ASTM A302 Alloy Steel vs. AWS E312
Both ASTM A302 alloy steel and AWS E312 are iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is AWS E312.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 to 23 | |
| 25 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 73 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 590 to 620 | |
| 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 310 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1410 |
| Melting Onset (Solidus), °C | 1420 | |
| 1360 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.4 to 3.0 | |
| 20 |
| Density, g/cm3 | 7.8 to 7.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 1.5 to 1.6 | |
| 3.6 |
| Embodied Energy, MJ/kg | 20 to 21 | |
| 52 |
| Embodied Water, L/kg | 48 to 50 | |
| 200 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 22 | |
| 27 |
| Strength to Weight: Bending, points | 20 to 21 | |
| 24 |
| Thermal Shock Resistance, points | 17 to 18 | |
| 18 |