ASTM A387 Grade 12 Steel vs. AWS E330H
Both ASTM A387 grade 12 steel and AWS E330H are iron alloys. They have 48% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 12 steel and the bottom bar is AWS E330H.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 25 | |
| 11 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 520 | |
| 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 290 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1400 |
| Melting Onset (Solidus), °C | 1420 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 44 | |
| 12 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 1.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.8 | |
| 30 |
| Density, g/cm3 | 7.8 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 5.4 |
| Embodied Energy, MJ/kg | 21 | |
| 76 |
| Embodied Water, L/kg | 51 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 2.7 | |
| 17 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 24 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 22 |
| Thermal Diffusivity, mm2/s | 12 | |
| 3.2 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0.050 to 0.17 | |
| 0.35 to 0.45 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 14 to 17 |
| Copper (Cu), % | 0 | |
| 0 to 0.75 |
| Iron (Fe), % | 97 to 98.2 | |
| 40.5 to 51.7 |
| Manganese (Mn), % | 0.4 to 0.65 | |
| 1.0 to 2.5 |
| Molybdenum (Mo), % | 0.45 to 0.6 | |
| 0 to 0.75 |
| Nickel (Ni), % | 0 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.030 |