Type 4 Magnetic Alloy vs. SAE-AISI D4 Steel
Type 4 magnetic alloy belongs to the nickel alloys classification, while SAE-AISI D4 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is Type 4 magnetic alloy and the bottom bar is SAE-AISI D4 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 2.0 to 40 | |
| 8.4 to 15 |
| Fatigue Strength, MPa | 220 to 400 | |
| 310 to 920 |
| Poisson's Ratio | 0.31 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 74 |
| Shear Strength, MPa | 420 to 630 | |
| 460 to 1210 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1100 | |
| 760 to 2060 |
| Tensile Strength: Yield (Proof), MPa | 270 to 1040 | |
| 470 to 1540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 270 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1430 |
| Melting Onset (Solidus), °C | 1370 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 4.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 5.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 60 | |
| 8.0 |
| Density, g/cm3 | 8.8 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 3.3 |
| Embodied Energy, MJ/kg | 140 | |
| 49 |
| Embodied Water, L/kg | 210 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 22 to 200 | |
| 100 to 160 |
| Stiffness to Weight: Axial, points | 12 | |
| 14 |
| Stiffness to Weight: Bending, points | 22 | |
| 25 |
| Strength to Weight: Axial, points | 19 to 35 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 18 to 27 | |
| 24 to 47 |
| Thermal Shock Resistance, points | 21 to 37 | |
| 23 to 63 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 2.1 to 2.4 |
| Chromium (Cr), % | 0 to 0.3 | |
| 11 to 13 |
| Cobalt (Co), % | 0 to 0.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 to 0.25 |
| Iron (Fe), % | 9.5 to 17.5 | |
| 80.6 to 86.3 |
| Manganese (Mn), % | 0 to 0.8 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 3.5 to 6.0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 79 to 82 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.0 |