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SAE-AISI T8 Steel vs. AWS BAu-6

SAE-AISI T8 steel 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 (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T8 steel and the bottom bar is AWS BAu-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.39
Shear Modulus, GPa 78
43
Tensile Strength: Ultimate (UTS), MPa 780 to 2140
190

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Melting Completion (Liquidus), °C 1730
1050
Melting Onset (Solidus), °C 1670
1010
Specific Heat Capacity, J/kg-K 420
210
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 9.0
16

Common Calculations

Stiffness to Weight: Axial, points 12
4.0
Stiffness to Weight: Bending, points 22
10
Strength to Weight: Axial, points 24 to 66
3.2
Strength to Weight: Bending, points 21 to 41
4.5
Thermal Shock Resistance, points 24 to 66
8.5

Alloy Composition

Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.3 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Gold (Au), % 0
69.5 to 70.5
Iron (Fe), % 69.3 to 75.4
0
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
21.5 to 22.5
Palladium (Pd), % 0
7.5 to 8.5
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 13.3 to 14.8
0
Vanadium (V), % 1.8 to 2.4
0
Residuals, % 0
0 to 0.15