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C85200 Brass vs. CR011A Copper

Both C85200 brass and CR011A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 72% of their average alloy composition in common.

For each property being compared, the top bar is C85200 brass and the bottom bar is CR011A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 28
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 270
220
Tensile Strength: Yield (Proof), MPa 95
130

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 940
1090
Melting Onset (Solidus), °C 930
1040
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 84
390
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
100
Electrical Conductivity: Equal Weight (Specific), % IACS 19
100

Otherwise Unclassified Properties

Base Metal Price, % relative 26
32
Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
42
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
29
Resilience: Unit (Modulus of Resilience), kJ/m3 42
76
Stiffness to Weight: Axial, points 7.0
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 8.9
6.8
Strength to Weight: Bending, points 11
9.0
Thermal Diffusivity, mm2/s 27
110
Thermal Shock Resistance, points 9.3
7.8

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 70 to 74
99.88 to 99.97
Iron (Fe), % 0 to 0.6
0
Lead (Pb), % 1.5 to 3.8
0
Nickel (Ni), % 0 to 1.0
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
0.030 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0.7 to 2.0
0
Zinc (Zn), % 20 to 27
0
Residuals, % 0 to 0.9
0