EV4

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Description

EV4 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: EV4

Category	Type	Steel Grade
Steel Grades	High Alloy	EV4
		S63005
		HNV6
		S65006
		HNV7 (71360)
		HNV8
		S42200
		EV1
		EV2
		EV3
		S63016

Chemical composition(mass fraction)(wt.%) of the EV4

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.15-0.25	0.70-1.00	1.00-1.50	0.045	0.030	20.0-22.0	10.5-12.5
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other	trade names
0.15-0.20					21-12N

Mechanical Properties of steel grade EV4

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)
219 (≥)	921 (≥)	43	32	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	434

Physical Properties of steel grade EV4

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
44	-	-			0.23	-
393	815	-	33.3	211		-
918	-	31	42.2			114	314

Heat Treatment of steel grade EV4

Heat treated : 1172°C - 1463°C

Technological Curves of steel grade EV4

No Curve

Cross Reference Table (Equivalent Grade) of EV4

Grade	Standard	Country	Application
SAE EV4	SAE	USA	precipitation hardening
SBB 410/SBB 42			Boiler and pressure vessel with carbon steel plate and steel grade molybdenum alloy steel plate
SBB 450/SBB 46			Boiler and pressure vessel with carbon steel plate and steel grade molybdenum alloy steel plate
SBB 450M/SBB 46M			Boiler and pressure vessel with carbon steel plate and steel grade molybdenum alloy steel plate
SBB 480/SBB 49			Boiler and pressure vessel with carbon steel plate and steel grade molybdenum alloy steel plate
SBB 480M/SBB 49M			Boiler and pressure vessel with carbon steel plate and steel grade molybdenum alloy steel plate

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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EV4