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EV9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV9

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UNS EV9

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This page is mainly introduced the EV9 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EV9,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:EV9
Type:Stainless Steels
Country:USA
Standard:UNS
Application:Steel for exhaust valves

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S63009	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.35	0.50
Si	0.30	0.80
Mn		1.00
P		0.045
S		0.030
Cr	12.0	15.0
Ni	12.0	15.0
Mo	0.20	0.50
W	1.50	3.00

Mechanical Properties

Tensile strength	465～206	σb/MPa
Yield Strength	465	σ 0.2 ≥/MPa
Elongation	42	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	239～263	-
HRC	30	-

Physical Properties

Thermal expansion	86-62	e-6/K
Thermal conductivity	41-82	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4052-7940	째C
Density	3989-8251	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)
EV9 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