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C12200 Copper vs. C34000 Brass

Both C12200 copper and C34000 brass are copper alloys. They have 64% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C12200 copper and the bottom bar is C34000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.34
0.31
Rockwell Superficial 30T Hardness 27 to 70
52 to 78
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 220 to 410
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1080
930
Melting Onset (Solidus), °C 1030
890
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 340
120
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 85
26
Electrical Conductivity: Equal Weight (Specific), % IACS 85
29

Otherwise Unclassified Properties

Base Metal Price, % relative 31
24
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 310
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.9 to 13
11 to 22
Strength to Weight: Bending, points 9.1 to 14
13 to 21
Thermal Diffusivity, mm2/s 98
37
Thermal Shock Resistance, points 7.9 to 15
11 to 22

Alloy Composition

Copper (Cu), % 99.9 to 99.985
62 to 65
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0.8 to 1.5
Phosphorus (P), % 0.015 to 0.040
0
Zinc (Zn), % 0
33 to 37.2
Residuals, % 0
0 to 0.4

Comparable Variants