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B477 Grade A

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America ASTM B477GradeA 金银镍电接触合金 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B477GradeA / B477 Grade A
Category Grade Standard Region/Area Standard Content
Metals B477 Grade A ASTM B477 America 金银镍电接触合金

Chemical composition(mass fraction)(wt.%) of the B477 Grade A

Element Min Max Similar
Total Others - 0.2000 -
Tot. other - 0.1000 -
Other - 0.0100 -
Ni 2.6000 3.4000 -
Au 74.2000 75.8000 -
Ag 21.4000 22.6000 -

Mechanical Properties of steel grade B477 Grade A

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)
499 (≥) 531 (≥) 44 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade B477 Grade A

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
12 - -     0.32 -  
628 456 - 24.3 112   -  
855 - 41 12.2   121 333

Heat Treatment of steel grade B477 Grade A

Heat treated : 1468°C - 1748°C

Technological Curves of steel grade B477 Grade A

Cross Reference Table (Equivalent Grade) of B477 Grade A

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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