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C69710 Brass vs. C62300 Bronze

Both C69710 brass and C62300 bronze are copper alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C69710 brass and the bottom bar is C62300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
18 to 32
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Shear Strength, MPa 300
360 to 390
Tensile Strength: Ultimate (UTS), MPa 470
570 to 630
Tensile Strength: Yield (Proof), MPa 230
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 240
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 930
1050
Melting Onset (Solidus), °C 880
1040
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 40
54
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
13

Otherwise Unclassified Properties

Base Metal Price, % relative 26
28
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 2.7
3.1
Embodied Energy, MJ/kg 44
52
Embodied Water, L/kg 310
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
95 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 250
240 to 430
Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
19 to 21
Strength to Weight: Bending, points 16
18 to 20
Thermal Diffusivity, mm2/s 12
15
Thermal Shock Resistance, points 16
20 to 22

Alloy Composition

Aluminum (Al), % 0
8.5 to 10
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
83.2 to 89.5
Iron (Fe), % 0 to 0.2
2.0 to 4.0
Lead (Pb), % 0.5 to 1.5
0
Manganese (Mn), % 0 to 0.4
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 2.5 to 3.5
0 to 0.25
Tin (Sn), % 0
0 to 0.6
Zinc (Zn), % 13.8 to 22
0
Residuals, % 0
0 to 0.5