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Grade 21 Titanium vs. C24000 Brass

Grade 21 titanium belongs to the titanium alloys classification, while C24000 brass belongs to the copper alloys. There are 22 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 C24000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
110
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 51
42
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
310 to 640

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 310
160
Melting Completion (Liquidus), °C 1740
1000
Melting Onset (Solidus), °C 1690
970
Specific Heat Capacity, J/kg-K 500
390
Thermal Conductivity, W/m-K 7.5
140
Thermal Expansion, µm/m-K 7.1
19

Otherwise Unclassified Properties

Base Metal Price, % relative 60
27
Density, g/cm3 5.4
8.5
Embodied Carbon, kg CO2/kg material 32
2.6
Embodied Energy, MJ/kg 490
43
Embodied Water, L/kg 180
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 32
19
Strength to Weight: Axial, points 46 to 69
10 to 21
Strength to Weight: Bending, points 38 to 50
12 to 20
Thermal Diffusivity, mm2/s 2.8
43
Thermal Shock Resistance, points 66 to 100
10 to 22

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
78.5 to 81.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.050
Lead (Pb), % 0
0 to 0.050
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
18.2 to 21.5
Residuals, % 0
0 to 0.2

Comparable Variants