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C84500 Brass vs. C18700 Copper

Both C84500 brass and C18700 copper are copper alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C84500 brass and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
9.0 to 9.6
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
43
Tensile Strength: Ultimate (UTS), MPa 240
290 to 330
Tensile Strength: Yield (Proof), MPa 97
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 980
1080
Melting Onset (Solidus), °C 840
950
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 72
380
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
98
Electrical Conductivity: Equal Weight (Specific), % IACS 17
99

Otherwise Unclassified Properties

Base Metal Price, % relative 28
30
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 340
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 45
240 to 280
Stiffness to Weight: Axial, points 6.6
7.1
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.7
9.0 to 10
Strength to Weight: Bending, points 9.8
11 to 12
Thermal Diffusivity, mm2/s 23
110
Thermal Shock Resistance, points 8.6
10 to 12

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 77 to 79
98 to 99.2
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 6.0 to 7.5
0.8 to 1.5
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 4.0
0
Zinc (Zn), % 10 to 14
0
Residuals, % 0
0 to 0.5