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Austenitic Nodular Cast Iron vs. AWS BAu-6

Austenitic nodular cast iron belongs to the iron alloys classification, while AWS BAu-6 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is austenitic nodular cast iron and the bottom bar is AWS BAu-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180 to 190
120
Poisson's Ratio 0.29 to 0.3
0.39
Shear Modulus, GPa 70 to 72
43
Tensile Strength: Ultimate (UTS), MPa 430 to 500
190

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
120
Melting Completion (Liquidus), °C 1340 to 1400
1050
Melting Onset (Solidus), °C 1300 to 1360
1010
Specific Heat Capacity, J/kg-K 470 to 490
210
Thermal Expansion, µm/m-K 13 to 14
13

Otherwise Unclassified Properties

Density, g/cm3 7.7 to 8.0
16

Common Calculations

Stiffness to Weight: Axial, points 13
4.0
Stiffness to Weight: Bending, points 24 to 25
10
Strength to Weight: Axial, points 15 to 18
3.2
Strength to Weight: Bending, points 16 to 18
4.5
Thermal Shock Resistance, points 12 to 15
8.5