Q:What is the formula for calculating the theoretical weight of rectangular steel pipes?

2[(a-d-2r+π(r+d/2)/2+(b-d-2r+π(r+d/2)/2]x7.85d(kg)

a, b are the length and width of the rectangular tube (m), r is the arc radius of the four corners of the tube cavity (m), d is the wall thickness (mm)

Time：07/12/2023 15:07:11