Type 4 Magnetic Alloy vs. S20910 Stainless Steel
Type 4 magnetic alloy belongs to the nickel alloys classification, while S20910 stainless steel belongs to the iron 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 Type 4 magnetic alloy and the bottom bar is S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 2.0 to 40 | |
| 14 to 39 |
| Fatigue Strength, MPa | 220 to 400 | |
| 310 to 460 |
| Poisson's Ratio | 0.31 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 79 |
| Shear Strength, MPa | 420 to 630 | |
| 500 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1100 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 270 to 1040 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1420 |
| Melting Onset (Solidus), °C | 1370 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 60 | |
| 22 |
| Density, g/cm3 | 8.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 4.8 |
| Embodied Energy, MJ/kg | 140 | |
| 68 |
| Embodied Water, L/kg | 210 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 22 to 200 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 2840 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 12 | |
| 14 |
| Stiffness to Weight: Bending, points | 22 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 35 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 18 to 27 | |
| 24 to 27 |
| Thermal Shock Resistance, points | 21 to 37 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 to 0.3 | |
| 20.5 to 23.5 |
| Cobalt (Co), % | 0 to 0.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 9.5 to 17.5 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0 to 0.8 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 3.5 to 6.0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 79 to 82 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |