Seamless steel pipes for construction are widely used in the construction industry, such as the underground pipeline transportation, groundwater extraction when building buildings, and boiler hot water transportation etc.. The materials are 10#, 20#, 30#, 35#, 45# and so on.

Its production process is round tube blank → heating → perforation → three-roll skew rolling, continuous rolling or extrusion → pipe removal → sizing (or diameter reduction) → cooling → straightening → hydraulic test (or flaw detection) → marking → entering library.

The calculation formula of the weight per meter of carbon steel seamless pipe: 0.02466*wall thickness*(outer diameter-wall thickness); the calculation formula of the weight per meter of stainless steel seamless pipe: 0.02491*wall thickness*(outer diameter-wall thickness); the calculation formula of the weight per meter of alloy steel seamless pipe: 0.02483*wall thickness (outer diameter - wall thickness).