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NiFe25Cr20NbTi Application:Valve steel
Category Type Steel grade Standard Country
Grades Special Alloy NiFe25Cr20NbTi DIN Germany

Chemical composition % of the ladle analysis of grade NiFe25Cr20NbTi

C(%) Si(%) Mn(%) P(%) S(%) Cr(%)
0.10 Max 1.00 Max 1.00 Max 0.030 Max 0.015 18.00-21.00
NiFe25Cr20NbTi
Mechanical properties of grade NiFe25Cr20NbTi
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
634 (≥) 783 (≥) 14 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 424
Physical properties of grade NiFe25Cr20NbTi
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
545 (≥) 524 (≥) 21 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
694 825 771
NiFe25Cr20NbTi Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
NiFe25Cr20NbTi DIN Germany
Valve steels and alloys for internal combustion engines
2.4955 DIN Germany
Valve steels and alloys for internal combustion engines
NiFe25Cr20NbTi DIN Germany
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

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