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2.4955

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NiFe25Cr20NbTi 65Si7
#2.4955

Description

Germany FED 2.4955 Valve steel and 2.4955 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 2.4955
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 2.4955 FED Germany Valve steel
1.4871
1.4873
X45CrNiW18-9
X55CrMnNiN20-8
1.4875
1.4881
X70CrMnNiN21-6
1.4882
X50CrMnNiNbN21-9
NiFe25Cr20NbTi

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％)
0.10 Max 1.00 Max 1.00 Max 0.030 Max 0.015 18.00-21.00

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)
633 (≥) 941 (≥) 42 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

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
41 - -     0.22 -  
766 223 - 44.3 232   -  
146 - 33 31.2   114 131

Heat Treatment of steel grade 2.4955

Heat treated : 1946°C - 1514°C

Technological Curves of steel grade 2.4955

Cross Reference Table (Equivalent Grade) of 2.4955

Grade Standard Country Application
2.4955 FED Germany Valve steel
2.4955 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
NiFe25Cr20NbTi 65Si7
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Jiangyou Longhai Special Steel Co.,Ltd.
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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