About

Logistics planning for pipe transport requires precise conversion between tonnage and linear length. Trucking manifests list weight limits, but installation plans require length. This tool uses the standard theoretical weight formula for carbon steel to dynamically calculate the linear mass based on Outer Diameter (OD) and Wall Thickness. This approach eliminates reliance on static lookup tables, providing accuracy for non-standard or schedule-variable pipe sizes found in industrial supply chains.

Formulas

The calculation first determines the linear weight of the steel pipe, then divides the total shipment mass by this factor.

W_lin = (OD − t) × t × 0.02466

L = M × 1000W_lin

Where OD is Outer Diameter (mm), t is wall thickness (mm), M is total mass in tonnes, and 0.02466 is the steel density factor.

Reference Data

NPS (Inch)	OD mm	Schedule	Wall mm	Weight kg/m
2	60.3	40 (Std)	3.91	5.44
4	114.3	40 (Std)	6.02	16.07
6	168.3	40 (Std)	7.11	28.26
8	219.1	40 (Std)	8.18	42.55
10	273.0	40 (Std)	9.27	60.29
12	323.8	Std	9.53	73.88
16	406.4	Std	9.53	93.27
24	610.0	Std	9.53	141.12

Frequently Asked Questions

This factor combines the density of carbon steel (approx. 7.85 g/cm³) with the geometric conversion of cylindrical volume. It is the industry standard constant for metric pipe weight calculations.

No. This tool uses the specific gravity of Carbon Steel. Stainless steel is slightly heavier (approx 2% variance depending on grade), and aluminum is significantly lighter. Using this for aluminum would result in massive errors.

That is the primary use case for this tool. By entering the exact mill values for OD and Wall Thickness manually, you get an accurate calculation regardless of standard Schedule 40/80 definitions.

No. Values represent bare steel. Concrete coatings, bitumen, or heavy galvanization add weight that must be accounted for separately in logistics planning.