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B774 203-239

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America ASTM B774203-239 低熔点金属 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B774203-239 / B774 203-239
Category Grade Standard Region/Area Standard Content
Metals B774 203-239 ASTM B774 America 低熔点金属

Chemical composition(mass fraction)(wt.%) of the B774 203-239

Element Min Max Similar
Sn 24.5000 25.5000 -
Pb 24.5000 25.5000 -
Bi 49.5000 50.5000 -

Mechanical Properties of steel grade B774 203-239

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)
524 (≥) 537 (≥) 43 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade B774 203-239

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
21 - -     0.21 -  
773 347 - 23.3 324   -  
749 - 13 42.2   232 414

Heat Treatment of steel grade B774 203-239

Heat treated : 1326°C - 1247°C

Technological Curves of steel grade B774 203-239

Cross Reference Table (Equivalent Grade) of B774 203-239

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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