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Japan JIS VTWB3D 照明和电子设备钍钨丝和棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: VTWB3D / VTWB3D
Category Grade Standard Region/Area Standard Content
Metals VTWB3D JIS H4463 Japan 照明和电子设备钍钨丝和棒

Chemical composition(mass fraction)(wt.%) of the VTWB3D

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

Mechanical Properties of steel grade VTWB3D

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)
578 (≥) 126 (≥) 21 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade VTWB3D

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 - -     0.44 -  
626 357 - 43.3 433   -  
126 - 14 23.2   442 212

Heat Treatment of steel grade VTWB3D

Heat treated : 1125°C - 1763°C

Technological Curves of steel grade VTWB3D

Cross Reference Table (Equivalent Grade) of VTWB3D

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