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NiFe25Cr20NbTi

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2.4952 2.4955
#NiFe25Cr20NbTi

Description

France AFNOR NiFe25Cr20NbTi Valve Internal Combustion Engines steel (NF-EN 1009-1998) and NiFe25Cr20NbTi Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Valve Steel: NiFe25Cr20NbTi
Category Type Steel Grade Standard Country Application
Steel GradesValve Steel NiFe25Cr20NbTi AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
X55CrMnNiN20-8
1.4875
X50CrMnNiNbN21-9
1.4882
X53CrMnNiNbN21-9
1.4870
X85CrMoV18-2
1.4748
NiCr20TiAI
2.4952

Chemical composition(mass fraction)(wt.%) of the NiFe25Cr20NbTi

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) B(%) Nb(%) Al(%) Ti(%) Other(%)
0.04-0.10 Max 1.00 Max 1.00 Max 0.030 Max 0.015 18.0-21.0 Remain Max 0.008 Nb+Ta 1.0-2.0 0.30-1.00 1.0-2.0 Fe 23.0-28.0

Mechanical Properties of steel grade NiFe25Cr20NbTi

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
579 (≥) 723 (≥) 42 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade NiFe25Cr20NbTi

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
34 - -     0.41 -  
925 733 - 13.3 113   -  
288 - 11 12.2   141 342

Heat Treatment of steel grade NiFe25Cr20NbTi

Heat treated : 1342°C - 1832°C

Technological Curves of steel grade NiFe25Cr20NbTi

Cross Reference Table (Equivalent Grade) of NiFe25Cr20NbTi

Grade Standard Country Application
NiFe25Cr20NbTi DIN Germany Valve steel
NiFe25Cr20NbTi AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
ISO NiFe25Cr20NbTi ISO ISO ISO standard valve nickel base alloy
EN NiFe25Cr20NbTi EN Euronorm Euronorm Stainless Steel
2.4952 2.4955
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