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C31400 Bronze vs. C99700 Brass

Both C31400 bronze and C99700 brass are copper alloys. They have 70% 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 C31400 bronze and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 6.8 to 29
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
46
Tensile Strength: Ultimate (UTS), MPa 270 to 420
380
Tensile Strength: Yield (Proof), MPa 78 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 1040
900
Melting Onset (Solidus), °C 1010
880
Specific Heat Capacity, J/kg-K 380
410
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 43
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
25
Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
78
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
120
Stiffness to Weight: Axial, points 7.1
8.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.7 to 13
13
Strength to Weight: Bending, points 11 to 14
14
Thermal Shock Resistance, points 9.6 to 15
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Copper (Cu), % 87.5 to 90.5
54 to 65.5
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 1.3 to 2.5
0 to 2.0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0 to 0.7
4.0 to 6.0
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 5.8 to 11.2
19 to 25
Residuals, % 0
0 to 0.3