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Automotive Malleable Cast Iron vs. Type 4 Magnetic Alloy

Automotive malleable cast iron belongs to the iron alloys classification, while Type 4 magnetic alloy belongs to the nickel alloys. 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 automotive malleable cast iron and the bottom bar is Type 4 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
2.0 to 40
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 70
73
Tensile Strength: Ultimate (UTS), MPa 350 to 720
620 to 1100
Tensile Strength: Yield (Proof), MPa 220 to 590
270 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1370
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 14
11

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 1.9
60
Density, g/cm3 7.6
8.8
Embodied Carbon, kg CO2/kg material 1.5
10
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 45
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
22 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
190 to 2840
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 13 to 26
19 to 35
Strength to Weight: Bending, points 14 to 24
18 to 27
Thermal Shock Resistance, points 9.9 to 21
21 to 37

Alloy Composition

Carbon (C), % 2.2 to 2.9
0 to 0.050
Chromium (Cr), % 0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 93.6 to 96.7
9.5 to 17.5
Manganese (Mn), % 0.15 to 1.3
0 to 0.8
Molybdenum (Mo), % 0
3.5 to 6.0
Nickel (Ni), % 0
79 to 82
Phosphorus (P), % 0.020 to 0.15
0 to 0.010
Silicon (Si), % 0.9 to 1.9
0 to 0.5
Sulfur (S), % 0.020 to 0.2
0 to 0.020

Comparable Variants