{"id":22064,"date":"2025-11-12T17:28:32","date_gmt":"2025-11-12T09:28:32","guid":{"rendered":"https:\/\/alllandpipes.com\/?p=22064"},"modified":"2025-11-12T17:48:58","modified_gmt":"2025-11-12T09:48:58","slug":"steel-pipe-weight-chartcalculation-guide-based-on-density","status":"publish","type":"post","link":"https:\/\/alllandpipes.com\/ru\/blogs\/steel-pipe-weight-chartcalculation-guide-based-on-density.html","title":{"rendered":"\u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u0432\u0435\u0441\u0430 \u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0442\u0440\u0443\u0431\u0421\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u0438\u043a \u043f\u043e \u0440\u0430\u0441\u0447\u0435\u0442\u0430\u043c (\u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043f\u043b\u043e\u0442\u043d\u043e\u0441\u0442\u0438)"},"content":{"rendered":"\t\t
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Introduction<\/strong><\/span><\/h2>\n\n

In any large-scale piping project, whether for structural or fluid conveyance, project managers and engineers must contend with one core, unavoidable variable: Weight<\/strong>. Pipe weight is the single most critical factor in your project’s budget. It dictates your logistics and shipping costs, determines the crane capacity required for lifting, serves as a fundamental input for structural load calculations, and (most importantly) is the basis for your total procurement cost, as the vast majority of large diameter lsaw pipe\u00a0and ssaw pipe\u00a0is sold by the ton. Many in the industry rely on pre-made steel pipe weight charts, but a true professional\u2014an engineer, a project manager, or a technical buyer\u2014must understand how<\/em>\u00a0that chart is built. What is the science behind it? And what do you do when your pipe (like a custom-spec 48-inch LSAW pipe) isn’t on the standard chart? This guide provides both. First, we will provide the comprehensive reference charts. Second, and more importantly, we will give you the complete engineering pipe weight formula\u00a0and explain its foundation: the carbon steel density<\/strong><\/strong>. This guide will show you how to calculate pipe weight\u00a0for any pipe, any size, any time.<\/p>\n\n

\"steel<\/figure>\n\n

\u00a0<\/p>\n\n

The Constant: Carbon Steel Density<\/strong><\/span><\/h2>\n\n

Before any calculation is made,\u2002you have to know your constant. The whole weight of the steel pipe are calculated based on the constant\u2002density of the steel material itself. Density is just mass per volume. Although there can be slight variations between alloys, the standard\u2002density for typical carbon steel (the material used for products such as ASTM A53, API 5L, and structural pipe<\/a>) is a figure every engineer should have memorised.Here are the two core\u2002values you need to memorize:<\/p>\n\n

\u00b7 Metric:<\/strong>\u00a07850 kg\/m\u00b3<\/strong>\u00a0(or 7.85 g\/cm\u00b3)<\/p>\n\n

\u00b7 Imperial:<\/strong>\u00a0490 lb\/ft\u00b3<\/strong>\u00a0(or 0.2836 lb\/in\u00b3)<\/p>\n\n

This constant is the bedrock. Every formula and every number in every standard weight chart is derived from this single value.<\/p>\n\n

The Core Formula: How to Calculate Pipe Weight<\/strong><\/span><\/h2>\n\n

This is the most valuable tool in this guide. A chart is a reference, but the formula is a universal tool.<\/p>\n\n

The First Principle: The Logic<\/strong><\/span><\/h2>\n\n

The logic for calculating a pipe’s weight is simple. You are not paying for the “hole”; you are only paying for the steel. Therefore, the weight is: Weight = Volume of Steel \u00d7 Density of Steel<\/strong>.<\/p>\n\n

To find the Volume of Steel, you must first find the Cross-Sectional Area of the steel:<\/p>\n\n

1. Cross-Sectional Area<\/strong>\u00a0= (Total Area of Outer Circle) – (Area of Inner Hole)<\/p>\n\n

2. Area Formula:<\/strong>\u00a0A = (\u03c0\/4) * D\u00b2<\/p>\n\n

3. Therefore, Area<\/strong>\u00a0= [ (\u03c0\/4) * OD\u00b2 ] – [ (\u03c0\/4) * ID\u00b2 ]<\/p>\n\n

(Where OD is Outer Diameter and ID is Inner Diameter)<\/em><\/p>\n\n

4. Since ID = OD – (2 * Wall Thickness)<\/strong>, you can substitute this in, but the calculation is cumbersome.<\/p>\n\n

The Engineer’s Formula (The “Magic Number” Method)<\/strong><\/span><\/h2>\n\n

To simplify this for daily use, engineers developed a much faster formula that uses the Outer Diameter (OD) and Wall Thickness (WT) directly. This formula approximates the cross-sectional area as \u03c0 * (OD – WT) * WT\u00a0and then pre-calculates the geometry (\u03c0) and multiplies it by the carbon steel density\u00a0to create a single “magic number” or conversion factor. This is the pipe weight per foot formula<\/strong><\/strong>\u00a0(Imperial) and steel pipe weight per meter<\/strong><\/strong>\u00a0(Metric) that professionals use.<\/p>\n\n

Metric Formula (Weight in kg per meter):<\/strong> W (kg\/m) = (OD [mm] – WT [mm]) * WT [mm] * 0.0246615<\/p>\n\n

\u00b7 W:<\/strong>\u00a0Weight in kg\/meter<\/p>\n\n

\u00b7 OD:<\/strong>\u00a0Outer Diameter in millimeters<\/p>\n\n

\u00b7 WT:<\/strong>\u00a0Wall Thickness in millimeters<\/p>\n\n

\u00b7 0.0246615:<\/strong>\u00a0The “magic number” for metric steel calculation.<\/p>\n\n

Imperial Formula (Weight in lbs per foot):<\/strong> W (lb\/ft) = (OD [in] – WT [in]) * WT [in] * 10.69<\/p>\n\n

\u00b7 W:<\/strong>\u00a0Weight in lb\/foot<\/p>\n\n

\u00b7 OD:<\/strong>\u00a0Outer Diameter in inches<\/p>\n\n

\u00b7 WT:<\/strong>\u00a0Wall Thickness in inches<\/p>\n\n

\u00b7 10.69:<\/strong>\u00a0The “magic number” for imperial steel calculation.<\/p>\n\n

Building Authority: Where does 0.02466 come from?<\/strong> This isn’t magic; it’s just math. It’s the result of (\u03c0\/1000) * 7.85, which accounts for converting the density 7.85 g\/cm\u00b3\u00a0to kg\/mm\u00b3\u00a0and applying it to the dimensions in millimeters. A more precise derivation is (OD – WT) * WT * \u03c0 * (7850 kg\/m\u00b3) \/ 1,000,000 (mm\u00b2\/m\u00b2), which simplifies to (OD – WT) * WT * 0.0246615…. Understanding this proves the formula’s authority.<\/p>\n\n

The Reference Tool: Steel Pipe Weight Chart<\/strong>\u00a0(ASME B36.10M)<\/strong><\/span><\/h2>\n\n

While the formula is for calculation, the chart is for speed. The following chart provides the theoretical weight<\/strong>\u00a0for the most common pipe sizes as defined by the ASME B36.10<\/strong><\/u><\/strong>\u00a0standard, calculated using the formula above. This chart is an indispensable tool for engineers and estimators working with standard pipe inventories.<\/p>\n\n

(Note: SCH = Schedule, STD = Standard Wall, XS = Extra Strong, XXS = Double Extra Strong)<\/em><\/p>\n\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
NPS (in)<\/strong><\/td>\nO.D. (in)<\/strong><\/td>\nSchedule<\/strong><\/td>\nWall Thickness (in)<\/strong><\/td>\nWeight (lb\/ft)<\/strong><\/td>\nWeight (kg\/m)<\/strong><\/td>\n<\/tr>\n
1″<\/strong><\/td>\n1.315<\/td>\nSCH 40 \/ STD<\/td>\n0.133<\/td>\n1.68<\/td>\n2.50<\/td>\n<\/tr>\n
1″<\/td>\n1.315<\/td>\nSCH 80 \/ XS<\/td>\n0.179<\/td>\n2.17<\/td>\n3.23<\/td>\n<\/tr>\n
2″<\/strong><\/td>\n2.375<\/td>\nSCH 40 \/ STD<\/td>\n0.154<\/td>\n3.65<\/td>\n5.43<\/td>\n<\/tr>\n
2″<\/td>\n2.375<\/td>\nSCH 80 \/ XS<\/td>\n0.218<\/td>\n5.02<\/td>\n7.47<\/td>\n<\/tr>\n
3″<\/strong><\/td>\n3.500<\/td>\nSCH 40 \/ STD<\/td>\n0.216<\/td>\n7.58<\/td>\n11.28<\/td>\n<\/tr>\n
3″<\/td>\n3.500<\/td>\nSCH 80 \/ XS<\/td>\n0.300<\/td>\n10.25<\/td>\n15.25<\/td>\n<\/tr>\n
4″<\/strong><\/td>\n4.500<\/td>\nSCH 40 \/ STD<\/td>\n0.237<\/td>\n10.79<\/td>\n16.06<\/td>\n<\/tr>\n
4″<\/td>\n4.500<\/td>\nSCH 80 \/ XS<\/td>\n0.337<\/td>\n14.98<\/td>\n22.29<\/td>\n<\/tr>\n
6″<\/strong><\/td>\n6.625<\/td>\nSCH 40 \/ STD<\/td>\n0.280<\/td>\n18.97<\/td>\n28.23<\/td>\n<\/tr>\n
6″<\/td>\n6.625<\/td>\nSCH 80 \/ XS<\/td>\n0.432<\/td>\n28.57<\/td>\n42.51<\/td>\n<\/tr>\n
8″<\/strong><\/td>\n8.625<\/td>\nSCH 40 \/ STD<\/td>\n0.322<\/td>\n28.55<\/td>\n42.48<\/td>\n<\/tr>\n
8″<\/td>\n8.625<\/td>\nSCH 80 \/ XS<\/td>\n0.500<\/td>\n43.39<\/td>\n64.57<\/td>\n<\/tr>\n
10″<\/strong><\/td>\n10.750<\/td>\nSCH 40 \/ STD<\/td>\n0.365<\/td>\n40.48<\/td>\n60.24<\/td>\n<\/tr>\n
10″<\/td>\n10.750<\/td>\nSCH 80 \/ XS<\/td>\n0.500<\/td>\n54.74<\/td>\n81.46<\/td>\n<\/tr>\n
12″<\/strong><\/td>\n12.750<\/td>\nSCH 40 \/ STD<\/td>\n0.406<\/td>\n53.52<\/td>\n79.64<\/td>\n<\/tr>\n
12″<\/td>\n12.750<\/td>\nSCH 80 \/ XS<\/td>\n0.500<\/td>\n65.42<\/td>\n97.35<\/td>\n<\/tr>\n
14″<\/strong><\/td>\n14.000<\/td>\nSCH 40 \/ STD<\/td>\n0.438<\/td>\n63.45<\/td>\n94.42<\/td>\n<\/tr>\n
14″<\/td>\n14.000<\/td>\nSCH 80 \/ XS<\/td>\n0.594<\/td>\n85.60<\/td>\n127.38<\/td>\n<\/tr>\n
16″<\/strong><\/td>\n16.000<\/td>\nSCH 40 \/ STD<\/td>\n0.500<\/td>\n82.77<\/td>\n123.17<\/td>\n<\/tr>\n
16″<\/td>\n16.000<\/td>\nSCH 80 \/ XS<\/td>\n0.656<\/td>\n107.50<\/td>\n159.97<\/td>\n<\/tr>\n
18″<\/strong><\/td>\n18.000<\/td>\nSCH 40 \/ STD<\/td>\n0.562<\/td>\n104.67<\/td>\n155.76<\/td>\n<\/tr>\n
18″<\/td>\n18.000<\/td>\nSCH 80 \/ XS<\/td>\n0.750<\/td>\n138.15<\/td>\n205.58<\/td>\n<\/tr>\n
20″<\/strong><\/td>\n20.000<\/td>\nSCH 30 \/ STD<\/td>\n0.500<\/td>\n104.13<\/td>\n155.00<\/td>\n<\/tr>\n
20″<\/td>\n20.000<\/td>\nSCH 60 \/ XS<\/td>\n0.812<\/td>\n167.33<\/td>\n249.00<\/td>\n<\/tr>\n
24″<\/strong><\/td>\n24.000<\/td>\nSCH 20 \/ STD<\/td>\n0.375<\/td>\n94.62<\/td>\n140.81<\/td>\n<\/tr>\n
24″<\/td>\n24.000<\/td>\nSCH 40 \/ XS<\/td>\n0.688<\/td>\n171.28<\/td>\n254.88<\/td>\n<\/tr>\n
30″<\/strong><\/td>\n30.000<\/td>\nSCH STD (20)<\/td>\n0.375<\/td>\n118.66<\/td>\n176.58<\/td>\n<\/tr>\n
30″<\/td>\n30.000<\/td>\nSCH XS (30)<\/td>\n0.500<\/td>\n157.86<\/td>\n234.92<\/td>\n<\/tr>\n
36″<\/strong><\/td>\n36.000<\/td>\nSCH STD (20)<\/td>\n0.375<\/td>\n142.70<\/td>\n212.35<\/td>\n<\/tr>\n
36″<\/td>\n36.000<\/td>\nSCH 30<\/td>\n0.500<\/td>\n189.92<\/td>\n282.63<\/td>\n<\/tr>\n
48″<\/strong><\/td>\n48.000<\/td>\nSCH STD (20)<\/td>\n0.375<\/td>\n190.79<\/td>\n283.90<\/td>\n<\/tr>\n
48″<\/td>\n48.000<\/td>\nSCH 30<\/td>\n0.500<\/td>\n253.99<\/td>\n377.98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n

Practical Application<\/strong><\/span><\/h2>\n\n

The chart above is useful, but what happens when your project requires a non-standard specification? For Allland’s<\/strong>\u00a0core products\u2014large-diameter LSAW steel pipe<\/strong><\/strong>\u00a0and SSAW steel pipe<\/strong><\/strong>\u2014your specifications are almost always custom. You will never find an “ASME 48-inch SCH 65” pipe. Your spec will be: OD 1219.2mm, WT 20mm<\/strong>. This is where the chart fails, and the formula becomes your most important tool.<\/p>\n\n

Real-World Example: LSAW Pipe Weight Calculation<\/strong><\/strong><\/span><\/h2>\n\n

\u00b7 Problem:<\/strong>\u00a0Your project requires 1,000 meters of LSAW pipe\u00a0with an Outer Diameter of 48 inches (1219.2 mm) and a Wall Thickness of 20 mm. What is the theoretical weight per meter, and what is the total tonnage for your RFQ?<\/p>\n\n

\u00b7 Data (Metric):<\/strong><\/p>\n\n

OD = 1219.2 mm<\/span><\/p>\n\n

WT = 20 mm<\/span><\/p>\n\n

\u00b7 Formula:<\/strong><\/p>\n\n

W (kg\/m) = (OD – WT) * WT * 0.0246615<\/span><\/p>\n\n

\u00b7 Calculation:<\/strong><\/p>\n\n

4.1 W = (1219.2 – 20) * 20 * 0.0246615<\/span><\/p>\n\n

4.2 W = (1199.2) * 20 * 0.0246615<\/span><\/p>\n

4.3 W = 23984 * 0.0246615<\/span><\/p>\n\n

4.4 W \u2248 591.46 kg\/meter<\/span><\/p>\n\n

\u00b7 Total Tonnage:<\/strong><\/p>\n\n

4.5 Total Weight = 591.46 kg\/m * 1,000 meters<\/span><\/p>\n\n

4.6 Total Weight = 591,460 kg<\/span><\/p>\n\n

4.7 Total Tonnage = 591.46 Metric Tons<\/span><\/p>\n\n

Now you can confidently send your RFQ to Allland<\/strong>\u00a0for 591.46 tons<\/strong>\u00a0of 1219.2mm x 20mm LSAW pipe, and you will get a precise, competitive quote based on that tonnage.<\/p>\n\n

Engineer’s Note: Theoretical vs. Actual Weight<\/strong><\/span><\/h2>\n\n

Here again, this final tip\u2002is what distinguishes a professional buyer from a novice. So,\u2002the weight you have just worked out is the theoretical weight. This\u2002is the weight for the “nominal” dimensions (the name of the pipe). Actual weight refers to the real weight of the pipe if you\u2002were to place it on a scale. They are not same because every manufacturing standards ( ie API 5L<\/a> for LSAW ) allows a little bit variation or tolerance in the final\u2002product. For\u2002Example : 20mm wall thickness can have -5% \/ + 10% manufacturing tol\u00e9rance. This means the wall at any\u2002point may be as thin as 19mm or as thick as 22mm. This is a critical difference, especially with regard to cost: The Theoretical Weight is applied for designing,\u2002engineering and initial pricing purpose. Actual\u2002Weight (scale weight) The actual weight of the pipe (scale weight which is reported on the mill test certificate) is often utilized for billing and invoicing particularly when final due is decided based on fairness and transparency.<\/p>\n\n

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

The foundation of all steel pipe weight calculation<\/strong><\/strong>\u00a0is the physical carbon steel density<\/strong><\/strong>\u2014a constant of 7850 kg\/m\u00b3 (490 lb\/ft\u00b3). From this constant, we get two critical tools: the Steel Pipe Weight Chart<\/strong><\/strong>\u00a0for quick reference of standard sizes, and the universal Pipe Weight Formula<\/strong><\/strong>\u00a0for all custom and large-diameter projects. W (kg\/m) = (OD – WT) * WT * 0.02466\u00a0is the engineer’s most powerful tool for this task. As a specialized manufacturer of LSAW steel pipe<\/a>\u00a0and SSAW steel pipe<\/a>, Allland<\/strong>\u00a0understands that precise tonnage calculations are the foundation of your project’s budget. A proper weight calculation is the beginning of everything, a control on your logistics, engineering, and most important your\u2002total buying cost. Contact our technical team\u2002today with your precise requirements and we will issue a comprehensive quotation on the basis of an exact theoretical weight, enabling you to project with certainty.<\/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>\n\t\t","protected":false},"excerpt":{"rendered":"

Introduction In any large-scale piping project, whether for structural or fluid conveyance, project managers and engineers must contend with one core, unavoidable variable:…<\/p>","protected":false},"author":1,"featured_media":22066,"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":"Learn how to calculate steel pipe weight using the density formula. Our guide includes a full chart, the formula, and LSAW\/SSAW calculation examples.","_seopress_robots_index":"","_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-22064","post","type-post","status-publish","format-standard","has-post-thumbnail","category-blogs"],"acf":[],"_links":{"self":[{"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/posts\/22064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/comments?post=22064"}],"version-history":[{"count":3,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/posts\/22064\/revisions"}],"predecessor-version":[{"id":24088,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/posts\/22064\/revisions\/24088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/media\/22066"}],"wp:attachment":[{"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/media?parent=22064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/categories?post=22064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alllandpipes.com\/ru\/wp-json\/wp\/v2\/tags?post=22064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}