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SAE-AISI P20 Steel vs. Type 2 Magnetic Alloy

Both SAE-AISI P20 steel and Type 2 magnetic alloy are iron alloys. They have 52% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI P20 steel and the bottom bar is Type 2 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 540 to 1050
510 to 910

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
33
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.6
5.9
Embodied Energy, MJ/kg 21
81
Embodied Water, L/kg 52
140

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19 to 37
17 to 30
Strength to Weight: Bending, points 19 to 29
17 to 25
Thermal Shock Resistance, points 18 to 35
16 to 29

Alloy Composition

Carbon (C), % 0.28 to 0.4
0 to 0.050
Chromium (Cr), % 0.4 to 2.0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 95.2 to 98.5
48.2 to 53
Manganese (Mn), % 0.35 to 0.71
0 to 0.8
Molybdenum (Mo), % 0.3 to 0.55
0 to 0.3
Nickel (Ni), % 0
47 to 49
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants