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C84200 Brass vs. C83800 Bronze

Both C84200 brass and C83800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is C84200 brass and the bottom bar is C83800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 15
20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 250
230
Tensile Strength: Yield (Proof), MPa 120
110

Thermal Properties

Latent Heat of Fusion, J/g 180
180
Maximum Temperature: Mechanical, °C 150
160
Melting Completion (Liquidus), °C 990
1000
Melting Onset (Solidus), °C 840
840
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 72
72
Thermal Expansion, µm/m-K 19
19

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 30
30
Density, g/cm3 8.5
8.8
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 51
47
Embodied Water, L/kg 350
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
39
Resilience: Unit (Modulus of Resilience), kJ/m3 72
53
Stiffness to Weight: Axial, points 6.9
6.6
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.2
7.4
Strength to Weight: Bending, points 10
9.6
Thermal Diffusivity, mm2/s 23
22
Thermal Shock Resistance, points 9.1
8.6

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 78 to 82
82 to 83.8
Iron (Fe), % 0 to 0.4
0 to 0.3
Lead (Pb), % 2.0 to 3.0
5.0 to 7.0
Nickel (Ni), % 0 to 0.8
0 to 1.0
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
3.3 to 4.2
Zinc (Zn), % 10 to 16
5.0 to 8.0
Residuals, % 0 to 0.7
0 to 0.7