Generally, JIS G3461 STB 510 seamless steel pipe will show great deformation in the temperature of 450 to 650℃, which will lead to the bending of steel column and steel beam and loss of bearing capacity. Assuming no fire prevention and cooling maintenance

Compared with solid steel such as round steel, ASTM A333 Gr.7 seamless steel pipe is lighter in weight when bending and torsion strength is the same. ASTM A333 Gr.7 seamless steel pipe is a kind of economic section steel, which ASTM A333 Gr.7 seamless ste

The advantages of ASTM a210 seamless steel pipe are high pressure resistance, good toughness, long pipe section and few joints. The disadvantage is high price, easy to corrode, so the service life is short.

There are two kinds of 10CrMo910 alloy steel pipe. Alloy pipe is a kind of seamless steel pipe, its performance is much higher than ordinary seamless steel pipe, because the steel pipe contains more Cr, its performance is inferior to other seamless steel