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C15500 Copper vs. Grade 21 Titanium

C15500 copper belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C15500 copper and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
140
Elongation at Break, % 3.0 to 37
9.0 to 17
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
51
Shear Strength, MPa 190 to 320
550 to 790
Tensile Strength: Ultimate (UTS), MPa 280 to 550
890 to 1340
Tensile Strength: Yield (Proof), MPa 130 to 530
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 210
410
Maximum Temperature: Mechanical, °C 200
310
Melting Completion (Liquidus), °C 1080
1740
Melting Onset (Solidus), °C 1080
1690
Specific Heat Capacity, J/kg-K 390
500
Thermal Conductivity, W/m-K 350
7.5
Thermal Expansion, µm/m-K 17
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 33
60
Density, g/cm3 8.9
5.4
Embodied Carbon, kg CO2/kg material 2.7
32
Embodied Energy, MJ/kg 42
490
Embodied Water, L/kg 360
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 84
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 72 to 1210
2760 to 5010
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
32
Strength to Weight: Axial, points 8.6 to 17
46 to 69
Strength to Weight: Bending, points 11 to 17
38 to 50
Thermal Diffusivity, mm2/s 100
2.8
Thermal Shock Resistance, points 9.8 to 20
66 to 100

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 99.75 to 99.853
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 0.080 to 0.13
0
Molybdenum (Mo), % 0
14 to 16
Niobium (Nb), % 0
2.2 to 3.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.17
Phosphorus (P), % 0.040 to 0.080
0
Silicon (Si), % 0
0.15 to 0.25
Silver (Ag), % 0.027 to 0.1
0
Titanium (Ti), % 0
76 to 81.2
Residuals, % 0
0 to 0.4

Comparable Variants