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C67600 Bronze vs. C69710 Brass

Both C67600 bronze and C69710 brass are copper alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is C67600 bronze and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 13 to 33
25
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 40
41
Shear Strength, MPa 270 to 350
300
Tensile Strength: Ultimate (UTS), MPa 430 to 570
470
Tensile Strength: Yield (Proof), MPa 170 to 380
230

Thermal Properties

Latent Heat of Fusion, J/g 170
240
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 890
930
Melting Onset (Solidus), °C 870
880
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 110
40
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 27
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 23
26
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
44
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 130
99
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
250
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 15 to 20
16
Strength to Weight: Bending, points 16 to 19
16
Thermal Diffusivity, mm2/s 35
12
Thermal Shock Resistance, points 14 to 19
16

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 57 to 60
75 to 80
Iron (Fe), % 0.4 to 1.3
0 to 0.2
Lead (Pb), % 0.5 to 1.0
0.5 to 1.5
Manganese (Mn), % 0.050 to 0.5
0 to 0.4
Silicon (Si), % 0
2.5 to 3.5
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 35.2 to 41.6
13.8 to 22
Residuals, % 0
0 to 0.5