MakeItFrom.com
Menu (ESC)

AWS BAu-2 vs. Austempered Cast Iron

AWS BAu-2 belongs to the otherwise unclassified metals classification, while austempered cast iron belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (12, 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 AWS BAu-2 and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
180
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 36
62 to 69
Tensile Strength: Ultimate (UTS), MPa 150
860 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 92
280
Melting Completion (Liquidus), °C 890
1380
Melting Onset (Solidus), °C 890
1340
Specific Heat Capacity, J/kg-K 180
490
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Density, g/cm3 17
7.5

Common Calculations

Stiffness to Weight: Axial, points 3.3
13
Stiffness to Weight: Bending, points 9.1
25
Strength to Weight: Axial, points 2.4
32 to 66
Strength to Weight: Bending, points 3.6
27 to 44
Thermal Shock Resistance, points 7.1
25 to 53

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0
3.4 to 3.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 19.4 to 20.5
0 to 0.8
Gold (Au), % 79.5 to 80.5
0
Iron (Fe), % 0
89.6 to 94
Magnesium (Mg), % 0
0 to 0.040
Manganese (Mn), % 0
0.3 to 0.4
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0
2.3 to 2.7
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Vanadium (V), % 0
0 to 0.1
Residuals, % 0 to 0.15
0