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Type 4 Magnetic Alloy vs. S31266 Stainless Steel

Type 4 magnetic alloy belongs to the nickel alloys classification, while S31266 stainless steel belongs to the iron alloys. They have 42% of their average alloy composition in common. There are 28 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 S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 2.0 to 40
40
Fatigue Strength, MPa 220 to 400
400
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 420 to 630
590
Tensile Strength: Ultimate (UTS), MPa 620 to 1100
860
Tensile Strength: Yield (Proof), MPa 270 to 1040
470

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 440
460
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 60
37
Density, g/cm3 8.8
8.2
Embodied Carbon, kg CO2/kg material 10
6.5
Embodied Energy, MJ/kg 140
89
Embodied Water, L/kg 210
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 200
290
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 2840
540
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 19 to 35
29
Strength to Weight: Bending, points 18 to 27
24
Thermal Shock Resistance, points 21 to 37
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.3
23 to 25
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
1.0 to 2.5
Iron (Fe), % 9.5 to 17.5
34.1 to 46
Manganese (Mn), % 0 to 0.8
2.0 to 4.0
Molybdenum (Mo), % 3.5 to 6.0
5.2 to 6.2
Nickel (Ni), % 79 to 82
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5