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R56401 Titanium vs. Solder Alloy 181

R56401 titanium belongs to the titanium alloys classification, while solder alloy 181 belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 R56401 titanium and the bottom bar is solder alloy 181.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
18
Elongation at Break, % 9.1
41
Poisson's Ratio 0.32
0.44
Shear Modulus, GPa 40
6.1
Tensile Strength: Ultimate (UTS), MPa 940
27

Thermal Properties

Latent Heat of Fusion, J/g 410
26
Melting Completion (Liquidus), °C 1610
310
Melting Onset (Solidus), °C 1560
300
Specific Heat Capacity, J/kg-K 560
130
Thermal Conductivity, W/m-K 7.1
24
Thermal Expansion, µm/m-K 9.6
29

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
7.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
11
Embodied Carbon, kg CO2/kg material 38
6.2
Embodied Energy, MJ/kg 610
100

Common Calculations

Stiffness to Weight: Axial, points 13
0.86
Stiffness to Weight: Bending, points 35
7.7
Strength to Weight: Axial, points 59
0.66
Strength to Weight: Bending, points 48
1.8
Thermal Diffusivity, mm2/s 2.9
16
Thermal Shock Resistance, points 67
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 0.012
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
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.13
0
Silver (Ag), % 0
2.0 to 3.0
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.0010