ASTM A387 Grade 21L Class 1 vs. C15500 Copper
ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while C15500 copper belongs to the copper alloys. There are 29 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 21L class 1 and the bottom bar is C15500 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Elongation at Break, % | 21 | |
| 3.0 to 37 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 74 | |
| 43 |
| Shear Strength, MPa | 310 | |
| 190 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 280 to 550 |
| Tensile Strength: Yield (Proof), MPa | 230 | |
| 130 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 480 | |
| 200 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1080 |
| Melting Onset (Solidus), °C | 1430 | |
| 1080 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 390 |
| Thermal Conductivity, W/m-K | 41 | |
| 350 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
| 90 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 91 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.1 | |
| 33 |
| Density, g/cm3 | 7.9 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 2.7 |
| Embodied Energy, MJ/kg | 23 | |
| 42 |
| Embodied Water, L/kg | 62 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 | |
| 15 to 84 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 | |
| 72 to 1210 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 18 | |
| 8.6 to 17 |
| Strength to Weight: Bending, points | 18 | |
| 11 to 17 |
| Thermal Diffusivity, mm2/s | 11 | |
| 100 |
| Thermal Shock Resistance, points | 14 | |
| 9.8 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Chromium (Cr), % | 2.8 to 3.3 | |
| 0 |
| Copper (Cu), % | 0 | |
| 99.75 to 99.853 |
| Iron (Fe), % | 94.4 to 96.1 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 0.080 to 0.13 |
| Manganese (Mn), % | 0.3 to 0.6 | |
| 0 |
| Molybdenum (Mo), % | 0.9 to 1.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0.040 to 0.080 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Silver (Ag), % | 0 | |
| 0.027 to 0.1 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.2 |