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2.4955

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NiFe25Cr20NbTi Fe-Ni36
#NiFe25Cr20NbTi #2-4955

Description

France AFNOR NF EN 10090, 2.4955 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2.4955
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 2.4955 AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the 2.4955

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 2.4955

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)
624 (≥) 639 (≥) 11 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 2.4955

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
24 - -     0.33 -  
329 438 - 24.3 333   -  
786 - 11 21.2   334 442

Heat Treatment of steel grade 2.4955

Heat treated : 1868°C - 1127°C

Technological Curves of steel grade 2.4955

Cross Reference Table (Equivalent Grade) of 2.4955

Grade Standard Country Application
NiFe25Cr20NbTi
NiFe25Cr20NbTi
NiFe25Cr20NbTi

Relevant standard of 2.4955

NF EN 10090 Valve steels and alloys for internal combustion engines NF-EN-10090.pdf
NiFe25Cr20NbTi Fe-Ni36
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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