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Type 3 Magnetic Alloy vs. S31260 Stainless Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while S31260 stainless steel belongs to the iron alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. 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 3 magnetic alloy and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 43
23
Fatigue Strength, MPa 170
370
Poisson's Ratio 0.31
0.27
Shear Modulus, GPa 70
80
Shear Strength, MPa 380
500
Tensile Strength: Ultimate (UTS), MPa 550
790
Tensile Strength: Yield (Proof), MPa 210
540

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
20
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.7
3.9
Embodied Energy, MJ/kg 120
53
Embodied Water, L/kg 220
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
160
Resilience: Unit (Modulus of Resilience), kJ/m3 120
720
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 18
22

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 2.0 to 3.0
24 to 26
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0.2 to 0.8
Iron (Fe), % 9.9 to 19
59.6 to 67.6
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.5
Nickel (Ni), % 75 to 78
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5