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SAE HEV2 Application:precipitation hardening

Category	Type	Steel grade	Standard	Country
Grades	Special Alloy	SAE HEV2	SAE	USA

Chemical composition % of the ladle analysis of grade SAE HEV2

C(％)	Si(％)	Mn(％)	Cr(％)
0.04	0.08	2.25	16.0

SAE HEV2

Mechanical properties of grade SAE HEV2

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
729 (≥)	862 (≥)	34	22	41	Solution and Aging, Annealing, Ausaging, Q+T,etc	422

Physical properties of grade SAE HEV2

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
748 (≥)	648 (≥)	11	11	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	333
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
333	341	434

SAE HEV2 Range of products

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)*W*L	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade	Standard	Country	Application
HEV2	SAE	USA	Steel for exhaust valves
N07002	SAE	USA	Steel for exhaust valves

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