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SAE-AISI 1108 Steel vs. AWS BVAu-2

SAE-AISI 1108 steel belongs to the iron alloys classification, while AWS BVAu-2 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (18, 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 SAE-AISI 1108 steel and the bottom bar is AWS BVAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 73
36
Tensile Strength: Ultimate (UTS), MPa 380 to 440
150

Thermal Properties

Latent Heat of Fusion, J/g 250
92
Melting Completion (Liquidus), °C 1460
890
Melting Onset (Solidus), °C 1420
890
Specific Heat Capacity, J/kg-K 470
180
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Density, g/cm3 7.9
17

Common Calculations

Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 24
9.1
Strength to Weight: Axial, points 13 to 16
2.4
Strength to Weight: Bending, points 15 to 16
3.6
Thermal Shock Resistance, points 12 to 14
7.1

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.080 to 0.13
0 to 0.0050
Copper (Cu), % 0
19.5 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 98.9 to 99.24
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.6 to 0.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Sulfur (S), % 0.080 to 0.13
0
Zinc (Zn), % 0
0 to 0.0010