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Seamless steel tube knowledge

And classification 1, according to the production methods category (1) – seamless hot-rolled pipes, cold rolling mill, cold drawn tubes, extruded tubes, pipe jacking (2) pipe (A) according to the process–arc welded pipes, electric resistance welded pipes (high frequency, low frequency), the gas pipe, stove...
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Did you know that performance standards for seamless steel tubes GB9948 high-pressure hose is suitable for oil refinery furnace tubes, heat exchangers and pipe seamless steel tubes

I. the seamless implementation of the standards, do you know? 1 structure with seamless steel tube: GB8162-99 2, transmission fluid pipe joints: GB8163-99 3, boiler pipe: GB3087-1999 BS6323-7 Submerged Arc Welded Steel Tubes 4, high pressure seamless boiler tubes: GB5310-95 (ST45.8-type) 5, chemical fertilizer plants...
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Cold drawn precision steel tubes

Cold drawn precision steel tubes is one of a high precision of cold-drawn steel tube material. Due to precision steel inner and outer wall layer, free oxidation under high pressure without leakage, high precision, high finish, cold deformation, flaring, flattening without cracking a little, so...
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