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Type 3 Magnetic Alloy vs. AISI 420 Stainless Steel

Type 3 magnetic alloy belongs to the nickel alloys classification, while AISI 420 stainless steel belongs to the iron alloys. 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 AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 43
8.0 to 15
Fatigue Strength, MPa 170
220 to 670
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 70
76
Shear Strength, MPa 380
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 550
690 to 1720
Tensile Strength: Yield (Proof), MPa 210
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Mechanical, °C 910
620
Melting Completion (Liquidus), °C 1370
1510
Melting Onset (Solidus), °C 1320
1450
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 55
7.5
Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 8.7
2.0
Embodied Energy, MJ/kg 120
28
Embodied Water, L/kg 220
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 120
380 to 4410
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 18
25 to 62
Strength to Weight: Bending, points 17
22 to 41
Thermal Shock Resistance, points 18
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.050
0.15 to 0.4
Chromium (Cr), % 2.0 to 3.0
12 to 14
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 4.0 to 6.0
0
Iron (Fe), % 9.9 to 19
82.3 to 87.9
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 75 to 78
0 to 0.75
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