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Type 3 Magnetic Alloy vs. S42030 Stainless Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while S42030 stainless steel belongs to the iron alloys. They have a modest 20% 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 (5, in this case) are not shown.

For each property being compared, the top bar is Type 3 magnetic alloy and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 43
16
Fatigue Strength, MPa 170
250
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 70
76
Shear Strength, MPa 380
410
Tensile Strength: Ultimate (UTS), MPa 550
670
Tensile Strength: Yield (Proof), MPa 210
410

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Mechanical, °C 910
780
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
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 55
10
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.7
2.5
Embodied Energy, MJ/kg 120
34
Embodied Water, L/kg 220
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
92
Resilience: Unit (Modulus of Resilience), kJ/m3 120
440
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 17
22
Thermal Shock Resistance, points 18
24

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.3
Chromium (Cr), % 2.0 to 3.0
12 to 14
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
2.0 to 3.0
Iron (Fe), % 9.9 to 19
77.6 to 85
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 3.0
Nickel (Ni), % 75 to 78
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030