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C99700 Brass vs. CR008A Copper

Both C99700 brass and CR008A 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 26 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 C99700 brass and the bottom bar is CR008A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
120
Elongation at Break, % 25
15
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 46
43
Tensile Strength: Ultimate (UTS), MPa 380
220
Tensile Strength: Yield (Proof), MPa 170
130

Thermal Properties

Latent Heat of Fusion, J/g 200
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 900
1090
Melting Onset (Solidus), °C 880
1040
Specific Heat Capacity, J/kg-K 410
390
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 53
41
Embodied Water, L/kg 320
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
29
Resilience: Unit (Modulus of Resilience), kJ/m3 120
76
Stiffness to Weight: Axial, points 8.3
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 13
6.8
Strength to Weight: Bending, points 14
9.0
Thermal Shock Resistance, points 11
7.8

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 54 to 65.5
99.95 to 100
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0 to 2.0
0 to 0.0050
Manganese (Mn), % 11 to 15
0
Nickel (Ni), % 4.0 to 6.0
0
Silver (Ag), % 0
0 to 0.015
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19 to 25
0
Residuals, % 0 to 0.3
0