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C69400 Brass vs. C12600 Copper

Both C69400 brass and C12600 copper are copper alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is C69400 brass and the bottom bar is C12600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 17
56
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
56
Shear Strength, MPa 350
190
Tensile Strength: Ultimate (UTS), MPa 570
270
Tensile Strength: Yield (Proof), MPa 270
69

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 920
1080
Melting Onset (Solidus), °C 820
1030
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 26
130
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
29
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
29

Otherwise Unclassified Properties

Base Metal Price, % relative 27
30
Density, g/cm3 8.3
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 44
41
Embodied Water, L/kg 300
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110
Resilience: Unit (Modulus of Resilience), kJ/m3 340
21
Stiffness to Weight: Axial, points 7.4
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 19
8.2
Strength to Weight: Bending, points 18
10
Thermal Diffusivity, mm2/s 7.7
39
Thermal Shock Resistance, points 20
9.5

Alloy Composition

Copper (Cu), % 80 to 83
99.5 to 99.8
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Phosphorus (P), % 0
0.2 to 0.4
Silicon (Si), % 3.5 to 4.5
0
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0 to 0.5
0