The calculation formula of the theoretical weight of thick wall stainless steel pipe?

The material of thick wall stainless steel pipe main points are 201,202,301,304,304L,316,316 L,321,310S,317L,347H, 2205,2507,254SMO, 410,420,430, etc., According to different uses, it can be divided into seamless steel pipes for structure, seamless steel pipes for transportation, seamless steel pipes for boilers, high-pressure seamless steel pipes for boilers, high-pressure seamless steel pipes for fertilizer equipment, seamless steel pipes for geological drilling, seamless steel pipes for oil drilling, seamless steel pipes for oil cracking, seamless steel pipes for ships, cold-drawn and cold-rolled precision seamless steel pipes, and various alloy pipes.
The following is the theoretical calculation formula for thick wall stainless steel pipes to share:

Steel pipe weight calculation formula: [(outer diameter - wall thickness) × wall thickness] ×0.02466=kg/m (weight per meter)

Thick wall stainless steel pipe theoretical weight calculation formula: (outer diameter - wall thickness) × wall thickness ×0.02491=kg/m (weight per meter) thick wall stainless steel pipe theoretical weight calculation formula?