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NV4(3140) chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NV4(3140)

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UNS NV4(3140)

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This page is mainly introduced the NV4(3140) chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NV4(3140),such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel for intake valves

Steel Garde:NV4(3140)
Type:Stainless Steels
Country:USA
Standard:UNS
Application:Steel for intake valves

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.38	0.43
Si	0.15	0.30
Mn	0.70	0.90
P		0.04
S		0.04
Cr	0.35	0.65
Ni	1.10	1.40

Mechanical Properties

Tensile strength	391～291	σb/MPa
Yield Strength	096	σ 0.2 ≥/MPa
Elongation	09	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	482～052	-
HRC	30	-

Physical Properties

Thermal expansion	38-93	e-6/K
Thermal conductivity	00-66	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9334-7071	째C
Density	2666-0133	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)
NV4(3140) 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