EN 1.3963 (GX5NiS36) Casting Alloy
EN 1.3963 alloy is an iron alloy formulated for controlled thermal expansion. Cited properties are appropriate for the quenched and tempered condition. 1.3963 is the EN numeric designation for this material. GX5NiS36 is the EN chemical designation.
It has the lowest tensile strength among the low-expansion iron alloys in the database.
The graph bars on the material properties cards below compare EN 1.3963 alloy to: low-expansion iron alloys (top), all iron 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
190 GPa 27 x 106 psi
Elongation at Break
29 %
Poisson's Ratio
0.3
Shear Modulus
72 GPa 10 x 106 psi
Shear Strength
290 MPa 42 x 103 psi
Tensile Strength: Ultimate (UTS)
440 MPa 64 x 103 psi
Tensile Strength: Yield (Proof)
310 MPa 45 x 103 psi
Thermal Properties
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1430 °C 2610 °F
Melting Onset (Solidus)
1390 °C 2530 °F
Specific Heat Capacity
460 J/kg-K 0.11 BTU/lb-°F
Thermal Expansion
1.6 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
25 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
4.8 kg CO2/kg material
Embodied Energy
66 MJ/kg 28 x 103 BTU/lb
Embodied Water
110 L/kg 14 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m3
Resilience: Unit (Modulus of Resilience)
260 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
16 points
Thermal Shock Resistance
110 points
Alloy Composition
| Fe | 60.5 to 64.9 | |
| Ni | 35 to 37 | |
| Mo | 0 to 1.0 | |
| Mn | 0 to 0.5 | |
| Si | 0 to 0.5 | |
| S | 0.1 to 0.2 | |
| Cr | 0 to 0.25 | |
| C | 0 to 0.050 | |
| P | 0 to 0.030 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ISO 19960: Cast steels and alloys with special physical properties
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010