ASTM Grade HN Steel vs. C71580 Copper-nickel
ASTM grade HN steel belongs to the iron alloys classification, while C71580 copper-nickel belongs to the copper alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is C71580 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 | |
| 75 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 140 |
| Elongation at Break, % | 9.0 | |
| 40 |
| Poisson's Ratio | 0.28 | |
| 0.33 |
| Shear Modulus, GPa | 77 | |
| 51 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 260 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1180 |
| Melting Onset (Solidus), °C | 1350 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 400 |
| Thermal Conductivity, W/m-K | 13 | |
| 39 |
| Thermal Expansion, µm/m-K | 16 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 26 | |
| 41 |
| Density, g/cm3 | 7.9 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 4.6 | |
| 5.1 |
| Embodied Energy, MJ/kg | 66 | |
| 74 |
| Embodied Water, L/kg | 180 | |
| 280 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 8.5 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 17 | |
| 10 |
| Strength to Weight: Bending, points | 18 | |
| 12 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 11 |
| Thermal Shock Resistance, points | 11 | |
| 11 |
Alloy Composition
| Carbon (C), % | 0.2 to 0.5 | |
| 0 to 0.070 |
| Chromium (Cr), % | 19 to 23 | |
| 0 |
| Copper (Cu), % | 0 | |
| 65.5 to 71 |
| Iron (Fe), % | 44.9 to 57.8 | |
| 0 to 0.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 0.3 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 23 to 27 | |
| 29 to 33 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 2.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.040 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 | |
| 0 to 0.5 |