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Japan JIS VTWB3G 照明和电子设备钍钨丝和棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: VTWB3G / VTWB3G
Category Grade Standard Region/Area Standard Content
Metals VTWB3G JIS H4463 Japan 照明和电子设备钍钨丝和棒

Chemical composition(mass fraction)(wt.%) of the VTWB3G

Element Min Max Similar
W - - -
Fe - 0.0500 -
Other 1.6000 2.0500 -

Mechanical Properties of steel grade VTWB3G

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)
274 (≥) 152 (≥) 43 43 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade VTWB3G

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
43 - -     0.41 -  
474 168 - 32.3 121   -  
221 - 14 32.2   132 234

Heat Treatment of steel grade VTWB3G

Heat treated : 1371°C - 1214°C

Technological Curves of steel grade VTWB3G

Cross Reference Table (Equivalent Grade) of VTWB3G

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