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C84800 Brass vs. CR011A Copper

Both C84800 brass and CR011A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is C84800 brass and the bottom bar is CR011A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 18
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 39
43
Tensile Strength: Ultimate (UTS), MPa 230
220
Tensile Strength: Yield (Proof), MPa 100
130

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 150
200
Melting Completion (Liquidus), °C 950
1090
Melting Onset (Solidus), °C 830
1040
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 72
390
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
100
Electrical Conductivity: Equal Weight (Specific), % IACS 17
100

Otherwise Unclassified Properties

Base Metal Price, % relative 27
32
Density, g/cm3 8.6
9.0
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
42
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
29
Resilience: Unit (Modulus of Resilience), kJ/m3 53
76
Stiffness to Weight: Axial, points 6.6
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.3
6.8
Strength to Weight: Bending, points 9.6
9.0
Thermal Diffusivity, mm2/s 23
110
Thermal Shock Resistance, points 8.2
7.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 75 to 77
99.88 to 99.97
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 5.5 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Silver (Ag), % 0
0.030 to 0.050
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 3.0
0
Zinc (Zn), % 13 to 17
0
Residuals, % 0 to 0.7
0