S275J0H is a medium carbon steel, which is a low alloy structural steel. It is mainly composed of carbon and iron elements, and contains a certain proportion of

ASTM A252 is a standard formulated by the American Society for Testing and Materials (ASTM), mainly applicable to spiral steel pipes in the construction field,

EN10216-1 is a European standard, a seamless steel pipe standard. It stipulates the manufacturing and inspection methods of seamless steel pipes working at high

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