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BS TA 57

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England B.S. BSTA57 Specification for plate of titanium-aluminium-molybdenum-tin-silicon alloy (tensile strength 1030-1220 MPa) (thickness over 50 mm up to and including 65 mm) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BSTA57 / BS TA 57
Category Grade Standard Region/Area Standard Content
Metals BS TA 57 BS 2TA 57 England Specification for plate of titanium-aluminium-molybdenum-tin-silicon alloy (tensile strength 1030-1220 MPa) (thickness over 50 mm up to and including 65 mm)

Chemical composition(mass fraction)(wt.%) of the BS TA 57

Element Min Max Similar
Ti - - -
Sn 1.5000 2.5000 -
Si 0.3000 0.7000 -
Others total - 0.4000 -
Others each - 0.1000 -
O2 - 0.2500 -
N2 - 0.0300 -
Mo 3.0000 5.0000 -
H2 - 0.0125 -
Fe - 0.2000 -
Al 3.0000 5.0000 -

Mechanical Properties of steel grade BS TA 57

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)
392 (≥) 862 (≥) 14 44 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade BS TA 57

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
11 - -     0.33 -  
217 399 - 43.3 212   -  
681 - 13 23.2   423 242

Heat Treatment of steel grade BS TA 57

Heat treated : 1869°C - 1887°C

Technological Curves of steel grade BS TA 57

Cross Reference Table (Equivalent Grade) of BS TA 57

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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