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C84500 Brass vs. C90200 Bronze

Both C84500 brass and C90200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is C84500 brass and the bottom bar is C90200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
70
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
30
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
41
Tensile Strength: Ultimate (UTS), MPa 240
260
Tensile Strength: Yield (Proof), MPa 97
110

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 150
180
Melting Completion (Liquidus), °C 980
1050
Melting Onset (Solidus), °C 840
880
Specific Heat Capacity, J/kg-K 360
370
Thermal Conductivity, W/m-K 72
62
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
13
Electrical Conductivity: Equal Weight (Specific), % IACS 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 28
34
Density, g/cm3 8.7
8.8
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 340
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
63
Resilience: Unit (Modulus of Resilience), kJ/m3 45
55
Stiffness to Weight: Axial, points 6.6
7.0
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.7
8.3
Strength to Weight: Bending, points 9.8
10
Thermal Diffusivity, mm2/s 23
19
Thermal Shock Resistance, points 8.6
9.5

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.2
Copper (Cu), % 77 to 79
91 to 94
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 6.0 to 7.5
0 to 0.3
Nickel (Ni), % 0 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 2.0 to 4.0
6.0 to 8.0
Zinc (Zn), % 10 to 14
0 to 0.5
Residuals, % 0 to 0.7
0 to 0.6