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China GB ZQCr12 铸造磨球 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: ZQCr12 / ZQCr12
Category Grade Standard Region/Area Standard Content
Metals ZQCr12 GB/T 17445 China 铸造磨球

Chemical composition(mass fraction)(wt.%) of the ZQCr12

Element Min Max Similar
Si - 1.5000 -
S - 0.1000 -
P - 0.1000 -
Mo - 1.0000 -
Mn 0.3000 1.5000 -
Cu - 0.8000 -
Cr 4.0000 6.0000 -
C 2.1000 3.3000 -

Mechanical Properties of steel grade ZQCr12

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)
654 (≥) 188 (≥) 21 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade ZQCr12

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 - -     0.24 -  
956 138 - 44.3 231   -  
275 - 14 21.2   441 331

Heat Treatment of steel grade ZQCr12

Heat treated : 1232°C - 1597°C

Technological Curves of steel grade ZQCr12

Cross Reference Table (Equivalent Grade) of ZQCr12

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