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China YS FTa-2 冶金用钽粉 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FTa-2 / FTa-2
Category Grade Standard Region/Area Standard Content
Metals FTa-2 YS/T 259 China 冶金用钽粉

Chemical composition(mass fraction)(wt.%) of the FTa-2

Element Min Max Similar
Mo - 0.0100 -
W - 0.0100 -
Ti - 0.0100 -
Si - 0.0200 -
Ni - 0.0200 -
Fe - 0.0300 -
C - 0.0500 -
N - 0.0200 -
H - 0.0100 -
O - 0.3000 -
Nb 2.5000 3.5000 -
Mo - 0.0100 -
W - 0.0100 -
Ti - 0.0100 -
Si - 0.0200 -
Ni - 0.0200 -
Fe - 0.0200 -
C - 0.0500 -
N - 0.0200 -
H - 0.0100 -
O - 0.3000 -
Nb - 0.0300 -

Mechanical Properties of steel grade FTa-2

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)
131 (≥) 669 (≥) 23 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade FTa-2

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
23 - -     0.32 -  
317 939 - 33.3 111   -  
823 - 14 13.2   111 143

Heat Treatment of steel grade FTa-2

Heat treated : 1836°C - 1386°C

Technological Curves of steel grade FTa-2

Cross Reference Table (Equivalent Grade) of FTa-2

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