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GB 9948—×××× Seamless steel tubes for petroleum cracking

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  • What is a seamless steel tube made of?

    General-purpose seamless steel pipes are rolled by ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipelines or structural parts for conveying fluids.

  • What is the process of seamless tube?

    Seamless pipe is formed from a cylindrical bar of steel.
    The bar is heated to a high temperature and then a probe is inserted to create a hole through the cylinder.
    The cylinder is then transferred to rollers which size the cylinder to the specified diameter and wall thickness.

  • What is SMLS piping?

    Smls pipe is used for conveying fluid pipe, structure with seamless steel tubes, compared to the solid round steel, in the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacturing of structural and mechanical parts, such as

  • HS Code 7304 Harmonized System Code Of TUBES, PIPES AND HOLLOW PROFILES, SEAMLESS, OF IRON (OTHER THAN CAST IRON) OR STEEL.
GB 9948 seamless steel pipes are primarily used in petroleum cracking applications, such as in boilers, heat exchangers, and fluid pipelines of petroleum smelters. They are designed to withstand high temperatures and pressures.

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GB 9948—×××× Seamless steel tubes for petroleum cracking