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2.4952

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NiCr20TiAI NiFe25Cr20NbTi
#2.4952

Description

France AFNOR 2.4952 Valve Internal Combustion Engines steel (NF-EN 1009-1998) and 2.4952 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Valve Steel: 2.4952
Category Type Steel Grade Standard Country Application
Steel GradesValve Steel 2.4952 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
1.4871
X55CrMnNiN20-8
1.4875
X50CrMnNiNbN21-9
1.4882
X53CrMnNiNbN21-9
1.4870
X85CrMoV18-2
1.4748
NiCr20TiAI

Chemical composition(mass fraction)(wt.%) of the 2.4952

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%) Co(%) B(%) Al(%) Ti(%) Other(%)
0.04-0.10 Max 1.00 Max 1.00 Max 0.020 Max 0.015 18.0-21.0 Max 65.0 Max 0.20 Max 2.00 Max 0.008 1.00-1.80 1.80-2.70 Fe Max 3.00

Mechanical Properties of steel grade 2.4952

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)
635 (≥) 665 (≥) 24 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 2.4952

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 - -     0.21 -  
246 762 - 44.3 143   -  
898 - 21 44.2   111 244

Heat Treatment of steel grade 2.4952

Heat treated : 1428°C - 1961°C

Technological Curves of steel grade 2.4952

Cross Reference Table (Equivalent Grade) of 2.4952

Grade Standard Country Application
2.4952 DIN Germany The high-temperature and high-strength steel
2.4952 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
NiCr20TiAI NiFe25Cr20NbTi
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