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C21000 Brass vs. C86100 Bronze

Both C21000 brass and C86100 bronze are copper alloys. They have 72% of their average alloy composition in common. There are 28 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 C21000 brass and the bottom bar is C86100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 2.9 to 50
20
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
43
Tensile Strength: Ultimate (UTS), MPa 240 to 450
660
Tensile Strength: Yield (Proof), MPa 69 to 440
350

Thermal Properties

Latent Heat of Fusion, J/g 200
200
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 1070
940
Melting Onset (Solidus), °C 1050
900
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 230
35
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 57
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
24
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 310
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 830
530
Stiffness to Weight: Axial, points 7.2
7.8
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 7.4 to 14
23
Strength to Weight: Bending, points 9.6 to 15
21
Thermal Diffusivity, mm2/s 69
10
Thermal Shock Resistance, points 8.1 to 15
21

Alloy Composition

Aluminum (Al), % 0
4.5 to 5.5
Copper (Cu), % 94 to 96
66 to 68
Iron (Fe), % 0 to 0.050
2.0 to 4.0
Lead (Pb), % 0 to 0.030
0 to 0.1
Manganese (Mn), % 0
2.5 to 5.0
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 3.7 to 6.0
17.3 to 25
Residuals, % 0 to 0.2
0