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

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BLACK STEEL GRADE EN39B / 835M15

Description

EN39B is a 4.5% nickle-chromium-molybdenum case hardening steel which may be carburised and hardened in large sections to produce a hard wear resistance case and developing a core strength of the order of 1310N/mm2 with a good resistance to stock. Complies to UK Standard EN39B.

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Products & Sizes

ProductMin sizeMax size
codes-round232mm dia120mm dia

Associated Standards

StandardCode
UK StandardEN39B

Chemical Composition

 CSiMnSPCrNiMo
Min0.120.100.251.003.900.15
Max0.180.350.500.0400.0351.404.300.30

 

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
Annealed (min)
Annealed (max)277
Q&T capability test on 19mm sample (min)13108
Q&T capability test on 19mm sample (max)

Typical Applications

  • Heavy Duty Gears
  • Heavy Duty Worms
  • Heavy Roller Bearings
  • Breech Mechanisms
  • Arms Components
  • Camshafts
  • Clutch Plates
  • Valve Rockers
UA-23101739-40