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C94900 Bronze vs. C87800 Brass

Both C94900 bronze and C87800 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% 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 C94900 bronze and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
25
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 41
42
Tensile Strength: Ultimate (UTS), MPa 300
590
Tensile Strength: Yield (Proof), MPa 130
350

Thermal Properties

Latent Heat of Fusion, J/g 190
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 980
920
Melting Onset (Solidus), °C 910
820
Specific Heat Capacity, J/kg-K 370
410
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 14
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
27
Density, g/cm3 8.8
8.3
Embodied Carbon, kg CO2/kg material 3.4
2.7
Embodied Energy, MJ/kg 55
44
Embodied Water, L/kg 350
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
130
Resilience: Unit (Modulus of Resilience), kJ/m3 72
540
Stiffness to Weight: Axial, points 6.9
7.4
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 9.4
20
Strength to Weight: Bending, points 11
19
Thermal Shock Resistance, points 11
21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.15
Antimony (Sb), % 0 to 0.25
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 79 to 81
80 to 84.2
Iron (Fe), % 0 to 0.3
0 to 0.15
Lead (Pb), % 4.0 to 6.0
0 to 0.15
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0 to 0.1
0 to 0.15
Nickel (Ni), % 4.0 to 6.0
0 to 0.2
Phosphorus (P), % 0 to 0.050
0 to 0.010
Silicon (Si), % 0 to 0.0050
3.8 to 4.2
Sulfur (S), % 0 to 0.080
0 to 0.050
Tin (Sn), % 4.0 to 6.0
0 to 0.25
Zinc (Zn), % 4.0 to 6.0
12 to 16
Residuals, % 0
0 to 0.5