AISI 440A Stainless Steel vs. AWS E120C-K4
Both AISI 440A stainless steel and AWS E120C-K4 are iron alloys. They have 83% 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 AISI 440A stainless steel and the bottom bar is AWS E120C-K4.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 5.0 to 20 | |
| 17 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 1790 | |
| 950 |
| Tensile Strength: Yield (Proof), MPa | 420 to 1650 | |
| 840 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 23 | |
| 41 |
| Thermal Expansion, µm/m-K | 10 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 9.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 3.5 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.7 |
| Embodied Energy, MJ/kg | 31 | |
| 23 |
| Embodied Water, L/kg | 120 | |
| 54 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 120 | |
| 160 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 65 | |
| 34 |
| Strength to Weight: Bending, points | 23 to 43 | |
| 27 |
| Thermal Diffusivity, mm2/s | 6.2 | |
| 11 |
| Thermal Shock Resistance, points | 26 to 65 | |
| 28 |
Alloy Composition
| Carbon (C), % | 0.6 to 0.75 | |
| 0 to 0.15 |
| Chromium (Cr), % | 16 to 18 | |
| 0.15 to 0.65 |
| Copper (Cu), % | 0 | |
| 0 to 0.35 |
| Iron (Fe), % | 78.4 to 83.4 | |
| 92.1 to 98.4 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.75 to 2.3 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0.25 to 0.65 |
| Nickel (Ni), % | 0 | |
| 0.5 to 2.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |
| Vanadium (V), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 | |
| 0 to 0.5 |