Theoretical Weight Calculation Formula of Seamless Steel Pipe

Seamless steel pipe has a hollow section and they are widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and some solid materials.


Calculation formula for calculating the theoretical weight of common profiles:



m=F×L×ρ


m—quality Kg; F—cross-sectional area m2; L—length m; ρ—density*Kg/m3


Noted: F calculation method of cross-sectional area:


1. Square steel tube: F= a2


2. Steel pipe: F=3.1416×$(D-$) 

D—diameter $—thickness


3. Steel plate, flat steel: F= a×$ a—width

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