EV2

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Description

EV2 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: EV2

Category	Type	Steel Grade
Steel Grades	High Alloy	EV2
		S65007
		HNV4
		HNV5
		S63005
		HNV6
		S65006
		HNV7 (71360)
		HNV8
		S42200
		EV1

Chemical composition(mass fraction)(wt.%) of the EV2

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.40	0.80	4.30			24.0	3.80
Mo	Al	Cu	Nb	Ti	V	Ce
1.40
N	Co	Pb	B	Other	trade names
					TXCR

Mechanical Properties of steel grade EV2

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)
547 (≥)	552 (≥)	14	41	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	222

Physical Properties of steel grade EV2

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
23	-	-			0.11	-
175	499	-	22.3	341		-
421	-	13	22.2			342	132

Heat Treatment of steel grade EV2

Heat treated : 1769°C - 1953°C

Technological Curves of steel grade EV2

No Curve

Cross Reference Table (Equivalent Grade) of EV2

Grade	Standard	Country	Application
SAE EV2	SAE	USA	precipitation hardening
SAE HEV2	SAE	USA	precipitation hardening
SEV245		China	China Taiwan Structural steel
SEV295		China	China Taiwan Structural steel
SEV 245/SEV 25			Used for pressure vessels in normal temperature, high strength steel plate steel grade

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EV2