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Type 2 Magnetic Alloy vs. SAE-AISI 4340 Steel

Both Type 2 magnetic alloy and SAE-AISI 4340 steel are iron alloys. They have 53% 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 Type 2 magnetic alloy and the bottom bar is SAE-AISI 4340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 2.0 to 38
12 to 22
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 510 to 910
690 to 1280
Tensile Strength: Yield (Proof), MPa 260 to 870
470 to 1150

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
3.5
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 5.9
1.7
Embodied Energy, MJ/kg 81
22
Embodied Water, L/kg 140
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 160
79 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 2010
590 to 3490
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 30
24 to 45
Strength to Weight: Bending, points 17 to 25
22 to 33
Thermal Shock Resistance, points 16 to 29
20 to 38

Alloy Composition

Carbon (C), % 0 to 0.050
0.38 to 0.43
Chromium (Cr), % 0 to 0.3
0.7 to 0.9
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 48.2 to 53
95.1 to 96.3
Manganese (Mn), % 0 to 0.8
0.6 to 0.8
Molybdenum (Mo), % 0 to 0.3
0.2 to 0.3
Nickel (Ni), % 47 to 49
1.7 to 2.0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040

Comparable Variants