S20910 Stainless Steel vs. ASTM A387 Grade 2 Steel
Both S20910 stainless steel and ASTM A387 grade 2 steel are iron alloys. They have 59% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is S20910 stainless steel and the bottom bar is ASTM A387 grade 2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 290 | |
| 140 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 25 |
| Fatigue Strength, MPa | 310 to 460 | |
| 190 to 250 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 500 to 570 | |
| 300 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 470 to 550 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 260 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 420 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1470 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 45 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 2.6 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 68 | |
| 20 |
| Embodied Water, L/kg | 180 | |
| 50 |
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 2.4 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 98 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 180 to 320 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 16 to 20 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 17 to 19 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 12 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 14 to 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0.050 to 0.21 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 0.5 to 0.8 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 97.1 to 98.3 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0.55 to 0.8 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0.45 to 0.6 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 0 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.75 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 |