ASTM A387 Grade 11 Steel vs. CR021A Copper
ASTM A387 grade 11 steel belongs to the iron alloys classification, while CR021A copper belongs to the copper alloys. There are 28 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 ASTM A387 grade 11 steel and the bottom bar is CR021A copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 25 | |
| 15 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 73 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 600 | |
| 230 |
| Tensile Strength: Yield (Proof), MPa | 270 to 350 | |
| 140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 200 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1090 |
| Melting Onset (Solidus), °C | 1420 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 390 |
| Thermal Conductivity, W/m-K | 39 | |
| 380 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 98 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.5 | |
| 99 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 31 |
| Density, g/cm3 | 7.8 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 21 | |
| 41 |
| Embodied Water, L/kg | 53 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 130 | |
| 31 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 200 to 320 | |
| 83 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 7.1 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 9.3 |
| Thermal Diffusivity, mm2/s | 11 | |
| 110 |
| Thermal Shock Resistance, points | 15 to 18 | |
| 8.1 |
Alloy Composition
| Bismuth (Bi), % | 0 | |
| 0 to 0.00050 |
| Carbon (C), % | 0.050 to 0.17 | |
| 0 |
| Chromium (Cr), % | 1.0 to 1.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 99.95 to 99.998 |
| Iron (Fe), % | 96.2 to 97.6 | |
| 0 |
| Lead (Pb), % | 0 | |
| 0 to 0.0050 |
| Manganese (Mn), % | 0.4 to 0.65 | |
| 0 |
| Molybdenum (Mo), % | 0.45 to 0.65 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0.0020 to 0.0070 |
| Silicon (Si), % | 0.5 to 0.8 | |
| 0 |
| Silver (Ag), % | 0 | |
| 0 to 0.015 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |