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C84000 Brass vs. Grade 21 Titanium

C84000 brass belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 26 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 C84000 brass and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
140
Elongation at Break, % 27
9.0 to 17
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
51
Tensile Strength: Ultimate (UTS), MPa 250
890 to 1340
Tensile Strength: Yield (Proof), MPa 140
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 190
410
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 1040
1740
Melting Onset (Solidus), °C 940
1690
Specific Heat Capacity, J/kg-K 380
500
Thermal Conductivity, W/m-K 72
7.5
Thermal Expansion, µm/m-K 18
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
60
Density, g/cm3 8.6
5.4
Embodied Carbon, kg CO2/kg material 3.0
32
Embodied Energy, MJ/kg 49
490
Embodied Water, L/kg 330
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 83
2760 to 5010
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
32
Strength to Weight: Axial, points 8.2
46 to 69
Strength to Weight: Bending, points 10
38 to 50
Thermal Diffusivity, mm2/s 22
2.8
Thermal Shock Resistance, points 9.0
66 to 100

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
2.5 to 3.5
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 82 to 89
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.4
0 to 0.4
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 0.5 to 2.0
0
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 to 0.050
0
Silicon (Si), % 0 to 0.0050
0.15 to 0.25
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 2.0 to 4.0
0
Titanium (Ti), % 0
76 to 81.2
Zinc (Zn), % 5.0 to 14
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.4