B631 Class A3

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America ASTM B631ClassA3 银钨电接触材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B631ClassA3 / B631 Class A3

Category	Grade	Standard	Region/Area	Standard Content
Metals	B631 Class A3	ASTM B631	America	银钨电接触材料

Chemical composition(mass fraction)(wt.%) of the B631 Class A3

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade B631 Class A3

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
261 (≥)	867 (≥)	13	42	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	241

Physical Properties of steel grade B631 Class A3

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	-	-			0.22	-
197	371	-	42.3	312		-
347	-	13	42.2			433	441

Heat Treatment of steel grade B631 Class A3

Heat treated : 1379°C - 1263°C

Technological Curves of steel grade B631 Class A3

No Curve

Cross Reference Table (Equivalent Grade) of B631 Class A3

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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