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Automotive Grey Cast Iron vs. AWS BVAu-7

Automotive grey cast iron belongs to the iron alloys classification, while AWS BVAu-7 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (14, 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 BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
130
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 69 to 70
45
Tensile Strength: Ultimate (UTS), MPa 140 to 290
200

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
140
Melting Completion (Liquidus), °C 1380 to 1390
1120
Melting Onset (Solidus), °C 1340 to 1350
1100
Specific Heat Capacity, J/kg-K 490
240
Thermal Expansion, µm/m-K 12 to 14
13

Otherwise Unclassified Properties

Density, g/cm3 7.5 to 7.6
15

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 25
11
Strength to Weight: Axial, points 5.2 to 11
3.7
Strength to Weight: Bending, points 8.0 to 13
5.1
Thermal Shock Resistance, points 4.2 to 8.6
8.9