MakeItFrom.com
Menu (ESC)

ASTM B596 Au-Cu vs. R30816 Cobalt

ASTM B596 Au-Cu belongs to the otherwise unclassified metals classification, while R30816 cobalt belongs to the cobalt alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 4.3 to 17
23
Poisson's Ratio 0.41
0.3
Shear Modulus, GPa 36
81
Tensile Strength: Ultimate (UTS), MPa 450 to 620
1020

Thermal Properties

Latent Heat of Fusion, J/g 77
300
Melting Completion (Liquidus), °C 1060
1540
Melting Onset (Solidus), °C 930
1460
Specific Heat Capacity, J/kg-K 150
420
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Density, g/cm3 18
9.1

Common Calculations

Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.5
22
Strength to Weight: Axial, points 6.8 to 9.4
31
Strength to Weight: Bending, points 7.1 to 8.8
25
Thermal Shock Resistance, points 22 to 30
28

Alloy Composition

Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 9.0 to 11
0
Gold (Au), % 89 to 91
0
Iron (Fe), % 0
0 to 5.0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5
Residuals, % 0 to 0.4
0