20Cr4 Quenched and Tempered Alloy Steel-Alloy Structure Steel-Heat Treated

• Post Date:

  Jun 07,2013

• Expiry Date:

  Jun 07,2014

• Detailed Description:

  Quantity: 5Metric Tons
  Price:950 USD Metric Tons
  Applications
  20Cr4 Quenched and Tempered Alloy Steel is mainly used for making cam shaft,driven gears of small tractor. This kind of steel also is mostly used in the manufacturing of the high demand heart intensity, surface under wear, section under 30 mm or complex and not big load carburized parts (oil quenching), such as: machine tool transmission gear, gear shaft, worm and piston pins, claw clutch, etc.
  
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  All Grades Comparison
  GB/T 3077 Material no. DIN17210 BS970 ГOCT 4543
  20Cr 1.7027 20CR4 527A19/527M20 20X
  NFA ASTM A29M ASTM A322 ASTM A304 JIS G4104
  18C3 5120 G51200(UNS) H51200(UNS) SCr420
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  Chemical Composition(%)
  C Mn Si P S Cr
  0.18-0.24 0.60-0.90 0.40 max 0.035 max 0.035 max 0.70-1.00
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  HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES
  - TEMPERATURE ° C Cooling Medium
  Hot working 850-1150 air
  Soft Annealing 650-700 furnace
  Carburizing 880-980 -
  Core hardening 860-900 water
  Tempering 150-200 air
  
  
  
  
  
  Shanghai Unite Steel CO.,LTD
  
  Cindy Liu
  Tel: +86--021--35316960-811
  Fax: +86--021--35316961
  Email:cindyliu@shunitesteel.com
  www.shunitesteel.com
  www.shunitesteel.com.cn

• Company:

  Shanghai Unite Steel Trading Co., Ltd.     [ China ]        

• Contact:

  Cindy Liu

• Tel:

  86-21-35316960-811

• Fax:

  86-21-35316961

• Email:

  cindyliu@shunitesteel.com