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Automotive Malleable Cast Iron vs. AWS ER80S-Ni2

Both automotive malleable cast iron and AWS ER80S-Ni2 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is automotive malleable cast iron and the bottom bar is AWS ER80S-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 1.0 to 10
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 70
72
Tensile Strength: Ultimate (UTS), MPa 350 to 720
620
Tensile Strength: Yield (Proof), MPa 220 to 590
540

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
52
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
3.4
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 20
22
Embodied Water, L/kg 45
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.8 to 30
160
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 950
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 13 to 26
22
Strength to Weight: Bending, points 14 to 24
21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 9.9 to 21
18

Alloy Composition

Carbon (C), % 2.2 to 2.9
0 to 0.12
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 93.6 to 96.7
94.2 to 97.6
Manganese (Mn), % 0.15 to 1.3
0 to 1.3
Nickel (Ni), % 0
2.0 to 2.8
Phosphorus (P), % 0.020 to 0.15
0 to 0.025
Silicon (Si), % 0.9 to 1.9
0.4 to 0.8
Sulfur (S), % 0.020 to 0.2
0 to 0.025
Residuals, % 0
0 to 0.5