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C68400 Brass vs. CR004A Copper

Both C68400 brass and CR004A copper are copper alloys. They have 62% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is CR004A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
15
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 540
220
Tensile Strength: Yield (Proof), MPa 310
130

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 840
1090
Melting Onset (Solidus), °C 820
1040
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 66
380
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
100
Electrical Conductivity: Equal Weight (Specific), % IACS 99
100

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
29
Resilience: Unit (Modulus of Resilience), kJ/m3 460
76
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 19
6.8
Strength to Weight: Bending, points 19
9.0
Thermal Diffusivity, mm2/s 21
110
Thermal Shock Resistance, points 18
7.8

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Bismuth (Bi), % 0
0 to 0.00050
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
99.9 to 100
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 0.090
0 to 0.0050
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Oxygen (O), % 0
0 to 0.040
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0
Residuals, % 0 to 0.5
0