Steel grade EN36C

EN36C (832M13) Engineering steel

832M13 grade steel is a nickel-chromium alloy case hardening steel that is specified for heavy duty, highly stressed applications which High Peak Steels supply for such as High duty gears for aircraft and Steering Worms.

When carburised and hardened the core strengths of 850 – 1230 n/mm2 are attainable. The presence of chromium increases hardenability, while the nickel content increases toughness and resistance to stock. The addition of molybdenum further increases this material’s hardenability when compared with grade 655M13 and improves its core strength after heat treatment. The nickel acts to increase the toughness and resistance to shock.

832M13 is still often referred to as EN36C steel – its equivalent grade under the previous BS 970: 1955 standard.

Steel stock range

High Peak Steels stock 832M13 in black steel round bar and bright steel round bar.

Associated standards

UK Standard EN36 | European Grades 15NiCr13 | Werkstoff 1.5752 | SAE/AISI 3415

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EN36C (655M13) black steel

ProductMin sizeMax size
codes-round225mm dia450mm dia
codes-flat2
codes-square2
codes-hex2

EN36C (655M13) bright mild steel

ProductMetric sizes
Min

Max
Imperial sizes
Min

Max
codes-round210mm dia50mm dia1/2" dia2" dia
codes-flat2
codes-square2
codes-hex2

EN36C (655M13) Chemical Composition

 CSiMnSPCrNiMo
Min0.10.10.350.73
Max0.160.350.60.040.03513.750.15

EN36C (655M13) 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)255

Typical Applications of EN36C steel

  • HIGH DUTY GEARS FOR AIRCRAFT
  • HEAVY VEHICLE AND AUTOMOBILE TRANSMISSION COMPONENTS
  • STEERING WORMS
  • TRACK ROD PINS
  • TIMING WHEELS
  • BREECH MECHANISMS
  • SMALL ARMS PARTS