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Grade 25 Titanium vs. Solder Alloy 137

Grade 25 titanium belongs to the titanium alloys classification, while solder alloy 137 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 grade 25 titanium and the bottom bar is solder alloy 137.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
24
Elongation at Break, % 11
19
Poisson's Ratio 0.32
0.42
Shear Modulus, GPa 40
8.3
Tensile Strength: Ultimate (UTS), MPa 1000
34

Thermal Properties

Latent Heat of Fusion, J/g 410
33
Melting Completion (Liquidus), °C 1610
270
Melting Onset (Solidus), °C 1560
190
Specific Heat Capacity, J/kg-K 560
150
Thermal Conductivity, W/m-K 7.1
38
Thermal Expansion, µm/m-K 9.6
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
7.7

Otherwise Unclassified Properties

Density, g/cm3 4.5
10
Embodied Carbon, kg CO2/kg material 43
6.3
Embodied Energy, MJ/kg 700
100
Embodied Water, L/kg 320
660

Common Calculations

Stiffness to Weight: Axial, points 13
1.3
Stiffness to Weight: Bending, points 35
9.2
Strength to Weight: Axial, points 62
0.9
Strength to Weight: Bending, points 50
2.2
Thermal Diffusivity, mm2/s 2.8
25
Thermal Shock Resistance, points 71
3.7

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0 to 0.0010
Antimony (Sb), % 0
0.5 to 3.0
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
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 0.013
0
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.4
0 to 0.020
Lead (Pb), % 0
75.9 to 80
Nickel (Ni), % 0.3 to 0.8
0 to 0.010
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0
19.5 to 20.5
Titanium (Ti), % 86.7 to 90.6
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.4
0