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China JB QT600-3 机床零件热处理技术条件 第5部分:渗氮、氮碳共渗 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: QT600-3 / QT600-3
Category Grade Standard Region/Area Standard Content
Metals QT600-3 JB/T 8491.5 China 机床零件热处理技术条件 第5部分:渗氮、氮碳共渗

Chemical composition(mass fraction)(wt.%) of the QT600-3

Element Min Max Similar

Mechanical Properties of steel grade QT600-3

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)
297 (≥) 977 (≥) 44 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade QT600-3

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
13 - -     0.43 -  
695 417 - 21.3 342   -  
757 - 11 12.2   342 441

Heat Treatment of steel grade QT600-3

Heat treated : 1954°C - 1915°C

Technological Curves of steel grade QT600-3

Cross Reference Table (Equivalent Grade) of QT600-3

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