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1.6657

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14NiCrMo13-4 14NiCrMo13-4
#1-6657 #14NiCrMo13-4

Description

France AFNOR NF 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 AFNOR France 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)
744 (≥) 139 (≥) 31 24 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

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
21 - -     0.32 -  
722 911 - 13.3 434   -  
974 - 42 22.2   211 421

Heat Treatment of steel grade 1.6657

Heat treated : 1123°C - 1277°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

NF EN 10084 Case hardening steels - Technical delivery conditions NF-EN-10084.pdf
14NiCrMo13-4 14NiCrMo13-4
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