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C18700 Copper vs. C99750 Brass

Both C18700 copper and C99750 brass are copper alloys. They have 59% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
130
Elongation at Break, % 9.0 to 9.6
20 to 30
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
48
Tensile Strength: Ultimate (UTS), MPa 290 to 330
450 to 520
Tensile Strength: Yield (Proof), MPa 230 to 250
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1080
840
Melting Onset (Solidus), °C 950
820
Specific Heat Capacity, J/kg-K 380
410
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
23
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 41
51
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
190 to 300
Stiffness to Weight: Axial, points 7.1
8.6
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 9.0 to 10
15 to 18
Strength to Weight: Bending, points 11 to 12
16 to 18
Thermal Shock Resistance, points 10 to 12
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Copper (Cu), % 98 to 99.2
55 to 61
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0.8 to 1.5
0.5 to 2.5
Manganese (Mn), % 0
17 to 23
Nickel (Ni), % 0
0 to 5.0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3