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C91100 Bronze vs. C99700 Brass

Both C91100 bronze and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 61% 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 C91100 bronze and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 2.0
25
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 39
46
Tensile Strength: Ultimate (UTS), MPa 240
380
Tensile Strength: Yield (Proof), MPa 170
170

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 950
900
Melting Onset (Solidus), °C 820
880
Specific Heat Capacity, J/kg-K 360
410
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
25
Density, g/cm3 8.7
8.1
Embodied Carbon, kg CO2/kg material 4.2
3.3
Embodied Energy, MJ/kg 69
53
Embodied Water, L/kg 440
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
78
Resilience: Unit (Modulus of Resilience), kJ/m3 140
120
Stiffness to Weight: Axial, points 6.7
8.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.7
13
Strength to Weight: Bending, points 9.9
14
Thermal Shock Resistance, points 9.1
11

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0.5 to 3.0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 82 to 85
54 to 65.5
Iron (Fe), % 0 to 0.25
0 to 1.0
Lead (Pb), % 0 to 0.25
0 to 2.0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0 to 0.5
4.0 to 6.0
Phosphorus (P), % 0 to 1.0
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 15 to 17
0 to 1.0
Zinc (Zn), % 0 to 0.25
19 to 25
Residuals, % 0
0 to 0.3