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Titanium 6-7 vs. Solder Alloy 181

Titanium 6-7 belongs to the titanium alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (13, 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 titanium 6-7 and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
18
Elongation at Break, % 11
41
Poisson's Ratio 0.33
0.44
Shear Modulus, GPa 45
6.1
Tensile Strength: Ultimate (UTS), MPa 1020
27

Thermal Properties

Latent Heat of Fusion, J/g 410
26
Melting Completion (Liquidus), °C 1700
310
Melting Onset (Solidus), °C 1650
300
Specific Heat Capacity, J/kg-K 520
130
Thermal Expansion, µm/m-K 9.3
29

Otherwise Unclassified Properties

Density, g/cm3 5.1
11
Embodied Carbon, kg CO2/kg material 34
6.2
Embodied Energy, MJ/kg 540
100

Common Calculations

Stiffness to Weight: Axial, points 13
0.86
Stiffness to Weight: Bending, points 32
7.7
Strength to Weight: Axial, points 56
0.66
Strength to Weight: Bending, points 44
1.8
Thermal Shock Resistance, points 66
3.8

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0 to 0.0010
Antimony (Sb), % 0
0 to 0.2
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.080
Gold (Au), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.0090
0
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.25
0 to 0.020
Lead (Pb), % 0
96.2 to 98
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silver (Ag), % 0
2.0 to 3.0
Tantalum (Ta), % 0 to 0.5
0
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 84.9 to 88
0
Zinc (Zn), % 0
0 to 0.0010