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SAE-AISI S4 Steel vs. Type 3 Magnetic Alloy

SAE-AISI S4 steel belongs to the iron alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. There are 21 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 S4 steel and the bottom bar is Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
70
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
550

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1390
1320
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
55
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 2.0
8.7
Embodied Energy, MJ/kg 29
120
Embodied Water, L/kg 48
220

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 24 to 77
18
Strength to Weight: Bending, points 22 to 48
17
Thermal Shock Resistance, points 20 to 65
18

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.050
Chromium (Cr), % 0.1 to 0.5
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
4.0 to 6.0
Iron (Fe), % 95.2 to 96.9
9.9 to 19
Manganese (Mn), % 0.6 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
75 to 78
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 1.8 to 2.3
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0.15 to 0.35
0