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Precision Steel Tube

   

Standard:  GB/T3639,GB/T8713,DIN2391-2,HK15-2000      
Application: For manufacture of mechanical structure,hydraulic pressure equipment,hydraulic pressure and cylinder
  Chemical Composition&Mechanical Properties
Delivery Condition BK BKW BKS NBK
Grade (Mpa) Tensile Strength (%)Elongation (Mpa) Tensile Strength (%)Elongation (Mpa) Tensile Strength (%)Elongation (Mpa) Tensile Strength (Mpa) Yield Strength (%)Elongation
10 410 6 375 10 335 12 335 205 24
20 510 5 450 8 430 10 410 245 20
35 590 4 550 6 520 8 530 315 17
45 645 4 630 5 610 7 600 355 14

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