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Austempered Cast Iron vs. AWS BAg-13

Austempered cast iron belongs to the iron alloys classification, while AWS BAg-13 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is austempered cast iron and the bottom bar is AWS BAg-13.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
91
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 62 to 69
34
Tensile Strength: Ultimate (UTS), MPa 860 to 1800
180

Thermal Properties

Latent Heat of Fusion, J/g 280
150
Melting Completion (Liquidus), °C 1380
860
Melting Onset (Solidus), °C 1340
720
Specific Heat Capacity, J/kg-K 490
310
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Density, g/cm3 7.5
9.7
Embodied Carbon, kg CO2/kg material 1.8
52
Embodied Energy, MJ/kg 25
820

Common Calculations

Stiffness to Weight: Axial, points 13
5.2
Stiffness to Weight: Bending, points 25
16
Strength to Weight: Axial, points 32 to 66
5.2
Strength to Weight: Bending, points 27 to 44
7.3
Thermal Shock Resistance, points 25 to 53
7.5

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Arsenic (As), % 0 to 0.020
0
Carbon (C), % 3.4 to 3.8
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.8
37.4 to 42.5
Iron (Fe), % 89.6 to 94
0
Magnesium (Mg), % 0 to 0.040
0
Manganese (Mn), % 0.3 to 0.4
0
Molybdenum (Mo), % 0 to 0.3
0
Nickel (Ni), % 0 to 2.0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0
Selenium (Se), % 0 to 0.030
0
Silicon (Si), % 2.3 to 2.7
0
Silver (Ag), % 0
53 to 55
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0 to 0.020
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
4.0 to 6.0
Residuals, % 0
0 to 0.15