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Grade 25 Titanium vs. Solder Alloy 702

Grade 25 titanium belongs to the titanium alloys classification, while solder alloy 702 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 25 titanium and the bottom bar is solder alloy 702.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
51
Elongation at Break, % 11
21
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 1000
53

Thermal Properties

Latent Heat of Fusion, J/g 410
61
Melting Completion (Liquidus), °C 1610
220
Melting Onset (Solidus), °C 1560
220
Specific Heat Capacity, J/kg-K 560
220
Thermal Conductivity, W/m-K 7.1
62
Thermal Expansion, µm/m-K 9.6
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
15
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
18

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.4
Embodied Carbon, kg CO2/kg material 43
17
Embodied Energy, MJ/kg 700
290

Common Calculations

Stiffness to Weight: Axial, points 13
3.8
Stiffness to Weight: Bending, points 35
17
Strength to Weight: Axial, points 62
2.0
Strength to Weight: Bending, points 50
4.2
Thermal Diffusivity, mm2/s 2.8
38
Thermal Shock Resistance, points 71
3.4

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
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 0.050
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
0 to 0.070
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
2.8 to 3.2
Tin (Sn), % 0
96.3 to 97.2
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