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HEV7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HEV7

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UNS HEV7

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This page is mainly introduced the HEV7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of HEV7,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:HEV7
Type:Stainless Steels
Country:USA
Standard:UNS
Application:Steel for exhaust valves

Relevant products:

S66286 round bar

IncoloyA-286 / GH 2132

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 959 S66286	SAE	USA
S66286	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.08
Si		0.70
Mn		1.50
P
S
Cr		14.75
Ni		26.0
Mo		1.25

Mechanical Properties

Tensile strength	011～339	σb/MPa
Yield Strength	646	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	869～940	-
HRC	30	-

Physical Properties

Thermal expansion	20-82	e-6/K
Thermal conductivity	48-54	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4111-4474	째C
Density	0451-1395	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)
HEV7 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