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C83600 Ounce Metal vs. C84200 Brass

Both C83600 ounce metal and C84200 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is C83600 ounce metal and the bottom bar is C84200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 21
15
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 250
250
Tensile Strength: Yield (Proof), MPa 120
120

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 160
150
Melting Completion (Liquidus), °C 1010
990
Melting Onset (Solidus), °C 850
840
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 72
72
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
16
Electrical Conductivity: Equal Weight (Specific), % IACS 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
30
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 50
51
Embodied Water, L/kg 350
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 43
31
Resilience: Unit (Modulus of Resilience), kJ/m3 70
72
Stiffness to Weight: Axial, points 6.7
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.9
8.2
Strength to Weight: Bending, points 10
10
Thermal Diffusivity, mm2/s 22
23
Thermal Shock Resistance, points 9.3
9.1

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 84 to 86
78 to 82
Iron (Fe), % 0 to 0.3
0 to 0.4
Lead (Pb), % 4.0 to 6.0
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
0 to 0.8
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.080
Tin (Sn), % 4.0 to 6.0
4.0 to 6.0
Zinc (Zn), % 4.0 to 6.0
10 to 16
Residuals, % 0
0 to 0.7