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  • EN 10216-1 seamless steel tube specification and application
    2020-11-30
    EN 10216-1 seamless steel tube series specifies standards for cold-worked precision steel tubes of various sizes. Precision steel tubes are increasingly used in mechanical engineering due to the continuous dimensions and improved tolerances and surfaces o
  • DIN 17172 STE 360.7 seamless steel pipe chemical composition
    2020-11-30
    DIN 17172 STE 360.7 seamless steel pipe is usually untreated after rolling, pressing or stretching hot forming operations, provided that the hot forming operations achieve irredeemable structural conditions and are sufficiently uniform that no further col
  • Causes of cracking of JIS G3444 STK400 steel pipe
    2020-11-30
    In order to save cost, some JIS G3444 STK400 steel pipe manufacturers will select round steel produced by small steel plants for processing, but the JIS G3444 STK400 steel pipe produced by these small steel plants will contain many impurities, bubbles, in
  • Surface quality of JIS G3444 STK500 steel pipe
    2020-11-30
    Cracks, folds, scarring, rolling and separation are not allowed on the inner and outer surfaces of JIS G3444 STK500 steel pipe. These JIS G3444 STK500 steel pipe defects shall be completely cleared, the clearance depth shall not exceed the negative deviat
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