EN 2.4951 (NiCr20Ti) Nickel Alloy
Superalloys & Heat-Resistant Alloys
Property Overview
Density8.5g/cm³
Elastic Modulus190GPa
Tensile Strength750MPa
Yield Strength240MPa
Brinell Hardness230HB
Maximum Service Temperature1150°C
Chemical Composition
C
0.080 to 0.15%
CR
18 to 21%
NI
65.4 to 81.7%
MN
0 to 1.0%
SI
0 to 1.0%
P
0 to 0.020%
S
0 to 0.015%
CU
0 to 0.5%
TI
0.2 to 0.6%
AL
0 to 0.3%
CO
0 to 5.0%
FE
0 to 5.0%
Mechanical
A - Min. elongation at fracture (%) (+AT)
30
+AT
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
34 %
Fatigue Strength
200 MPa
Poisson's Ratio
0.29
R p0.2 0.2% proof strength (MPa) (+AT)
240
+AT
Rm - Tensile strength (MPa) (+AT)
650-850
+AT
Shear Modulus
76 GPa
Shear Strength
500 MPa
Tensile Strength: Ultimate (UTS)
750 MPa
Tensile Strength: Yield (Proof)
270 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
200
Brinell hardness (HB): (+AT)
230
+AT
Physical
Density
8.5 g/cm 3
Thermal
Latent Heat of Fusion
320 J/g
Maximum Temperature: Mechanical
1150 °C
Melting Completion (Liquidus)
1360 °C
Melting Onset (Solidus)
1310 °C
Specific Heat Capacity
460 J/kg-K
Thermal Conductivity
12 W/m-K
Thermal Diffusivity
3.1 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
23 points
Electrical
Electrical Conductivity: Equal Volume
1.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.7 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
200 MJ/m 3
Resilience: Unit (Modulus of Resilience)
190 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
25 points
Strength to Weight: Bending
22 points
Environmental
Base Metal Price
60 % relative
Embodied Carbon
9.3 kg CO 2 /kg material
Embodied Energy
130 MJ/kg
Embodied Energy
130 MJ/kg 56 x 10 3 BTU/lb
Embodied Water
280 L/kg
Embodied Water
280 L/kg 34 gal/lb
Registered Designations & Aliases
2.49512.4951EN 2.4951 (NiCr20Ti) Nickel AlloyNiCr20TiNiCr20Ti
Standards
EN 10095 EN 10095: 1999 Heat Resisting Steels and Nickel Alloys
EN 10095 EN 10095: Heat resisting steels and nickel alloys
EN 10095 EN 10095: Heat resisting steels and nickel alloys Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971 Nickel Alloys, Ulrich Heubner (editor), 1998