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C69710 Brass vs. C61300 Bronze

Both C69710 brass and C61300 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 C61300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 25
34 to 40
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Shear Strength, MPa 300
370 to 390
Tensile Strength: Ultimate (UTS), MPa 470
550 to 580
Tensile Strength: Yield (Proof), MPa 230
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 240
220
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 930
1050
Melting Onset (Solidus), °C 880
1040
Specific Heat Capacity, J/kg-K 400
420
Thermal Conductivity, W/m-K 40
55
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
29
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 44
49
Embodied Water, L/kg 310
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 250
230 to 410
Stiffness to Weight: Axial, points 7.3
7.5
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 16
18 to 19
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 12
15
Thermal Shock Resistance, points 16
19 to 20

Alloy Composition


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Aluminum (Al), % 0
6.0 to 7.5
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
88 to 91.8
Iron (Fe), % 0 to 0.2
2.0 to 3.0
Lead (Pb), % 0.5 to 1.5
0 to 0.010
Manganese (Mn), % 0 to 0.4
0 to 0.2
Nickel (Ni), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 2.5 to 3.5
0 to 0.1
Tin (Sn), % 0
0.2 to 0.5
Zinc (Zn), % 13.8 to 22
0 to 0.2
Residuals, % 0 to 0.5
0 to 0.2