S20910 Stainless Steel vs. ASTM A372 Grade M Steel
Both S20910 stainless steel and ASTM A372 grade M steel are iron alloys. They have 63% 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 A372 grade M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 to 290 | |
| 240 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 18 to 21 |
| Fatigue Strength, MPa | 310 to 460 | |
| 450 to 520 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 500 to 570 | |
| 510 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 810 to 910 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 660 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 450 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 46 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 5.0 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 2.0 |
| Embodied Energy, MJ/kg | 68 | |
| 27 |
| Embodied Water, L/kg | 180 | |
| 61 |
Common Calculations
| PREN (Pitting Resistance) | 34 | |
| 3.4 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 1140 to 1580 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 29 to 32 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 3.6 | |
| 12 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 24 to 27 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.23 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 1.5 to 2.0 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 92.5 to 95.1 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0.2 to 0.4 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 2.8 to 3.9 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 to 0.080 |