SACM 645

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Japan JIS SACM645 铝铬钼钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SACM645 / SACM 645

Category	Grade	Standard	Region/Area	Standard Content
Metals	SACM 645	JIS G4202	Japan	铝铬钼钢

Chemical composition(mass fraction)(wt.%) of the SACM 645

Element	Min	Max	Similar
Si	0.1500	0.5000	-
S	-	0.0300	-
P	-	0.0300	-
Ni	-	0.2500	-
Mo	0.1500	0.3000	-
Mn	-	0.6000	-
Cu	-	0.3000	-
Cr	1.3000	1.7000	-
C	0.4000	0.5000	-
Al	0.7000	1.2000	-

Mechanical Properties of steel grade SACM 645

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)
655 (≥)	844 (≥)	23	41	31	Solution and Aging, Annealing, Ausaging, Q+T,etc	432

Physical Properties of steel grade SACM 645

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	-	-			0.42	-
158	322	-	11.3	222		-
539	-	32	43.2			111	133

Heat Treatment of steel grade SACM 645

Heat treated : 1494°C - 1674°C

Technological Curves of steel grade SACM 645

No Curve

Cross Reference Table (Equivalent Grade) of SACM 645

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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