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C84000 Brass vs. C90200 Bronze

Both C84000 brass and C90200 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 90% of their average alloy composition in common.

For each property being compared, the top bar is C84000 brass and the bottom bar is C90200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
70
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 27
30
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 250
260
Tensile Strength: Yield (Proof), MPa 140
110

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 1040
1050
Melting Onset (Solidus), °C 940
880
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 72
62
Thermal Expansion, µm/m-K 18
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 30
34
Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 3.0
3.3
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 330
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 58
63
Resilience: Unit (Modulus of Resilience), kJ/m3 83
55
Stiffness to Weight: Axial, points 7.2
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 8.2
8.3
Strength to Weight: Bending, points 10
10
Thermal Diffusivity, mm2/s 22
19
Thermal Shock Resistance, points 9.0
9.5

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.020
0 to 0.2
Boron (B), % 0 to 0.1
0
Copper (Cu), % 82 to 89
91 to 94
Iron (Fe), % 0 to 0.4
0 to 0.2
Lead (Pb), % 0 to 0.090
0 to 0.3
Manganese (Mn), % 0 to 0.010
0
Nickel (Ni), % 0.5 to 2.0
0 to 0.5
Phosphorus (P), % 0 to 0.050
0 to 0.050
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0.1 to 0.65
0 to 0.050
Tin (Sn), % 2.0 to 4.0
6.0 to 8.0
Zinc (Zn), % 5.0 to 14
0 to 0.5
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0 to 0.6