EN 2.4878 Nickel vs. ASTM A227 Spring Steel
EN 2.4878 nickel belongs to the nickel alloys classification, while ASTM A227 spring steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 2.4878 nickel and the bottom bar is ASTM A227 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 13 to 17 | |
| 12 |
| Fatigue Strength, MPa | 400 to 410 | |
| 900 to 1160 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 72 |
| Shear Strength, MPa | 750 to 760 | |
| 1030 to 1330 |
| Tensile Strength: Ultimate (UTS), MPa | 1210 to 1250 | |
| 1720 to 2220 |
| Tensile Strength: Yield (Proof), MPa | 740 to 780 | |
| 1430 to 1850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1030 | |
| 400 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1450 |
| Melting Onset (Solidus), °C | 1320 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 470 |
| Thermal Conductivity, W/m-K | 11 | |
| 52 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 1.8 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 1.4 |
| Embodied Energy, MJ/kg | 150 | |
| 19 |
| Embodied Water, L/kg | 370 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 180 | |
| 200 to 260 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 41 to 42 | |
| 61 to 79 |
| Strength to Weight: Bending, points | 31 | |
| 41 to 48 |
| Thermal Diffusivity, mm2/s | 2.8 | |
| 14 |
| Thermal Shock Resistance, points | 37 to 39 | |
| 55 to 71 |
Alloy Composition
| Aluminum (Al), % | 1.2 to 1.6 | |
| 0 |
| Boron (B), % | 0.010 to 0.015 | |
| 0 |
| Carbon (C), % | 0.030 to 0.070 | |
| 0.45 to 0.85 |
| Chromium (Cr), % | 23 to 25 | |
| 0 |
| Cobalt (Co), % | 19 to 21 | |
| 0 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 |
| Iron (Fe), % | 0 to 1.0 | |
| 97.4 to 99.1 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.3 to 1.3 |
| Molybdenum (Mo), % | 1.0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 43.6 to 52.2 | |
| 0 |
| Niobium (Nb), % | 0.7 to 1.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.0070 | |
| 0 to 0.050 |
| Tantalum (Ta), % | 0 to 0.050 | |
| 0 |
| Titanium (Ti), % | 2.8 to 3.2 | |
| 0 |
| Zirconium (Zr), % | 0.030 to 0.070 | |
| 0 |