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CR021A Copper vs. C35000 Brass

Both CR021A copper and C35000 brass are copper alloys. They have 62% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CR021A copper and the bottom bar is C35000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 230
340 to 650

Thermal Properties

Latent Heat of Fusion, J/g 210
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
920
Melting Onset (Solidus), °C 1040
890
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
120
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
26
Electrical Conductivity: Equal Weight (Specific), % IACS 99
29

Otherwise Unclassified Properties

Base Metal Price, % relative 31
23
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 41
45
Embodied Water, L/kg 320
320

Common Calculations

Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.1
12 to 22
Strength to Weight: Bending, points 9.3
13 to 21
Thermal Diffusivity, mm2/s 110
37
Thermal Shock Resistance, points 8.1
11 to 22

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.95 to 99.998
60 to 63
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.0050
0.8 to 2.0
Phosphorus (P), % 0.0020 to 0.0070
0
Silver (Ag), % 0 to 0.015
0
Zinc (Zn), % 0
34.5 to 39.2
Residuals, % 0
0 to 0.4