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C61400 Bronze vs. C69710 Brass

Both C61400 bronze and C69710 brass are copper alloys. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is C61400 bronze and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 34 to 40
25
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
41
Shear Strength, MPa 370 to 380
300
Tensile Strength: Ultimate (UTS), MPa 540 to 570
470
Tensile Strength: Yield (Proof), MPa 220 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 220
240
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1050
930
Melting Onset (Solidus), °C 1040
880
Specific Heat Capacity, J/kg-K 420
400
Thermal Conductivity, W/m-K 67
40
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 15
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 28
26
Density, g/cm3 8.5
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 48
44
Embodied Water, L/kg 360
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 170
99
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 310
250
Stiffness to Weight: Axial, points 7.5
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 18 to 19
16
Strength to Weight: Bending, points 17 to 18
16
Thermal Diffusivity, mm2/s 19
12
Thermal Shock Resistance, points 18 to 20
16

Alloy Composition

Aluminum (Al), % 6.0 to 8.0
0
Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 86 to 92.5
75 to 80
Iron (Fe), % 1.5 to 3.5
0 to 0.2
Lead (Pb), % 0 to 0.010
0.5 to 1.5
Manganese (Mn), % 0 to 1.0
0 to 0.4
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0
2.5 to 3.5
Zinc (Zn), % 0 to 1.0
13.8 to 22
Residuals, % 0
0 to 0.5