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Grade 21 Titanium vs. C49300 Brass

Grade 21 titanium belongs to the titanium alloys classification, while C49300 brass belongs to the copper alloys. There are 27 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 21 titanium and the bottom bar is C49300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
100
Elongation at Break, % 9.0 to 17
4.5 to 20
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 51
40
Shear Strength, MPa 550 to 790
270 to 290
Tensile Strength: Ultimate (UTS), MPa 890 to 1340
430 to 520
Tensile Strength: Yield (Proof), MPa 870 to 1170
210 to 410

Thermal Properties

Latent Heat of Fusion, J/g 410
170
Maximum Temperature: Mechanical, °C 310
120
Melting Completion (Liquidus), °C 1740
880
Melting Onset (Solidus), °C 1690
840
Specific Heat Capacity, J/kg-K 500
380
Thermal Conductivity, W/m-K 7.5
88
Thermal Expansion, µm/m-K 7.1
20

Otherwise Unclassified Properties

Base Metal Price, % relative 60
26
Density, g/cm3 5.4
8.0
Embodied Carbon, kg CO2/kg material 32
3.0
Embodied Energy, MJ/kg 490
50
Embodied Water, L/kg 180
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 180
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 2760 to 5010
220 to 800
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 32
19
Strength to Weight: Axial, points 46 to 69
15 to 18
Strength to Weight: Bending, points 38 to 50
16 to 18
Thermal Diffusivity, mm2/s 2.8
29
Thermal Shock Resistance, points 66 to 100
14 to 18

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0 to 0.5
Antimony (Sb), % 0
0 to 0.5
Bismuth (Bi), % 0
0.5 to 2.0
Carbon (C), % 0 to 0.050
0
Copper (Cu), % 0
58 to 62
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.1
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0
0 to 0.030
Molybdenum (Mo), % 14 to 16
0
Nickel (Ni), % 0
0 to 1.5
Niobium (Nb), % 2.2 to 3.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.17
0
Phosphorus (P), % 0
0 to 0.2
Selenium (Se), % 0
0 to 0.2
Silicon (Si), % 0.15 to 0.25
0 to 0.1
Tin (Sn), % 0
1.0 to 1.8
Titanium (Ti), % 76 to 81.2
0
Zinc (Zn), % 0
30.6 to 40.5
Residuals, % 0
0 to 0.5

Comparable Variants