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OS025 C11400 Copper vs. OS025 C33000 Brass

Both OS025 C11400 copper and OS025 C33000 brass are copper alloys. Both are furnished in the OS025 (annealed to 0.025mm grain size) temper. They have 67% of their average alloy composition in common. There are 30 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 OS025 C11400 copper and the bottom bar is OS025 C33000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 45
50
Poisson's Ratio 0.34
0.31
Rockwell F Hardness 45
75
Shear Modulus, GPa 43
40
Shear Strength, MPa 160
260
Tensile Strength: Ultimate (UTS), MPa 230
360
Tensile Strength: Yield (Proof), MPa 82
150

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 1080
940
Melting Onset (Solidus), °C 1030
900
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 390
120
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
26
Electrical Conductivity: Equal Weight (Specific), % IACS 100
29

Otherwise Unclassified Properties

Base Metal Price, % relative 32
24
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 350
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
140
Resilience: Unit (Modulus of Resilience), kJ/m3 29
110
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 7.3
12
Strength to Weight: Bending, points 9.4
14
Thermal Diffusivity, mm2/s 110
37
Thermal Shock Resistance, points 8.3
12

Alloy Composition

Copper (Cu), % 99.84 to 99.966
65 to 68
Iron (Fe), % 0
0 to 0.070
Lead (Pb), % 0
0.25 to 0.7
Silver (Ag), % 0.034 to 0.060
0
Zinc (Zn), % 0
30.8 to 34.8
Residuals, % 0
0 to 0.4