S20910 Stainless Steel vs. Type 4 Magnetic Alloy
S20910 stainless steel belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S20910 stainless steel and the bottom bar is Type 4 magnetic alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 14 to 39 | |
| 2.0 to 40 |
| Fatigue Strength, MPa | 310 to 460 | |
| 220 to 400 |
| Poisson's Ratio | 0.28 | |
| 0.31 |
| Shear Modulus, GPa | 79 | |
| 73 |
| Shear Strength, MPa | 500 to 570 | |
| 420 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 780 to 940 | |
| 620 to 1100 |
| Tensile Strength: Yield (Proof), MPa | 430 to 810 | |
| 270 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 1080 | |
| 900 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1420 |
| Melting Onset (Solidus), °C | 1380 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 440 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 60 |
| Density, g/cm3 | 7.8 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 4.8 | |
| 10 |
| Embodied Energy, MJ/kg | 68 | |
| 140 |
| Embodied Water, L/kg | 180 | |
| 210 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 260 | |
| 22 to 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 1640 | |
| 190 to 2840 |
| Stiffness to Weight: Axial, points | 14 | |
| 12 |
| Stiffness to Weight: Bending, points | 25 | |
| 22 |
| Strength to Weight: Axial, points | 28 to 33 | |
| 19 to 35 |
| Strength to Weight: Bending, points | 24 to 27 | |
| 18 to 27 |
| Thermal Shock Resistance, points | 17 to 21 | |
| 21 to 37 |
Alloy Composition
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.050 |
| Chromium (Cr), % | 20.5 to 23.5 | |
| 0 to 0.3 |
| Cobalt (Co), % | 0 | |
| 0 to 0.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 52.1 to 62.1 | |
| 9.5 to 17.5 |
| Manganese (Mn), % | 4.0 to 6.0 | |
| 0 to 0.8 |
| Molybdenum (Mo), % | 1.5 to 3.0 | |
| 3.5 to 6.0 |
| Nickel (Ni), % | 11.5 to 13.5 | |
| 79 to 82 |
| Niobium (Nb), % | 0.1 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.020 |
| Vanadium (V), % | 0.1 to 0.3 | |
| 0 |