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AWS BVAu-4 vs. SAE-AISI 9254 Steel

AWS BVAu-4 belongs to the otherwise unclassified metals classification, while SAE-AISI 9254 steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (17, 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 BVAu-4 and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.4
0.29
Shear Modulus, GPa 41
72
Tensile Strength: Ultimate (UTS), MPa 190
660

Thermal Properties

Latent Heat of Fusion, J/g 100
270
Melting Completion (Liquidus), °C 950
1440
Melting Onset (Solidus), °C 950
1400
Specific Heat Capacity, J/kg-K 190
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Density, g/cm3 17
7.7

Common Calculations

Stiffness to Weight: Axial, points 3.6
13
Stiffness to Weight: Bending, points 9.3
25
Strength to Weight: Axial, points 3.0
24
Strength to Weight: Bending, points 4.2
22
Thermal Shock Resistance, points 8.7
20

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0.51 to 0.59
Chromium (Cr), % 0
0.6 to 0.8
Gold (Au), % 81.5 to 82.5
0
Iron (Fe), % 0
96.1 to 97.1
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0.6 to 0.8
Nickel (Ni), % 17.5 to 18.5
0
Phosphorus (P), % 0 to 0.0020
0 to 0.035
Silicon (Si), % 0
1.2 to 1.6
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.0010
0