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CR012A Copper vs. C83400 Brass

Both CR012A copper and C83400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 90% 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 CR012A copper and the bottom bar is C83400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 15
30
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
42
Tensile Strength: Ultimate (UTS), MPa 220
240
Tensile Strength: Yield (Proof), MPa 130
69

Thermal Properties

Latent Heat of Fusion, J/g 210
200
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1090
1040
Melting Onset (Solidus), °C 1040
1020
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 390
190
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
44
Electrical Conductivity: Equal Weight (Specific), % IACS 100
46

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 42
43
Embodied Water, L/kg 360
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
55
Resilience: Unit (Modulus of Resilience), kJ/m3 76
21
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8
7.7
Strength to Weight: Bending, points 9.0
9.9
Thermal Diffusivity, mm2/s 110
57
Thermal Shock Resistance, points 7.8
8.4

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.85 to 99.94
88 to 92
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.0050
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
8.0 to 12
Residuals, % 0
0 to 0.7