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NiFe25Cr20NbTi

Description

France AFNOR NF EN 10090, NiFe25Cr20NbTi Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NiFe25Cr20NbTi
Category Class Grade Standard Country Application
Steel GradesSpecialsteel NiFe25Cr20NbTi AFNOR France Valve steels and alloys for internal combustion engines

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

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

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)
833 (≥) 368 (≥) 12 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

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
13 - -     0.14 -  
314 356 - 33.3 442   -  
432 - 44 24.2   414 431

Heat Treatment of steel grade NiFe25Cr20NbTi

Heat treated : 1422°C - 1329°C

Technological Curves of steel grade NiFe25Cr20NbTi

Cross Reference Table (Equivalent Grade) of NiFe25Cr20NbTi

Grade Standard Country Application
NiFe25Cr20NbTi
NiFe25Cr20NbTi
NiFe25Cr20NbTi

Relevant standard of NiFe25Cr20NbTi

NF EN 10090 Valve steels and alloys for internal combustion engines NF-EN-10090.pdf

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