow scan, RT, and MT to verify a perfect weld.<\/p>\n\n

4. Physical Property Testing:<\/strong>\u00a0We perform tensile, impact and other physical tests\u2002to verify that the mechanical properties of the pipe conform to the standard.<\/p>\n\n

5. Essai hydrostatique :<\/strong>\u00a0Each pipe is\u2002hydrostatically tested to ensure its strength and leak tightness.<\/p>\n\n

We also welcome third-party inspection services (such as SGS, BV, TUV) to guarantee the highest quality of the pipes you receive.<\/p>\n\n

Advantages & Applications of LSAW Pipe<\/strong><\/h3>\n\n

The LSAW process has a distinct\u2002advantages in the product, such as stable and uniform welding quality, good weld seam profile with low flow resistance, high production efficiency. This makes it the perfect selection\u2002for severe large diameter service:<\/p>\n\n

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\u00b7 Ing\u00e9nierie structurelle :<\/strong>\u00a0Heavy-duty supports for bridges, large buildings, and port facilities. This is our TUBE STRUCTUREL<\/strong><\/strong>\u00a0et PILING PIPE<\/a><\/strong><\/strong>\u00a0line.<\/p>\n\n

\u00b7 Water Supply and Drainage:<\/strong>\u00a0Critical urban water supply networks and sewage treatment pipelines, including CANALISATION D'EAU POTABLE<\/strong><\/strong>\u00a0systems (when internally lined).<\/p>\n\n

\u00b7 Specialty Applications:<\/strong>\u00a0We also manufacture LSAW for specialty industrial uses, such as TUYAU FLOTTANT<\/strong><\/strong>\u00a0for dredging and TUYAU D'\u00c9PAULE<\/strong><\/strong>.<\/p>\n\n

FAQ<\/strong><\/span><\/h2>\n\n

Q1: What is the main difference between LSAW and SSAW pipe?<\/strong><\/h4>\n\n

A1 :<\/strong>\u00a0The blast seam is the\u2002only difference. LSAW STEEL PIPE: It has one straight (lengthwise) seam, which makes it the best\u2002option for high-pressure and critical service ONSHORE PIPELINE systems.SSAW STEEL PIPE: It has a helical (spiral) seam; this is a cheaper production method for larger diameter pipes for low and medium pressure applications such as water supply.<\/p>\n\n

Q2: Why would I choose the JCOE process for my LSAW pipe?<\/strong><\/h4>\n\n

A2 :<\/strong>\u00a0The JCOE procedure lends\u2002itself perfectly to flexibility. You would select this if\u2002your project needs non-standard diameters, unusually thick walls (e.g. above 50mm), or small batch volumes.A UOE line is designed for large volume mass production and is not very suitable for these custom orders.<\/p>\n\n

Q3: What are TUBE EN ACIER 3LPE<\/strong>\u00a0et FBE TUBES D'ACIER<\/strong>?<\/strong><\/h4>\n\n

A3 :<\/strong>\u00a0These are not pipe products but rather high quality, high performance anti-corrosion coatings for steel\u2002pipes. FBE STEEL PIPE has a Fusion Bonded Epoxy coating which is good for the internal lining (used\u2002for DRINK WATER PIPELINE) or as a base coat.3LPE STEEL PIPE utilizes two additional layers to provide the highest level of mechanical and under ground protection, which\u2002is why it is the preferred solution for buried ONSHORE PIPELINE applications.<\/p>\n\n

Contact Allland Today!<\/strong><\/span><\/h2>\n\n

After reading this guide, you should have a solid understanding of LSAW steel pipes. If you need to purchase Tube d'acier LSAW<\/strong><\/strong>, trusting Allland<\/strong>\u00a0is absolutely the right choice!<\/p>\n\n

Here, you not only get steel pipes meticulously crafted with care but also receive a highly detailed, tailor-made solution from a complete welded pipe supply<\/strong><\/strong>\u00a0partner.<\/p>\n\n

If you wish to purchase LSAW steel pipes, contact us immediately by clicking \u201cRequest a Quote\u201d!<\/strong><\/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":"

Are you searching for a reliable China LSAW manufacturer? Are you sourcing LSAW steel pipe\u00a0of exceptional quality for a critical project? Feel free…<\/p>","protected":false},"author":1,"featured_media":21643,"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":"Allland is a top China LSAW manufacturer. We offer a complete LSAW welded pipe supply, including JCOE\/UOE, API 5L, and anti-corrosion coatings (3LPE\/FBE).","_seopress_robots_index":"","_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[91],"class_list":["post-21638","post","type-post","status-publish","format-standard","has-post-thumbnail","category-blogs","tag-industrial-steel-pipes"],"acf":[],"_links":{"self":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/posts\/21638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/comments?post=21638"}],"version-history":[{"count":3,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/posts\/21638\/revisions"}],"predecessor-version":[{"id":23922,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/posts\/21638\/revisions\/23922"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/media\/21643"}],"wp:attachment":[{"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/media?parent=21638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/categories?post=21638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alllandpipes.com\/fr\/wp-json\/wp\/v2\/tags?post=21638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}