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C84500 Brass vs. C94900 Bronze

Both C84500 brass and C94900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C84500 brass and the bottom bar is C94900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 28
17
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 39
41
Tensile Strength: Ultimate (UTS), MPa 240
300
Tensile Strength: Yield (Proof), MPa 97
130

Thermal Properties

Latent Heat of Fusion, J/g 180
190
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 980
980
Melting Onset (Solidus), °C 840
910
Specific Heat Capacity, J/kg-K 360
370
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
14
Electrical Conductivity: Equal Weight (Specific), % IACS 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 28
32
Density, g/cm3 8.7
8.8
Embodied Carbon, kg CO2/kg material 2.9
3.4
Embodied Energy, MJ/kg 47
55
Embodied Water, L/kg 340
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
41
Resilience: Unit (Modulus of Resilience), kJ/m3 45
72
Stiffness to Weight: Axial, points 6.6
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 7.7
9.4
Strength to Weight: Bending, points 9.8
11
Thermal Shock Resistance, points 8.6
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 77 to 79
79 to 81
Iron (Fe), % 0 to 0.4
0 to 0.3
Lead (Pb), % 6.0 to 7.5
4.0 to 6.0
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
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 0.080
Tin (Sn), % 2.0 to 4.0
4.0 to 6.0
Zinc (Zn), % 10 to 14
4.0 to 6.0
Residuals, % 0
0 to 0.8