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Japan JIS VTWB2G 照明和电子设备钍钨丝和棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: VTWB2G / VTWB2G
Category Grade Standard Region/Area Standard Content
Metals VTWB2G JIS H4463 Japan 照明和电子设备钍钨丝和棒

Chemical composition(mass fraction)(wt.%) of the VTWB2G

Element Min Max Similar
W - - -
Fe - 0.0500 -
Other 1.2000 1.6000 -

Mechanical Properties of steel grade VTWB2G

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)
133 (≥) 995 (≥) 43 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade VTWB2G

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
32 - -     0.34 -  
679 249 - 12.3 444   -  
832 - 24 21.2   433 412

Heat Treatment of steel grade VTWB2G

Heat treated : 1715°C - 1879°C

Technological Curves of steel grade VTWB2G

Cross Reference Table (Equivalent Grade) of VTWB2G

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