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CR020A Copper vs. C68300 Brass

Both CR020A copper and C68300 brass are copper alloys. They have 61% 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 CR020A copper and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 15
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 43
40
Tensile Strength: Ultimate (UTS), MPa 220
430
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 1090
900
Melting Onset (Solidus), °C 1040
890
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 380
120
Thermal Expansion, µm/m-K 17
20

Otherwise Unclassified Properties

Base Metal Price, % relative 31
23
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
56
Resilience: Unit (Modulus of Resilience), kJ/m3 76
330
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 6.8
15
Strength to Weight: Bending, points 9.0
16
Thermal Diffusivity, mm2/s 110
38
Thermal Shock Resistance, points 7.8
14

Alloy Composition


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Antimony (Sb), % 0
0.3 to 1.0
Bismuth (Bi), % 0 to 0.00050
0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 99.95 to 99.999
59 to 63
Lead (Pb), % 0 to 0.0050
0 to 0.090
Phosphorus (P), % 0.0010 to 0.0060
0
Silicon (Si), % 0
0.3 to 1.0
Silver (Ag), % 0 to 0.015
0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 0
34.2 to 40.4
Residuals, % 0
0 to 0.5