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Japan JIS VTWW3D 照明和电子设备钍钨丝和棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: VTWW3D / VTWW3D
Category Grade Standard Region/Area Standard Content
Metals VTWW3D JIS H4463 Japan 照明和电子设备钍钨丝和棒

Chemical composition(mass fraction)(wt.%) of the VTWW3D

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

Mechanical Properties of steel grade VTWW3D

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)
472 (≥) 695 (≥) 33 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade VTWW3D

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
24 - -     0.41 -  
454 154 - 32.3 312   -  
876 - 33 13.2   331 331

Heat Treatment of steel grade VTWW3D

Heat treated : 1241°C - 1498°C

Technological Curves of steel grade VTWW3D

Cross Reference Table (Equivalent Grade) of VTWW3D

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