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Type 2 Magnetic Alloy vs. S21904 Stainless Steel

Both Type 2 magnetic alloy and S21904 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is Type 2 magnetic alloy and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 2.0 to 38
17 to 51
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 510 to 910
700 to 1000
Tensile Strength: Yield (Proof), MPa 260 to 870
390 to 910

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.9
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 33
15
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 5.9
3.0
Embodied Energy, MJ/kg 81
43
Embodied Water, L/kg 140
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 160
160 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 2010
380 to 2070
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 30
25 to 36
Strength to Weight: Bending, points 17 to 25
23 to 29
Thermal Shock Resistance, points 16 to 29
15 to 21

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.040
Chromium (Cr), % 0 to 0.3
19 to 21.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 48.2 to 53
59.5 to 67.4
Manganese (Mn), % 0 to 0.8
8.0 to 10
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 47 to 49
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants