664

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#664

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664 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 664

Category	Type	Steel Grade
Steel Grades	High Alloy	664
		652
		S63199
		653
		660
		S66286
		661
		R30155
		662
		S66220
		663

Chemical composition(mass fraction)(wt.%) of the 664

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.06	0.20	0.25			14.90	44.30
Mo	Al	Cu	Nb	Ti	V	Ce
4.05	1.05			3.00
N	Co	Pb	B	Other	Approximate rnumbe
			0.01	Fe... W 3.65	D979

Mechanical Properties of steel grade 664

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)
573 (≥)	884 (≥)	31	43	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	444

Physical Properties of steel grade 664

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
32	-	-			0.42	-
591	916	-	14.3	443		-
724	-	43	22.2			313	123

Heat Treatment of steel grade 664

Heat treated : 1771°C - 1989°C

Technological Curves of steel grade 664

No Curve

Cross Reference Table (Equivalent Grade) of 664

Grade	Standard	Country	Application
AISI 664	AISI	USA	precipitation hardening
664.3			The Czech republic Structural steel
416640			The Czech republic Structural steel
16640			The Czech republic Structural steel

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664