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C48600 Brass vs. C18400 Copper

Both C48600 brass and C18400 copper are copper alloys. They have 61% of their average alloy composition in common.

For each property being compared, the top bar is C48600 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, % 20 to 25
13 to 50
Poisson's Ratio 0.31
0.34
Rockwell B Hardness 55 to 58
16 to 84
Shear Modulus, GPa 39
44
Shear Strength, MPa 180 to 230
190 to 310
Tensile Strength: Ultimate (UTS), MPa 280 to 360
270 to 490
Tensile Strength: Yield (Proof), MPa 110 to 170
110 to 480

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 900
1080
Melting Onset (Solidus), °C 890
1070
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 110
320
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
80
Electrical Conductivity: Equal Weight (Specific), % IACS 28
81

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55 to 59
63 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 140
54 to 980
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 9.5 to 12
8.5 to 15
Strength to Weight: Bending, points 12 to 14
10 to 16
Thermal Diffusivity, mm2/s 36
94
Thermal Shock Resistance, points 9.3 to 12
9.6 to 17

Alloy Composition

Arsenic (As), % 0.020 to 0.25
0 to 0.0050
Calcium (Ca), % 0
0 to 0.0050
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 59 to 62
97.2 to 99.6
Iron (Fe), % 0
0 to 0.15
Lead (Pb), % 1.0 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
Tin (Sn), % 0.3 to 1.5
0
Zinc (Zn), % 33.4 to 39.7
0 to 0.7
Residuals, % 0
0 to 0.5