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C86700 Bronze vs. C21000 Brass

Both C86700 bronze and C21000 brass are copper alloys. They have 62% 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 C86700 bronze and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
2.9 to 50
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 630
240 to 450
Tensile Strength: Yield (Proof), MPa 250
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 880
1070
Melting Onset (Solidus), °C 860
1050
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 89
230
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
56
Electrical Conductivity: Equal Weight (Specific), % IACS 19
57

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 49
42
Embodied Water, L/kg 340
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 290
21 to 830
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 22
7.4 to 14
Strength to Weight: Bending, points 21
9.6 to 15
Thermal Diffusivity, mm2/s 28
69
Thermal Shock Resistance, points 21
8.1 to 15

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0
Copper (Cu), % 55 to 60
94 to 96
Iron (Fe), % 1.0 to 3.0
0 to 0.050
Lead (Pb), % 0.5 to 1.5
0 to 0.030
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0
Tin (Sn), % 0 to 1.5
0
Zinc (Zn), % 30 to 38
3.7 to 6.0
Residuals, % 0
0 to 0.2