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C12900 Copper vs. C32000 Brass

Both C12900 copper and C32000 brass are copper alloys. They have 85% of their average alloy composition in common. There are 29 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 C12900 copper and the bottom bar is C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 2.8 to 50
6.8 to 29
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
41
Shear Strength, MPa 150 to 210
180 to 280
Tensile Strength: Ultimate (UTS), MPa 220 to 420
270 to 470
Tensile Strength: Yield (Proof), MPa 75 to 380
78 to 390

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1080
1020
Melting Onset (Solidus), °C 1030
990
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
160
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
36
Electrical Conductivity: Equal Weight (Specific), % IACS 98
37

Otherwise Unclassified Properties

Base Metal Price, % relative 32
28
Density, g/cm3 9.0
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
42
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 88
30 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 640
28 to 680
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 6.8 to 13
8.8 to 15
Strength to Weight: Bending, points 9.1 to 14
11 to 16
Thermal Diffusivity, mm2/s 110
47
Thermal Shock Resistance, points 7.8 to 15
9.5 to 16

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
83.5 to 86.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.0040
1.5 to 2.2
Nickel (Ni), % 0 to 0.050
0 to 0.25
Silver (Ag), % 0 to 0.054
0
Tellurium (Te), % 0 to 0.025
0
Zinc (Zn), % 0
10.6 to 15
Residuals, % 0
0 to 0.4

Comparable Variants