870

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America SAE 870 Sintered powder metal parts: Ferrous and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 870 / 870

Category	Grade	Standard	Region/Area	Standard Content
Metals	870	SAE J 471	America	Sintered powder metal parts: Ferrous

Chemical composition(mass fraction)(wt.%) of the 870

Element	Min	Max	Similar
Other	-	4.5000	-
Cu	15.0000	25.0000	-
C	-	0.2500	-

Mechanical Properties of steel grade 870

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)
835 (≥)	372 (≥)	11	34	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	243

Physical Properties of steel grade 870

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
14	-	-			0.23	-
573	819	-	44.3	222		-
617	-	41	43.2			214	112

Heat Treatment of steel grade 870

Heat treated : 1319°C - 1319°C

Technological Curves of steel grade 870

No Curve

Cross Reference Table (Equivalent Grade) of 870

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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870