Type 4 Magnetic Alloy vs. Type 3 Magnetic Alloy
Both Type 4 magnetic alloy and Type 3 magnetic alloy are nickel alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is Type 4 magnetic alloy and the bottom bar is Type 3 magnetic alloy.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
180 |
Elongation at Break, % | 2.0 to 40 | |
43 |
Fatigue Strength, MPa | 220 to 400 | |
170 |
Poisson's Ratio | 0.31 | |
0.31 |
Shear Modulus, GPa | 73 | |
70 |
Shear Strength, MPa | 420 to 630 | |
380 |
Tensile Strength: Ultimate (UTS), MPa | 620 to 1100 | |
550 |
Tensile Strength: Yield (Proof), MPa | 270 to 1040 | |
210 |
Thermal Properties
Curie Temperature, °C | 460 | |
400 |
Latent Heat of Fusion, J/g | 290 | |
290 |
Maximum Temperature: Mechanical, °C | 900 | |
910 |
Melting Completion (Liquidus), °C | 1420 | |
1370 |
Melting Onset (Solidus), °C | 1370 | |
1320 |
Specific Heat Capacity, J/kg-K | 440 | |
450 |
Thermal Expansion, µm/m-K | 11 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
2.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
3.0 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 60 | |
55 |
Density, g/cm3 | 8.8 | |
8.7 |
Embodied Carbon, kg CO2/kg material | 10 | |
8.7 |
Embodied Energy, MJ/kg | 140 | |
120 |
Embodied Water, L/kg | 210 | |
220 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 22 to 200 | |
190 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 to 2840 | |
120 |
Stiffness to Weight: Axial, points | 12 | |
12 |
Stiffness to Weight: Bending, points | 22 | |
22 |
Strength to Weight: Axial, points | 19 to 35 | |
18 |
Strength to Weight: Bending, points | 18 to 27 | |
17 |
Thermal Shock Resistance, points | 21 to 37 | |
18 |
Alloy Composition
Carbon (C), % | 0 to 0.050 | |
0 to 0.050 |
Chromium (Cr), % | 0 to 0.3 | |
2.0 to 3.0 |
Cobalt (Co), % | 0 to 0.5 | |
0 to 0.5 |
Copper (Cu), % | 0 to 0.3 | |
4.0 to 6.0 |
Iron (Fe), % | 9.5 to 17.5 | |
9.9 to 19 |
Manganese (Mn), % | 0 to 0.8 | |
0 to 1.5 |
Molybdenum (Mo), % | 3.5 to 6.0 | |
0 to 0.5 |
Nickel (Ni), % | 79 to 82 | |
75 to 78 |
Phosphorus (P), % | 0 to 0.010 | |
0 to 0.010 |
Silicon (Si), % | 0 to 0.5 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.020 | |
0 to 0.020 |