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Grade 18 Titanium vs. C37100 Brass

Grade 18 titanium belongs to the titanium alloys classification, while C37100 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 18 titanium and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 11 to 17
8.0 to 40
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 40
40
Shear Strength, MPa 420 to 590
260 to 300
Tensile Strength: Ultimate (UTS), MPa 690 to 980
370 to 520
Tensile Strength: Yield (Proof), MPa 540 to 810
150 to 390

Thermal Properties

Latent Heat of Fusion, J/g 410
170
Maximum Temperature: Mechanical, °C 330
120
Melting Completion (Liquidus), °C 1640
900
Melting Onset (Solidus), °C 1590
890
Specific Heat Capacity, J/kg-K 550
380
Thermal Conductivity, W/m-K 8.3
120
Thermal Expansion, µm/m-K 9.9
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
30

Otherwise Unclassified Properties

Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 41
2.7
Embodied Energy, MJ/kg 670
45
Embodied Water, L/kg 270
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
38 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1380 to 3110
110 to 750
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 35
20
Strength to Weight: Axial, points 43 to 61
13 to 18
Strength to Weight: Bending, points 39 to 49
14 to 18
Thermal Diffusivity, mm2/s 3.4
39
Thermal Shock Resistance, points 47 to 67
12 to 17

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
58 to 62
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.15
Lead (Pb), % 0
0.6 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
36.3 to 41.4
Residuals, % 0
0 to 0.4