All raw materials are provided by famous suppliers such as Shougang, Laigang and Hebei iron and steel group, the quality of our products can be guaranteed.
The materials of seamless steel pipe are: ordinary and high-quality carbon structural steel (q215-a ~ duq275-a and 10 ~ 50 steel), low alloy steel (09mnv, 16Mn, etc.), alloy steel, stainless and acid resistant steel, etc.
Compared with solid steel such as round steel, the steel tube is lighter when the bending and torsion strength is the same, so it is a kind of economic section steel. Different materials of seamless steel pipe have different uses.
1) Introduction to seamless steel pipe material:
GB / T8162-1999 (seamless steel tubes for construction). It is mainly used for general structure and mechanical structure. The representative materials (grades): carbon steel 20, 45; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc.
GB / t8163-1999 (seamless steel tubes for conveying fluids). It is mainly used for transporting fluid pipeline on engineering and large equipment. The representative material (brand) is 20, Q345, etc.
GB3087-1999 (seamless steel tubes for low and medium pressure boilers). It is mainly used for conveying low and medium pressure fluid in industrial boiler and domestic boiler. The representative materials are 10 and 20 steel.
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