AWS E330 vs. AWS E308H
Both AWS E330 and AWS E308H are iron alloys. Both are furnished in the as-welded condition. They have 75% of their average alloy composition in common.
For each property being compared, the top bar is AWS E330 and the bottom bar is AWS E308H.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 29 | |
| 40 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 290 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1420 |
| Melting Onset (Solidus), °C | 1350 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 12 | |
| 16 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.7 | |
| 2.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.9 | |
| 2.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 16 |
| Density, g/cm3 | 8.1 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 5.4 | |
| 3.2 |
| Embodied Energy, MJ/kg | 75 | |
| 46 |
| Embodied Water, L/kg | 180 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 17 | |
| 21 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 20 | |
| 22 |
| Strength to Weight: Bending, points | 19 | |
| 21 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 4.2 |
| Thermal Shock Resistance, points | 16 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0.18 to 0.25 | |
| 0.040 to 0.080 |
| Chromium (Cr), % | 14 to 17 | |
| 18 to 21 |
| Copper (Cu), % | 0 to 0.75 | |
| 0 to 0.75 |
| Iron (Fe), % | 40.7 to 51.8 | |
| 62.9 to 72.5 |
| Manganese (Mn), % | 1.0 to 2.5 | |
| 0.5 to 2.5 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0 to 0.75 |
| Nickel (Ni), % | 33 to 37 | |
| 9.0 to 11 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |