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America UNS T74005 工具和模具表面处理用铬钢固体焊条 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: T74005 / T74005
Category Grade Standard Region/Area Standard Content
Metals T74005 -- America 工具和模具表面处理用铬钢固体焊条

Chemical composition(mass fraction)(wt.%) of the T74005

Element Min Max Similar
Si - 0.9000 -
Mn 1.5000 2.5000 -
Fe - - -
Cr 1.5000 3.0000 -
C 0.5000 0.8000 -

Mechanical Properties of steel grade T74005

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)
294 (≥) 469 (≥) 11 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade T74005

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
33 - -     0.41 -  
396 113 - 22.3 434   -  
851 - 24 34.2   213 334

Heat Treatment of steel grade T74005

Heat treated : 1871°C - 1848°C

Technological Curves of steel grade T74005

Cross Reference Table (Equivalent Grade) of T74005

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