structure steel pipe

C45 seamless steel tube

C45 seamless steel tube

GB/T 8162 C45 steel tube  Hereinafter referred to as structural tube.
Structural tube, this standard is applicable to the general structure, mechanical structure with seamless steel tubes, seamless steel tube fluid standards applicable to general seamless steel pipe conveying fluid.Henan Bebon international Co. Ltd supply structure seamless steel tube. the main difference between structure of seamless steel pipe and seamless steel pipe is by root or hydraulic experiment for ultrasonic, eddy current and magnetic flux leakage testing.Therefore, If use in the standard of pressure pipeline steel pipe, seamless steel tube is unfavorable choose. Seamless steel pipe, said method for outer diameter, wall thickness. Heavy thick seamless steel tube is mainly used in mechanical processing, coal mining, hydraulic steel, such as a variety of purposes. 

C45 steel tube  chemical composition

Grade C % Si % Mn % P % S % Cr % Mo % Ni % Cr Mo Ni %
C45 0.42-0.5 0.4 0.5-0.8 0.045 0.045 0.4 0.1 0.4 0.63

The mechanical properties of C45 pipes

Steel grade Tensile strength Rm/MPa Yield Strength Rel/MPa Break elongation A% Impact test
thickness/mm T/°C absorbed energy KV2/J
≤16 >16-30 >30
No less than   No less than
C45 >=590 335 325 315 14   ---   ---


Heavy thick seamless steel tube: A53 - B A106 - B, ST42-2, C35, C45, ST45-8, ST52.4, mn5 20, 30 mn5, 25 CrMo4, 4130, SCM420, 4140 and CrMo4, 4135, etc. Classification of Heavy thick seamless steel tube  hot-rolled thick wall seamless steel tube, cold rolling thick wall seamless steel tube, cold drawn thick-walled seamless steel pipe, squeeze the thick wall seamless steel tube, pipe jacking.Structure with stainless steel seamless steel tube is widely used in chemical industry, petroleum, textile, medical, food, machinery and other industrial corrosion of pipeline and components and parts are made of stainless steel hot rolling (crowded, expanding) and cold drawing (rolling) seamless steel tube.

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