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ACI-ASTM CD3MN Steel vs. Type 2 Magnetic Alloy

Both ACI-ASTM CD3MN steel and Type 2 magnetic alloy are iron alloys. They have 57% 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 ACI-ASTM CD3MN steel and the bottom bar is Type 2 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
2.0 to 38
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 710
510 to 910
Tensile Strength: Yield (Proof), MPa 460
260 to 870

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
33
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.6
5.9
Embodied Energy, MJ/kg 50
81
Embodied Water, L/kg 160
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
18 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 530
170 to 2010
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
17 to 30
Strength to Weight: Bending, points 23
17 to 25
Thermal Shock Resistance, points 20
16 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 21 to 23.5
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 1.0
0 to 0.3
Iron (Fe), % 62.6 to 71.9
48.2 to 53
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 2.5 to 3.5
0 to 0.3
Nickel (Ni), % 4.5 to 6.5
47 to 49
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030