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Japan JIS VTWW3H 照明和电子设备钍钨丝和棒 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: VTWW3H / VTWW3H
Category Grade Standard Region/Area Standard Content
Metals VTWW3H JIS H4463 Japan 照明和电子设备钍钨丝和棒

Chemical composition(mass fraction)(wt.%) of the VTWW3H

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

Mechanical Properties of steel grade VTWW3H

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)
584 (≥) 251 (≥) 12 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade VTWW3H

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
22 - -     0.12 -  
285 225 - 44.3 333   -  
241 - 41 23.2   121 422

Heat Treatment of steel grade VTWW3H

Heat treated : 1244°C - 1342°C

Technological Curves of steel grade VTWW3H

Cross Reference Table (Equivalent Grade) of VTWW3H

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