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Precision Steel Pipe

  • Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard
  • Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard
  • Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard

    Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard

    Description:



    Usage:Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

    Section Shape:Round

    Outer Diameter:8mm~140mm

    Thickness:0.8mm~20mm

    Length:6meters, 9meters, 12meters, Random Length

    Surface:Annealing Bright, Phosphating

    Tolerance of Size:+/- 0.05mm



    parameters

    Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard.
    OD: 8mm~140mm
    Wall thickness: 0.8mm~20mm
    Tolerance: +/-0.1mm

    Technique: Cold drawing/Cold rolling
    Standard: ASME SA192/SA179, GB/T8162, GB/T8163, GB/T3639, DIN2391-2
    Steel material: 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, 40Cr, ST52, ST45, ST37.4, Q345B, etc
    Delivery state: BK, BKW, NBK, GBK, BKS
    Usage: widely used for mechanical processing, Automobile industry, hydraulic equipments
    Advantages of our high precision seamless steel pipe:
    1.       Smaller caliber
    2.       Accept small qty order
    3.       Good surface treatment
    4.       The pipe with superior performance, suitable for mechanical making

    introduction

    Designation Symbol Description
    Cold finished (hard) BK Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation
    Cold finished (soft) BKW The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding).
    Cold finished and stress-relleved BKS Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
    Annealed GBK The last cold forming process is followed by annealing in a controlled atmosphere
    Normalized NBK The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere