604

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#604

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

Datasheet for: Steel Grades:High Alloy: 604

Category	Type	Steel Grade
Steel Grades	High Alloy	604
		1.6368
		20MnMoNi4-5
		1.6311
		17MnMoV6-4
		1.5403
		28NiCrMo4
		1.6513
		601
		602
		603

Chemical composition(mass fraction)(wt.%) of the 604

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.20	0.75	0.50			1.00
Mo	Al	Cu	Nb	Ti	V	Ce
1.00					0.10
N	Co	Pb	B	Other	Approximate number
				Fe...	Chromoloy

Mechanical Properties of steel grade 604

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)
791 (≥)	248 (≥)	31	13	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	114

Physical Properties of steel grade 604

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	-	-			0.44	-
887	766	-	11.3	331		-
397	-	13	31.2			312	122

Heat Treatment of steel grade 604

Heat treated : 1269°C - 1571°C

Technological Curves of steel grade 604

No Curve

Cross Reference Table (Equivalent Grade) of 604

Grade	Standard	Country	Application
1.2604	DIN	Germany	Cold working alloy tool steel
UNS J94604	AISI	USA
J94604	UNS	USA	Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application
J94604	UNS	USA	Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application

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Rfq.: sales@longhaisteel.com

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604