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C64200 Bronze vs. C69400 Brass

Both C64200 bronze and C69400 brass are copper alloys. They have 84% of their average alloy composition in common.

For each property being compared, the top bar is C64200 bronze and the bottom bar is C69400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 14 to 35
17
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 42
42
Shear Strength, MPa 330 to 390
350
Tensile Strength: Ultimate (UTS), MPa 540 to 640
570
Tensile Strength: Yield (Proof), MPa 230 to 320
270

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 1000
920
Melting Onset (Solidus), °C 980
820
Specific Heat Capacity, J/kg-K 430
410
Thermal Conductivity, W/m-K 45
26
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 29
27
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 50
44
Embodied Water, L/kg 370
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 170
80
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 470
340
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18 to 21
19
Strength to Weight: Bending, points 18 to 20
18
Thermal Diffusivity, mm2/s 13
7.7
Thermal Shock Resistance, points 20 to 23
20

Alloy Composition

Aluminum (Al), % 6.3 to 7.6
0
Arsenic (As), % 0 to 0.15
0
Copper (Cu), % 88.2 to 92.2
80 to 83
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 0 to 0.050
0 to 0.3
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 1.5 to 2.2
3.5 to 4.5
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
11.5 to 16.5
Residuals, % 0
0 to 0.5