AISI 304 Stainless Steel vs. AWS ER70S-A1
Both AISI 304 stainless steel and AWS ER70S-A1 are iron alloys. They have 71% of their average alloy composition in common. There are 27 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 AISI 304 stainless steel and the bottom bar is AWS ER70S-A1.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 8.0 to 43 | |
| 22 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 1180 | |
| 590 |
| Tensile Strength: Yield (Proof), MPa | 230 to 860 | |
| 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 260 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1460 |
| Melting Onset (Solidus), °C | 1400 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 16 | |
| 50 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 2.5 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.0 | |
| 1.5 |
| Embodied Energy, MJ/kg | 43 | |
| 20 |
| Embodied Water, L/kg | 150 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 250 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 1870 | |
| 540 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 42 | |
| 21 |
| Strength to Weight: Bending, points | 20 to 32 | |
| 20 |
| Thermal Diffusivity, mm2/s | 4.2 | |
| 14 |
| Thermal Shock Resistance, points | 12 to 25 | |
| 17 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.12 |
| Chromium (Cr), % | 18 to 20 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.35 |
| Iron (Fe), % | 66.5 to 74 | |
| 96.1 to 99.3 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 1.3 |
| Molybdenum (Mo), % | 0 | |
| 0.4 to 0.65 |
| Nickel (Ni), % | 8.0 to 10.5 | |
| 0 to 0.2 |
| Nitrogen (N), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.75 | |
| 0.3 to 0.7 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Residuals, % | 0 | |
| 0 to 0.5 |