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Japan JIS TAF4220 钛及钛合金锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TAF4220 / TAF 4220
Category Grade Standard Region/Area Standard Content
Metals TAF 4220 JIS H4657 Japan 钛及钛合金锻件

Chemical composition(mass fraction)(wt.%) of the TAF 4220

Element Min Max Similar
C - 0.1000 -
V 20.0000 23.0000 -
Ti - - -
Al 3.5000 4.5000 -
N - 0.0500 -
Fe - 1.0000 -
H - 0.0150 -
O - 0.2500 -

Mechanical Properties of steel grade TAF 4220

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)
521 (≥) 569 (≥) 33 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade TAF 4220

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 - -     0.13 -  
241 845 - 43.3 243   -  
378 - 12 31.2   413 424

Heat Treatment of steel grade TAF 4220

Heat treated : 1352°C - 1997°C

Technological Curves of steel grade TAF 4220

Cross Reference Table (Equivalent Grade) of TAF 4220

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