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SAE-AISI O7 Steel vs. Type 1 Magnetic Alloy

Both SAE-AISI O7 steel and Type 1 magnetic alloy are iron alloys. They have 55% 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 O7 steel and the bottom bar is Type 1 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 680 to 2110
500 to 830

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
31
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 2.3
5.6
Embodied Energy, MJ/kg 33
77
Embodied Water, L/kg 52
130

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 24 to 74
17 to 28
Strength to Weight: Bending, points 22 to 46
17 to 24
Thermal Shock Resistance, points 23 to 70
16 to 26

Alloy Composition

Carbon (C), % 1.1 to 1.3
0 to 0.050
Chromium (Cr), % 0.35 to 0.85
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 92.9 to 97.6
50.7 to 56.5
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 0 to 0.3
0 to 0.3
Nickel (Ni), % 0 to 0.3
43.5 to 46.5
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.0 to 2.0
0
Vanadium (V), % 0 to 0.4
0

Comparable Variants