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C69300 Brass vs. Grade 21 Titanium

C69300 brass belongs to the copper alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 27 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 C69300 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, % 8.5 to 15
9.0 to 17
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
51
Shear Strength, MPa 330 to 370
550 to 790
Tensile Strength: Ultimate (UTS), MPa 550 to 630
890 to 1340
Tensile Strength: Yield (Proof), MPa 300 to 390
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Maximum Temperature: Mechanical, °C 160
310
Melting Completion (Liquidus), °C 880
1740
Melting Onset (Solidus), °C 860
1690
Specific Heat Capacity, J/kg-K 400
500
Thermal Conductivity, W/m-K 38
7.5
Thermal Expansion, µm/m-K 19
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 26
60
Density, g/cm3 8.2
5.4
Embodied Carbon, kg CO2/kg material 2.7
32
Embodied Energy, MJ/kg 45
490
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47 to 70
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 700
2760 to 5010
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
32
Strength to Weight: Axial, points 19 to 21
46 to 69
Strength to Weight: Bending, points 18 to 20
38 to 50
Thermal Diffusivity, mm2/s 12
2.8
Thermal Shock Resistance, points 19 to 22
66 to 100

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 73 to 77
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.1
0 to 0.4
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 0 to 0.1
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), % 0.040 to 0.15
0
Silicon (Si), % 2.7 to 3.4
0.15 to 0.25
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0
76 to 81.2
Zinc (Zn), % 18.4 to 24.3
0
Residuals, % 0
0 to 0.4

Comparable Variants