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

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UNS HEVl

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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
R30155	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C	0.10
Si	0.50
Mn	1.50
P
S
Cr	21.3
Ni	20.0
Mo	3.00

Mechanical Properties

Tensile strength	904～721	σb/MPa
Yield Strength	755	σ 0.2 ≥/MPa
Elongation	99	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	317～925	-
HRC	30	-

Physical Properties

Thermal expansion	23-37	e-6/K
Thermal conductivity	13-35	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3893-2350	째C
Density	1644-3741	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)
HEVl 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