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C99700 Brass vs. C94800 Bronze

Both C99700 brass and C94800 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 68% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C99700 brass and the bottom bar is C94800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 25
22
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 46
43
Tensile Strength: Ultimate (UTS), MPa 380
310
Tensile Strength: Yield (Proof), MPa 170
160

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 900
1030
Melting Onset (Solidus), °C 880
900
Specific Heat Capacity, J/kg-K 410
380
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
12
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
34
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 3.3
3.5
Embodied Energy, MJ/kg 53
56
Embodied Water, L/kg 320
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
58
Resilience: Unit (Modulus of Resilience), kJ/m3 120
110
Stiffness to Weight: Axial, points 8.3
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 13
9.8
Strength to Weight: Bending, points 14
12
Thermal Shock Resistance, points 11
11

Alloy Composition

Aluminum (Al), % 0.5 to 3.0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Copper (Cu), % 54 to 65.5
84 to 89
Iron (Fe), % 0 to 1.0
0 to 0.25
Lead (Pb), % 0 to 2.0
0.3 to 1.0
Manganese (Mn), % 11 to 15
0 to 0.2
Nickel (Ni), % 4.0 to 6.0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 1.0
4.5 to 6.0
Zinc (Zn), % 19 to 25
1.0 to 2.5
Residuals, % 0
0 to 1.3