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C18400 Copper vs. C43000 Brass

Both C18400 copper and C43000 brass are copper alloys. They have 86% of their average alloy composition in common. There are 30 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 C18400 copper and the bottom bar is C43000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 13 to 50
3.0 to 55
Poisson's Ratio 0.34
0.33
Rockwell B Hardness 16 to 84
30 to 100
Shear Modulus, GPa 44
42
Shear Strength, MPa 190 to 310
230 to 410
Tensile Strength: Ultimate (UTS), MPa 270 to 490
320 to 710
Tensile Strength: Yield (Proof), MPa 110 to 480
130 to 550

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1080
1030
Melting Onset (Solidus), °C 1070
1000
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 320
120
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
27
Electrical Conductivity: Equal Weight (Specific), % IACS 81
28

Otherwise Unclassified Properties

Base Metal Price, % relative 31
29
Density, g/cm3 8.9
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 310
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 120
20 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 980
82 to 1350
Stiffness to Weight: Axial, points 7.3
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 8.5 to 15
10 to 23
Strength to Weight: Bending, points 10 to 16
12 to 20
Thermal Diffusivity, mm2/s 94
36
Thermal Shock Resistance, points 9.6 to 17
11 to 25

Alloy Composition

Arsenic (As), % 0 to 0.0050
0
Calcium (Ca), % 0 to 0.0050
0
Chromium (Cr), % 0.4 to 1.2
0
Copper (Cu), % 97.2 to 99.6
84 to 87
Iron (Fe), % 0 to 0.15
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Lithium (Li), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
1.7 to 2.7
Zinc (Zn), % 0 to 0.7
9.7 to 14.3
Residuals, % 0
0 to 0.5