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SAE-AISI 4161 Steel vs. Type 2 Magnetic Alloy

Both SAE-AISI 4161 steel and Type 2 magnetic alloy are iron alloys. They have 52% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4161 steel and the bottom bar is Type 2 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
2.0 to 38
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 680
510 to 910
Tensile Strength: Yield (Proof), MPa 410
260 to 870

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
3.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
33
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.5
5.9
Embodied Energy, MJ/kg 20
81
Embodied Water, L/kg 50
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
18 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 460
170 to 2010
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 24
17 to 30
Strength to Weight: Bending, points 22
17 to 25
Thermal Shock Resistance, points 22
16 to 29

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.050
Chromium (Cr), % 0.7 to 0.9
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 96.7 to 97.6
48.2 to 53
Manganese (Mn), % 0.75 to 1.0
0 to 0.8
Molybdenum (Mo), % 0.25 to 0.35
0 to 0.3
Nickel (Ni), % 0
47 to 49
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030