EN 2.4851 (NiCr23Fe) Nickel Alloy
EN 2.4851 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 2.4851 is the EN numeric designation for this material. NiCr23Fe is the EN chemical designation.
It has a moderately high heat capacity among wrought nickels. In addition, it has a moderately low base cost and a moderately low tensile strength.
The graph bars on the material properties cards below compare EN 2.4851 nickel to: wrought nickels (top), all nickel alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
190
Elastic (Young's, Tensile) Modulus
200 GPa 28 x 106 psi
Elongation at Break
34 %
Fatigue Strength
170 MPa 24 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
430 MPa 63 x 103 psi
Tensile Strength: Ultimate (UTS)
650 MPa 94 x 103 psi
Tensile Strength: Yield (Proof)
230 MPa 33 x 103 psi
Thermal Properties
Latent Heat of Fusion
320 J/g
Maximum Temperature: Mechanical
1200 °C 2190 °F
Melting Completion (Liquidus)
1360 °C 2480 °F
Melting Onset (Solidus)
1310 °C 2400 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
11 W/m-K 6.5 BTU/h-ft-°F
Thermal Expansion
14 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.6 % IACS
Otherwise Unclassified Properties
Base Metal Price
49 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
8.1 kg CO2/kg material
Embodied Energy
120 MJ/kg 50 x 103 BTU/lb
Embodied Water
280 L/kg 33 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
170 MJ/m3
Resilience: Unit (Modulus of Resilience)
130 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
22 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
2.9 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Ni | 58 to 63 | |
| Cr | 21 to 25 | |
| Fe | 7.7 to 18 | |
| Al | 1.0 to 1.7 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 0.5 | |
| Ti | 0 to 0.5 | |
| Cu | 0 to 0.5 | |
| C | 0.030 to 0.1 | |
| P | 0 to 0.020 | |
| S | 0 to 0.015 | |
| B | 0 to 0.0060 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
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