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C33000 Brass vs. C70250 Copper

Both C33000 brass and C70250 copper are copper alloys. They have 67% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C33000 brass and the bottom bar is C70250 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
44
Tensile Strength: Ultimate (UTS), MPa 320 to 520
520 to 740

Thermal Properties

Latent Heat of Fusion, J/g 180
220
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 940
1100
Melting Onset (Solidus), °C 900
1080
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
170
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
36 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 29
37 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 2.7
2.9
Embodied Energy, MJ/kg 45
45
Embodied Water, L/kg 320
310

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.4
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 11 to 18
16 to 23
Strength to Weight: Bending, points 13 to 18
16 to 21
Thermal Diffusivity, mm2/s 37
49
Thermal Shock Resistance, points 11 to 17
18 to 26

Alloy Composition

Copper (Cu), % 65 to 68
92.7 to 97.5
Iron (Fe), % 0 to 0.070
0
Lead (Pb), % 0.25 to 0.7
0 to 0.050
Magnesium (Mg), % 0
0.050 to 0.3
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0
2.2 to 4.2
Silicon (Si), % 0
0.25 to 1.2
Zinc (Zn), % 30.8 to 34.8
0 to 1.0
Residuals, % 0
0 to 0.5