ASTM Grade LCA Steel vs. AWS BMg-1
ASTM grade LCA steel belongs to the iron alloys classification, while AWS BMg-1 belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is ASTM grade LCA steel and the bottom bar is AWS BMg-1.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 47 |
| Elongation at Break, % | 27 | |
| 3.8 |
| Fatigue Strength, MPa | 170 | |
| 72 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 18 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 180 |
| Tensile Strength: Yield (Proof), MPa | 230 | |
| 110 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 350 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 130 |
| Melting Completion (Liquidus), °C | 1460 | |
| 600 |
| Melting Onset (Solidus), °C | 1410 | |
| 440 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 980 |
| Thermal Conductivity, W/m-K | 49 | |
| 76 |
| Thermal Expansion, µm/m-K | 12 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 55 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 12 |
| Density, g/cm3 | 7.8 | |
| 1.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 22 |
| Embodied Energy, MJ/kg | 19 | |
| 160 |
| Embodied Water, L/kg | 46 | |
| 980 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 5.9 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 | |
| 120 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 66 |
| Strength to Weight: Axial, points | 18 | |
| 27 |
| Strength to Weight: Bending, points | 18 | |
| 39 |
| Thermal Diffusivity, mm2/s | 14 | |
| 43 |
| Thermal Shock Resistance, points | 16 | |
| 10 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 8.3 to 9.7 |
| Beryllium (Be), % | 0 | |
| 0.00020 to 0.00080 |
| Carbon (C), % | 0 to 0.25 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.050 |
| Iron (Fe), % | 96.9 to 100 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0 | |
| 86.1 to 89.8 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0.15 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.2 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.050 |
| Sulfur (S), % | 0 to 0.045 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 1.7 to 2.3 |
| Residuals, % | 0 to 1.0 | |
| 0 to 0.3 |