A839 Type Ⅱ

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America ASTM A839TypeⅡ 软磁用途的磷铁粉末冶金制造的零件技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A839TypeⅡ / A839 Type Ⅱ

Category	Grade	Standard	Region/Area	Standard Content
Metals	A839 Type Ⅱ	ASTM A839	America	软磁用途的磷铁粉末冶金制造的零件技术规范

Chemical composition(mass fraction)(wt.%) of the A839 Type Ⅱ

Element	Min	Max	Similar
P	0.7500	0.8500	-
O	-	0.1000	-
N	-	0.0100	-
Fe	-	-	-
C	-	0.0300	-

Mechanical Properties of steel grade A839 Type Ⅱ

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)
584 (≥)	115 (≥)	44	32	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	412

Physical Properties of steel grade A839 Type Ⅱ

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
34	-	-			0.23	-
184	543	-	34.3	422		-
551	-	11	41.2			241	143

Heat Treatment of steel grade A839 Type Ⅱ

Heat treated : 1318°C - 1772°C

Technological Curves of steel grade A839 Type Ⅱ

No Curve

Cross Reference Table (Equivalent Grade) of A839 Type Ⅱ

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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