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Huangshi Chengquan Metal Material Co., Ltd.

20nicrmo13-4, 1.6660, Case Hardening Steels manufacturer / supplier in China, offering 20nicrmo13-4 1.6660 Case Hardening Steels, SUS444 Steel Sheet with High Quality and Competitive Price, 1.2825 Round Tool Steel Bar and so on.

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Supplier Homepage Product Structual Steel Case Hardening Steel 20nicrmo13-4 1.6660 Case Hardening Steels

20nicrmo13-4 1.6660 Case Hardening Steels

FOB Price: US $500-5,000 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $500-5,000/ Ton
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Port: Shanghai, China
Production Capacity: 5000tons/Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 20NiCrMo13-4 1.6660
  • Standard: DIN, BS
  • Technique: Hot Forged,or Hot Rolled
  • Surface Treatment: Polished
  • Application: Structural Steel Bar
  • Transport Package: Seaworth Packing
  • Origin: Huangshi, Hubei
  • Type: Round
  • Composition: Ferrous Steel Scrap
  • Shape: Round,Flat or Square
  • Special Use: Safety-Critical Parts
  • Trademark: CHENGQUAN
  • Specification: Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
  • HS Code: 7228100000
Product Description


• Gears subjected to high stresses, diverse parts subject to wear and fatigue in service.
• In the quenched and tempered condition: safety-critical parts.


• High mechanical properties.
• Good fatigue strength.
• After carburising, quenching and tempering, the surface hardness is around 730 HV.
• Good toughness of the carburised layer.
• For some carburising applications, oil quenching can be replaced with gas pressure quenching in order to minimise distortion due to the heat treatment.

All Grades Comparison


Quality Standard

EN 10084 2008 Case hardening steels

Chemical Composition(%)

0.17-0.220.30-0.600.40 max0.025 max0.035 max0.80-1.203.00-3.500.30-0.50

Hardness requirements for products delivered in the conditions

treated to improve shearability277HB max
soft annealed255HB max
treated to hardness range207HB-255HB
treated to ferrite-pearlite structure and hardness range197HB-241HB

Conditions for heat treating test bars and treatment of the steels:

ProcessTemperatures (oC)
End quench test850

Mill′s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
 20nicrmo13-4 1.6660 Case Hardening Steels
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