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Germany DIN DIN EN 10084, 1.6657 Specialsteel Case hardening steels - Technical delivery conditions and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 1.6657
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 1.6657 Martensite DIN Germany Case hardening steels - Technical delivery conditions

Chemical composition(mass fraction)(wt.%) of the 1.6657

C Si Mn P S Cr Mo Ni
0.11 -0.17 ≤0.40 0.30 -0.60 ≤0.035 ≤0.035 0.80 -1.10 0.10 -0.25 3.00 -3.50

Mechanical Properties of steel grade 1.6657

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
328 (≥) 641 (≥) 23 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 1.6657

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
43 - -     0.44 -  
749 996 - 22.3 132   -  
737 - 21 31.2   122 443

Heat Treatment of steel grade 1.6657

Heat treated : 1945°C - 1197°C

Technological Curves of steel grade 1.6657

Cross Reference Table (Equivalent Grade) of 1.6657

Grade Standard Country Application
14NiCrMo13-4

Relevant standard of 1.6657

DIN EN 10084 Case hardening steels - Technical delivery conditions DIN-EN-10084.pdf

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