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C38000 Brass vs. C18100 Copper

Both C38000 brass and C18100 copper are copper alloys. They have 58% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 17
8.3
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 39
47
Shear Strength, MPa 230
300
Tensile Strength: Ultimate (UTS), MPa 380
510
Tensile Strength: Yield (Proof), MPa 120
460

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 800
1080
Melting Onset (Solidus), °C 760
1020
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
2.7
Embodied Energy, MJ/kg 46
43
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
40
Resilience: Unit (Modulus of Resilience), kJ/m3 74
900
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13
16
Strength to Weight: Bending, points 14
16
Thermal Diffusivity, mm2/s 37
94
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 55 to 60
98.7 to 99.49
Iron (Fe), % 0 to 0.35
0
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
0.030 to 0.060
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.5