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Grade 31 Titanium vs. C33000 Brass

Grade 31 titanium belongs to the titanium alloys classification, while C33000 brass belongs to the copper alloys. There are 28 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 grade 31 titanium and the bottom bar is C33000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
7.0 to 60
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 41
40
Shear Strength, MPa 320
240 to 300
Tensile Strength: Ultimate (UTS), MPa 510
320 to 520
Tensile Strength: Yield (Proof), MPa 450
110 to 450

Thermal Properties

Latent Heat of Fusion, J/g 420
180
Maximum Temperature: Mechanical, °C 320
130
Melting Completion (Liquidus), °C 1660
940
Melting Onset (Solidus), °C 1610
900
Specific Heat Capacity, J/kg-K 540
390
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 8.7
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
26
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
29

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 36
2.7
Embodied Energy, MJ/kg 600
45
Embodied Water, L/kg 230
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
35 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 940
60 to 950
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 35
19
Strength to Weight: Axial, points 32
11 to 18
Strength to Weight: Bending, points 32
13 to 18
Thermal Diffusivity, mm2/s 8.5
37
Thermal Shock Resistance, points 39
11 to 17

Alloy Composition

Carbon (C), % 0 to 0.080
0
Cobalt (Co), % 0.2 to 0.8
0
Copper (Cu), % 0
65 to 68
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 0.070
Lead (Pb), % 0
0.25 to 0.7
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.35
0
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 97.9 to 99.76
0
Zinc (Zn), % 0
30.8 to 34.8
Residuals, % 0
0 to 0.4