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CC755S Brass vs. CR025A Copper

Both CC755S brass and CR025A copper are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 60% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is CC755S brass and the bottom bar is CR025A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 9.5
15
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 390
230
Tensile Strength: Yield (Proof), MPa 250
140

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 820
1090
Melting Onset (Solidus), °C 780
1040
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 120
370
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
99
Electrical Conductivity: Equal Weight (Specific), % IACS 30
99

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
31
Resilience: Unit (Modulus of Resilience), kJ/m3 290
83
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 14
7.1
Strength to Weight: Bending, points 15
9.3
Thermal Diffusivity, mm2/s 38
110
Thermal Shock Resistance, points 13
8.1

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 59.5 to 61
99.9 to 99.96
Iron (Fe), % 0.050 to 0.2
0
Lead (Pb), % 1.2 to 1.7
0 to 0.0050
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.050
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.8 to 38.9
0