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C69710 Brass vs. C62400 Bronze

Both C69710 brass and C62400 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 C62400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
11 to 14
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
42
Shear Strength, MPa 300
420 to 440
Tensile Strength: Ultimate (UTS), MPa 470
690 to 730
Tensile Strength: Yield (Proof), MPa 230
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 240
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 930
1040
Melting Onset (Solidus), °C 880
1030
Specific Heat Capacity, J/kg-K 400
440
Thermal Conductivity, W/m-K 40
59
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
27
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 2.7
3.2
Embodied Energy, MJ/kg 44
53
Embodied Water, L/kg 310
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
68 to 77
Resilience: Unit (Modulus of Resilience), kJ/m3 250
320 to 550
Stiffness to Weight: Axial, points 7.3
7.6
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 16
23 to 25
Strength to Weight: Bending, points 16
21 to 22
Thermal Diffusivity, mm2/s 12
16
Thermal Shock Resistance, points 16
25 to 26

Alloy Composition


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Aluminum (Al), % 0
10 to 11.5
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
82.8 to 88
Iron (Fe), % 0 to 0.2
2.0 to 4.5
Lead (Pb), % 0.5 to 1.5
0
Manganese (Mn), % 0 to 0.4
0 to 0.3
Silicon (Si), % 2.5 to 3.5
0 to 0.25
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 13.8 to 22
0
Residuals, % 0 to 0.5
0 to 0.5