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665M17

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14NiCrMo13-4 EN35
#665M17 #EN35

Description

UK B.S. BS970: 1991, 665M17 Specialsteel Black 2% low carbon nickel molybdenum case hardening steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 665M17
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 665M17 B.S. UK Black 2% low carbon nickel molybdenum case hardening steel

Chemical composition(mass fraction)(wt.%) of the 665M17

C Si Mn Mo Ni
0.140 -0.200 0.10 -1.40 0.35 -0.75 0.20 -0.30 1.50 -2.00

Mechanical Properties of steel grade 665M17

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)
339 (≥) 795 (≥) 44 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 665M17

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
22 - -     0.44 -  
692 333 - 13.3 324   -  
196 - 23 14.2   334 131

Heat Treatment of steel grade 665M17

Heat treated : 1911°C - 1592°C

Technological Curves of steel grade 665M17

Relevant standard of 665M17

BS970: 1991 Black 2% low carbon nickel molybdenum case hardening steel BS970:-1991.pdf
14NiCrMo13-4 EN35
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