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SAE-AISI A7 Steel vs. Type 1 Magnetic Alloy

Both SAE-AISI A7 steel and Type 1 magnetic alloy are iron alloys. They have 55% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A7 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 72
72
Tensile Strength: Ultimate (UTS), MPa 800 to 2150
500 to 830

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 13
5.6
Embodied Energy, MJ/kg 200
77
Embodied Water, L/kg 100
130

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 29 to 77
17 to 28
Strength to Weight: Bending, points 25 to 48
17 to 24
Thermal Shock Resistance, points 27 to 72
16 to 26

Alloy Composition

Carbon (C), % 2.0 to 2.9
0 to 0.050
Chromium (Cr), % 5.0 to 5.8
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 81.4 to 87.7
50.7 to 56.5
Manganese (Mn), % 0 to 0.8
0 to 0.8
Molybdenum (Mo), % 0.9 to 1.4
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 0.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0.5 to 1.5
0
Vanadium (V), % 3.9 to 5.2
0

Comparable Variants