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C34500 Brass vs. C18400 Copper

Both C34500 brass and C18400 copper are copper alloys. They have 64% 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 C34500 brass and the bottom bar is C18400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 12 to 28
13 to 50
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Shear Strength, MPa 220 to 260
190 to 310
Tensile Strength: Ultimate (UTS), MPa 340 to 430
270 to 490
Tensile Strength: Yield (Proof), MPa 120 to 180
110 to 480

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 910
1080
Melting Onset (Solidus), °C 890
1070
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 120
320
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
80
Electrical Conductivity: Equal Weight (Specific), % IACS 29
81

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 45
41
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
63 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
54 to 980
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12 to 15
8.5 to 15
Strength to Weight: Bending, points 13 to 16
10 to 16
Thermal Diffusivity, mm2/s 37
94
Thermal Shock Resistance, points 11 to 14
9.6 to 17

Alloy Composition

Arsenic (As), % 0
0 to 0.0050
Calcium (Ca), % 0
0 to 0.0050
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 62 to 65
97.2 to 99.6
Iron (Fe), % 0 to 0.15
0 to 0.15
Lead (Pb), % 1.5 to 2.5
0
Lithium (Li), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Zinc (Zn), % 32 to 36.5
0 to 0.7
Residuals, % 0
0 to 0.5