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Grade 21 Titanium vs. C26000 Brass

Grade 21 titanium belongs to the titanium alloys classification, while C26000 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 21 titanium and the bottom bar is C26000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Elongation at Break, % 9.0 to 17
2.5 to 66
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 51
41
Shear Strength, MPa 550 to 790
230 to 390
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
320 to 680
Tensile Strength: Yield (Proof), MPa 870 to 1170
110 to 570

Thermal Properties

Latent Heat of Fusion, J/g 410
180
Maximum Temperature: Mechanical, °C 310
140
Melting Completion (Liquidus), °C 1740
950
Melting Onset (Solidus), °C 1690
920
Specific Heat Capacity, J/kg-K 500
390
Thermal Conductivity, W/m-K 7.5
120
Thermal Expansion, µm/m-K 7.1
20

Otherwise Unclassified Properties

Base Metal Price, % relative 60
25
Density, g/cm3 5.4
8.2
Embodied Carbon, kg CO2/kg material 32
2.7
Embodied Energy, MJ/kg 490
45
Embodied Water, L/kg 180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
6.1 to 420
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
51 to 1490
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 32
19
Strength to Weight: Axial, points 46 to 69
11 to 23
Strength to Weight: Bending, points 38 to 50
13 to 21
Thermal Diffusivity, mm2/s 2.8
38
Thermal Shock Resistance, points 66 to 100
11 to 23

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Bismuth (Bi), % 0
0 to 0.0059
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
68.5 to 71.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.050
Lead (Pb), % 0
0 to 0.070
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
Silicon (Si), % 0.15 to 0.25
0
Titanium (Ti), % 76 to 81.2
0
Zinc (Zn), % 0
28.1 to 31.5
Residuals, % 0
0 to 0.3

Comparable Variants