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China GB 1K108 Designation and classification of rapidly quenched metals and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1K108 / 1K108
Category Grade Standard Region/Area Standard Content
Metals 1K108 GB/T 15019 China Designation and classification of rapidly quenched metals

Chemical composition(mass fraction)(wt.%) of the 1K108

Element Min Max Similar
Si+B 5.0000 15.0000 -
M 8.0000 15.0000 -
Fe+Co 75.0000 90.0000 -

Mechanical Properties of steel grade 1K108

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)
665 (≥) 662 (≥) 12 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 1K108

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
14 - -     0.43 -  
493 916 - 32.3 333   -  
191 - 34 24.2   332 313

Heat Treatment of steel grade 1K108

Heat treated : 1635°C - 1911°C

Technological Curves of steel grade 1K108

Cross Reference Table (Equivalent Grade) of 1K108

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