S20910 Stainless Steel vs. SAE-AISI D4 Steel
Both S20910 stainless steel and SAE-AISI D4 steel 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 S20910 stainless steel and the bottom bar is SAE-AISI D4 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 8.4 to 15 |
| Fatigue Strength, MPa | 310 to 460 | |
| 310 to 920 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 74 |
| Shear Strength, MPa | 500 to 570 | |
| 460 to 1210 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 760 to 2060 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 470 to 1540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 270 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1430 |
| Melting Onset (Solidus), °C | 1380 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 13 | |
| 31 |
| Thermal Expansion, µm/m-K | 16 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 8.0 |
| Density, g/cm3 | 7.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 3.3 |
| Embodied Energy, MJ/kg | 68 | |
| 49 |
| Embodied Water, L/kg | 180 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 100 to 160 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 24 to 47 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 8.3 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 23 to 63 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 2.1 to 2.4 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 11 to 13 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 80.6 to 86.3 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 0 to 0.3 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 to 1.0 |