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CR019A Copper vs. C99700 Brass

Both CR019A copper and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 26 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 CR019A copper and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 15
25
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
46
Tensile Strength: Ultimate (UTS), MPa 220
380
Tensile Strength: Yield (Proof), MPa 130
170

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
900
Melting Onset (Solidus), °C 1040
880
Specific Heat Capacity, J/kg-K 390
410
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 100
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 35
25
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.7
3.3
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 390
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
78
Resilience: Unit (Modulus of Resilience), kJ/m3 76
120
Stiffness to Weight: Axial, points 7.2
8.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
13
Strength to Weight: Bending, points 9.0
14
Thermal Shock Resistance, points 7.8
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.874 to 99.92
54 to 65.5
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0
0 to 2.0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0
4.0 to 6.0
Silver (Ag), % 0.080 to 0.12
0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0
19 to 25
Residuals, % 0
0 to 0.3