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C38000 Brass vs. C81500 Copper

Both C38000 brass and C81500 copper are copper alloys. They have 58% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C81500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
17
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
44
Tensile Strength: Ultimate (UTS), MPa 380
350
Tensile Strength: Yield (Proof), MPa 120
280

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 800
1090
Melting Onset (Solidus), °C 760
1080
Specific Heat Capacity, J/kg-K 380
390
Thermal Conductivity, W/m-K 110
320
Thermal Expansion, µm/m-K 21
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
56
Resilience: Unit (Modulus of Resilience), kJ/m3 74
330
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13
11
Strength to Weight: Bending, points 14
12
Thermal Diffusivity, mm2/s 37
91
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 0
0.4 to 1.5
Copper (Cu), % 55 to 60
97.4 to 99.6
Iron (Fe), % 0 to 0.35
0 to 0.1
Lead (Pb), % 1.5 to 2.5
0 to 0.020
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0 to 0.3
0 to 0.1
Zinc (Zn), % 35.9 to 43.5
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.5