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Designation by Standards

Steel No. DIN EN AISI JIS ГОСТ
1.7131 - 16MnCr5 5115, 5117 / 18Ch6


Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.17 max. 0.40 1.15 0.95 - - - - -


Description
Alloyed carbon steel.

Applications
Higher stressed components - gears, shafts, crankshafts, connecting rods, cam shafts, etc.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.81
Thermal conductivity [W/m.K]: 41.0
Electric resistivity [Ohm mm2/m]: 0.16
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC 20-200oC 20-300oC 20-400oC 20-500oC
11.1 12.1 12.9 13.5 13.9


Soft Annealing
Heat to 650-700oC, cool slowly.

Intermediate Annealing
Temperature: 650-680oC.

Normalizing
Temperature: 850-880oC.

Carburizing
Temperature: 880-980oC.

Case Hardening
Temperature: 780-820oC.

Core Hardening
Harden from a temperature of 860-980oC followed by water, oil or thermal bath quenching.

Tempering
Tempering temperature: 150-200oC.

Forging
Hot forming temperature: 1100-850oC.

Machinability
No data.

Remark
All technical information is for reference only.