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Automotive Grey Cast Iron vs. AWS ERNiCrMo-4

Automotive grey cast iron belongs to the iron alloys classification, while AWS ERNiCrMo-4 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is automotive grey cast iron and the bottom bar is AWS ERNiCrMo-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
220
Elongation at Break, % 9.6 to 14
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 69 to 70
84
Tensile Strength: Ultimate (UTS), MPa 140 to 290
790

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
310
Melting Completion (Liquidus), °C 1380 to 1390
1590
Melting Onset (Solidus), °C 1340 to 1350
1530
Specific Heat Capacity, J/kg-K 490
410
Thermal Expansion, µm/m-K 12 to 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
70
Density, g/cm3 7.5 to 7.6
9.0
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
13
Embodied Energy, MJ/kg 21 to 24
170
Embodied Water, L/kg 44 to 51
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 5.2 to 11
24
Strength to Weight: Bending, points 8.0 to 13
21
Thermal Shock Resistance, points 4.2 to 8.6
22