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AWS ERTi-5 vs. ASTM B596 Au-Cu

AWS ERTi-5 belongs to the titanium alloys classification, while ASTM B596 Au-Cu belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (12, 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 ERTi-5 and the bottom bar is ASTM B596 Au-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 10
4.3 to 17
Poisson's Ratio 0.32
0.41
Shear Modulus, GPa 40
36
Tensile Strength: Ultimate (UTS), MPa 900
450 to 620

Thermal Properties

Latent Heat of Fusion, J/g 410
77
Melting Completion (Liquidus), °C 1610
1060
Melting Onset (Solidus), °C 1560
930
Specific Heat Capacity, J/kg-K 560
150
Thermal Expansion, µm/m-K 9.6
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
14
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
6.7

Otherwise Unclassified Properties

Density, g/cm3 4.4
18

Common Calculations

Stiffness to Weight: Axial, points 13
3.1
Stiffness to Weight: Bending, points 35
8.5
Strength to Weight: Axial, points 56
6.8 to 9.4
Strength to Weight: Bending, points 46
7.1 to 8.8
Thermal Shock Resistance, points 63
22 to 30

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
9.0 to 11
Gold (Au), % 0
89 to 91
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.22
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.12 to 0.2
0
Titanium (Ti), % 88.2 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.4