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China YB CQT 钢锭模 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CQT / CQT
Category Grade Standard Region/Area Standard Content
Metals CQT YB/T 070 China 钢锭模

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

Element Min Max Similar
Total Others - 0.3000 -
RE - 0.0300 -
Mg 0.0300 0.0800 -
S - 0.0300 -
P - 0.1000 -
Mn 0.2000 0.8000 -
Si 2.2000 3.0000 -
C 3.4000 4.0000 -

Mechanical Properties of steel grade CQT

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)
645 (≥) 282 (≥) 31 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade CQT

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
41 - -     0.42 -  
993 191 - 31.3 133   -  
673 - 32 31.2   412 333

Heat Treatment of steel grade CQT

Heat treated : 1113°C - 1816°C

Technological Curves of steel grade CQT

Cross Reference Table (Equivalent Grade) of CQT

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