Origin	China
Grade	DIN2391
Specification	DIN2391
Technique	Seamless

Precision Steel Tube DIN2391

Standard for seamless precision steel tubes.

Application

Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services. For Auto. use,machinery use,oil cylinder tube,motorcycle shock reducer use,auto shock reducer inner cylinder,etc.

Details

size O.D.: 6.0-650.0mm   W.T.: 1.0-65mm   Length: Max.12000mm Steel Grade and Chemical Composition(%)  Standard  Grade  C≤  Si≤  Mn  P≤  S≤  DIN2391  St35  0.18  0.35  ≥0.40  0.025  0.025  St45  0.22  0.10-0.35  ≥0.40  0.025  0.025  St52  0.22  0.55  ≤1.60  0.025  0.025 Mechanical Properties Rm:Tensile Strength(Mpa)  ReH:Yield Point(Mpa)  A%:Elongation     Mpa=N/mm  Standard  Grade  BK  BKW  BKS  GBK  NBK  Rm≥  A%≥  Rm≥  A%≥  Rm≥  ReH≥  A%≥  Rm≥  A%≥  Rm≥  ReH≥  A%≥  DIN2391  St35  480  6  420  10  420  315  14  315  25  340-470  235  25  St45  580  5  520  8  520  375  12  390  21  440-570  235  21  St52  640  4  580  7  580  420  10  490  22  490-630  355  22

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KWK Steel
Specialized in steel tube ...