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HEV8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HEV8

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UNS HEV8

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This page is mainly introduced the HEV8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HEV8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for exhaust valves

Steel Garde:HEV8
Type:Stainless Steels
Country:USA
Standard:UNS
Application:Steel for exhaust valves

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
N07032	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.03	0.06
Si		0.20
Mn		0.20
P		0.015
S		0.015
Cr	22.3	22.9
Ni	55.0	58.0
Mo	1.70	2.30

Mechanical Properties

Tensile strength	987～140	σb/MPa
Yield Strength	616	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	596～742	-
HRC	30	-

Physical Properties

Thermal expansion	78-37	e-6/K
Thermal conductivity	96-18	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1935-3104	째C
Density	1538-0100	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
HEV8 Stainless Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk