AWS ER90S-B3 vs. ASTM Grade HP Steel
Both AWS ER90S-B3 and ASTM grade HP steel are iron alloys. They have 40% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is AWS ER90S-B3 and the bottom bar is ASTM grade HP steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 19 | |
| 5.1 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 690 | |
| 490 |
| Tensile Strength: Yield (Proof), MPa | 620 | |
| 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 320 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1370 |
| Melting Onset (Solidus), °C | 1420 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 40 | |
| 12 |
| Thermal Expansion, µm/m-K | 13 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 4.1 | |
| 34 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 5.8 |
| Embodied Energy, MJ/kg | 24 | |
| 82 |
| Embodied Water, L/kg | 60 | |
| 220 |
Common Calculations
| PREN (Pitting Resistance) | 6.0 | |
| 27 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 21 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1000 | |
| 170 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 25 | |
| 17 |
| Strength to Weight: Bending, points | 22 | |
| 17 |
| Thermal Diffusivity, mm2/s | 11 | |
| 3.2 |
| Thermal Shock Resistance, points | 20 | |
| 11 |
Alloy Composition
| Carbon (C), % | 0.070 to 0.12 | |
| 0.35 to 0.75 |
| Chromium (Cr), % | 2.3 to 2.7 | |
| 24 to 28 |
| Copper (Cu), % | 0 to 0.35 | |
| 0 |
| Iron (Fe), % | 93.5 to 95.9 | |
| 29.2 to 42.7 |
| Manganese (Mn), % | 0.4 to 0.7 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.9 to 1.2 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 0.2 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.4 to 0.7 | |
| 0 to 2.5 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.040 |
| Residuals, % | 0 to 0.5 | |
| 0 |