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AWS BAu-3 vs. Grade M30C Nickel

AWS BAu-3 belongs to the otherwise unclassified metals classification, while grade M30C nickel belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BAu-3 and the bottom bar is grade M30C nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
160
Poisson's Ratio 0.37
0.32
Shear Modulus, GPa 41
61
Tensile Strength: Ultimate (UTS), MPa 220
510

Thermal Properties

Latent Heat of Fusion, J/g 160
290
Melting Completion (Liquidus), °C 1030
1290
Melting Onset (Solidus), °C 970
1240
Specific Heat Capacity, J/kg-K 300
430
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Density, g/cm3 13
8.8

Common Calculations

Stiffness to Weight: Axial, points 5.0
10
Stiffness to Weight: Bending, points 13
21
Strength to Weight: Axial, points 4.9
16
Strength to Weight: Bending, points 6.4
16
Thermal Shock Resistance, points 8.7
18

Alloy Composition

Carbon (C), % 0
0 to 0.3
Copper (Cu), % 60.9 to 63
26 to 33
Gold (Au), % 34.5 to 35.5
0
Iron (Fe), % 0
0 to 3.5
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 2.5 to 3.5
56.6 to 72
Niobium (Nb), % 0
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.15
0