EN 1.4889 (GX40NiCrNb45-35) Casting Alloy
EN 1.4889 cast nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 1.4889 is the EN numeric designation for this material. GX40NiCrNb45-35 is the EN chemical designation.
It has a moderately low ductility and a moderately high heat capacity among cast nickels.
The graph bars on the material properties cards below compare EN 1.4889 cast nickel to: cast 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
Elastic (Young's, Tensile) Modulus
200 GPa 29 x 106 psi
Elongation at Break
3.4 %
Fatigue Strength
110 MPa 15 x 103 psi
Poisson's Ratio
0.27
Shear Modulus
79 GPa 11 x 106 psi
Tensile Strength: Ultimate (UTS)
500 MPa 73 x 103 psi
Tensile Strength: Yield (Proof)
270 MPa 39 x 103 psi
Thermal Properties
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
1160 °C 2120 °F
Melting Completion (Liquidus)
1360 °C 2490 °F
Melting Onset (Solidus)
1320 °C 2400 °F
Specific Heat Capacity
480 J/kg-K 0.12 BTU/lb-°F
Thermal Expansion
14 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
55 % relative
Density
7.9 g/cm3 500 lb/ft3
Embodied Carbon
8.5 kg CO2/kg material
Embodied Energy
120 MJ/kg 53 x 103 BTU/lb
Embodied Water
280 L/kg 34 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
14 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Thermal Shock Resistance
13 points
Alloy Composition
| Ni | 42 to 46 | |
| Cr | 32.5 to 37.5 | |
| Fe | 10.5 to 21.2 | |
| Si | 1.5 to 2.0 | |
| Nb | 1.5 to 2.0 | |
| Mn | 1.0 to 1.5 | |
| C | 0.35 to 0.45 | |
| P | 0 to 0.040 | |
| S | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10295: Heat Resistant Steel Castings
Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998