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TA21

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China GJB TA21 航空用钛合金管材规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: TA21 / TA21
Category Grade Standard Region/Area Standard Content
Metals TA21 GJB 3423A China 航空用钛合金管材规范

Chemical composition(mass fraction)(wt.%) of the TA21

Element Min Max Similar
Ti - - -
Al 0.4000 1.5000 -
Mn 0.5000 1.3000 -
C - 0.1000 -
Fe - 0.3000 -
Si - 0.1200 -
Zr - 0.3000 -
O - 0.1500 -
N - 0.0500 -
H - 0.0120 -
Others total - 0.1000 -
Total Others - 0.3000 -

Mechanical Properties of steel grade TA21

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)
179 (≥) 251 (≥) 43 12 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade TA21

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 -  
211 956 - 11.3 143   -  
841 - 43 21.2   212 143

Heat Treatment of steel grade TA21

Heat treated : 1361°C - 1833°C

Technological Curves of steel grade TA21

Cross Reference Table (Equivalent Grade) of TA21

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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Jiangyou Longhai Special Steel Co.,Ltd.

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