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Grade 21 Titanium vs. C55282 Copper

Grade 21 titanium belongs to the titanium alloys classification, while C55282 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is C55282 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 51
39
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
180

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 310
200
Melting Completion (Liquidus), °C 1740
770
Melting Onset (Solidus), °C 1690
640
Specific Heat Capacity, J/kg-K 500
400
Thermal Expansion, µm/m-K 7.1
16

Otherwise Unclassified Properties

Density, g/cm3 5.4
8.6
Embodied Carbon, kg CO2/kg material 32
7.0
Embodied Energy, MJ/kg 490
110

Common Calculations

Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 32
18
Strength to Weight: Axial, points 46 to 69
5.8
Strength to Weight: Bending, points 38 to 50
8.2
Thermal Shock Resistance, points 66 to 100
7.4

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
87.7 to 88.7
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0
Molybdenum (Mo), % 14 to 16
0
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Phosphorus (P), % 0
6.5 to 7.0
Silicon (Si), % 0.15 to 0.25
0
Silver (Ag), % 0
4.8 to 5.2
Titanium (Ti), % 76 to 81.2
0
Residuals, % 0
0 to 0.15