• High Peak Steels Ltd, Brookfield Ind Est, Peakdale Road, Glossop, Derbyshire, SK13 6LQ

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BLACK 665M17

Description

This is a 2% nickel, molybdenum case hardening steel grade. 665M17 is suitable for applications requiring wear resistance and shock resistance. It offers good core strength and impact properties with little temper brittleness. Combining good core strength, toughness and fatigue resistance this grade can be case hardened up to 60HRc.

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Products & Sizes

ProductMin sizeMax size
codes-round250mm dia200mm dia
codes-flat2
codes-square2
codes-hex2

Associated Standards

StandardCode
UK StandardEN34
European Grades
Werkstoff
SAE/AISI4615

Chemical Composition

 CSiMnSPCrNiMo
Min0.140.10.351.50.2
Max0.20.40.750.040.0350.320.3

 

Mechanicals

 Yield
N/mm2
0.2% proof
N/mm2
UTS (Rm)
N/mm2
Elong (A)
%
Red of Area (Z)
%
Hardness
HB
Impact Test (KV)
J
Normalised207
Quenched & Tempered770mm max12

Typical Applications

  • Automotive parts
  • Case Harden Products
  • pinions
  • gears
  • Track Rod Pins
  • Heavy Duty Engineering components
  • Transmission components
UA-23101739-40