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Type 3 Magnetic Alloy vs. S41425 Stainless Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while S41425 stainless steel belongs to the iron alloys. They have a modest 24% 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 (7, in this case) are not shown.

For each property being compared, the top bar is Type 3 magnetic alloy and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 43
17
Fatigue Strength, MPa 170
450
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 70
77
Shear Strength, MPa 380
570
Tensile Strength: Ultimate (UTS), MPa 550
920
Tensile Strength: Yield (Proof), MPa 210
750

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Mechanical, °C 910
810
Melting Completion (Liquidus), °C 1370
1450
Melting Onset (Solidus), °C 1320
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 55
13
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 8.7
2.9
Embodied Energy, MJ/kg 120
40
Embodied Water, L/kg 220
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1420
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
33
Strength to Weight: Bending, points 17
27
Thermal Shock Resistance, points 18
33

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 2.0 to 3.0
12 to 15
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0 to 0.3
Iron (Fe), % 9.9 to 19
74 to 81.9
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.5 to 2.0
Nickel (Ni), % 75 to 78
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.0050