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NiFe25Cr20NbTi chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NiFe25Cr20NbTi

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AFNOR NiFe25Cr20NbTi

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This page is mainly introduced the NiFe25Cr20NbTi chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of NiFe25Cr20NbTi,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Valve steels and alloys for internal combustion engines

Steel Garde:NiFe25Cr20NbTi
Type:Stainless Steels
Country:France
Standard:AFNOR
Standard Number:

ITEM Standard Number Descriptions

1 NF EN 10090 Valve steels and alloys for internal combustion engines
Application:Valve steels and alloys for internal combustion engines

ITEM	Standard Number	Descriptions
1	NF EN 10090	Valve steels and alloys for internal combustion engines

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
2.4955	AFNOR	France
NiFe25Cr20NbTi	ISO	International

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		1.00
P		0.030
S		0.015
Cr	18.00	21.00
Ni		remaining
Mo
Al	0.30	1.00
Ti	1.00	2.00
Fe	23.00	28.00
B		0.008
Nb+Ta	1.00	2.00

Mechanical Properties

Tensile strength	746～895	σb/MPa
Yield Strength	877	σ 0.2 ≥/MPa
Elongation	85	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	735～721	-
HRC	30	-

Physical Properties

Thermal expansion	16-90	e-6/K
Thermal conductivity	87-45	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2759-2526	째C
Density	6143-3964	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)
NiFe25Cr20NbTi 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