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We are High Quality St52, St52.3, St52.4 Seamless Pipe, din2448 st52 steel pipes , DIN 2391 St52 steel pipe, St52, St52.3, St52.4 Seamless Pipe, St52 Steel Pipe suppliers, DIN2448 st52 steel pipe, din 1629 st44/st52 steel pipe at best price

What is St52, St52.3, St52.4 Seamless Pipe?
American steel grade German steel St52
The “St” means a general structural carbon steel (that is, plain carbon rather than low alloy) which is not intended to be heat treated (that is, other than the heat treatment which naturally occurs during cool-down from the hot-rolling operation).The “52” means a minimum tensile strength of 52 kg per sq. mm. In SI units, this is 510 MPa. In Imperial units, it’s 73,961 (that is, in practice, 74,000 or 75,000) psi.

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