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C83300 Brass vs. CR020A Copper

Both C83300 brass and CR020A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C83300 brass and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 35
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 42
43
Tensile Strength: Ultimate (UTS), MPa 220
220
Tensile Strength: Yield (Proof), MPa 69
130

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 1060
1090
Melting Onset (Solidus), °C 1030
1040
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 160
380
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
100
Electrical Conductivity: Equal Weight (Specific), % IACS 33
100

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.8
9.0
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 44
41
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
29
Resilience: Unit (Modulus of Resilience), kJ/m3 21
76
Stiffness to Weight: Axial, points 7.0
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 6.9
6.8
Strength to Weight: Bending, points 9.2
9.0
Thermal Diffusivity, mm2/s 48
110
Thermal Shock Resistance, points 7.9
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 92 to 94
99.95 to 99.999
Lead (Pb), % 1.0 to 2.0
0 to 0.0050
Phosphorus (P), % 0
0.0010 to 0.0060
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 1.0 to 2.0
0
Zinc (Zn), % 2.0 to 6.0
0
Residuals, % 0 to 0.7
0