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C86300 Bronze vs. C37700 Brass

Both C86300 bronze and C37700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C86300 bronze and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 14
40
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 42
39
Tensile Strength: Ultimate (UTS), MPa 850
400
Tensile Strength: Yield (Proof), MPa 480
160

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 920
890
Melting Onset (Solidus), °C 890
880
Specific Heat Capacity, J/kg-K 420
380
Thermal Conductivity, W/m-K 35
120
Thermal Expansion, µm/m-K 20
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
30

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 51
45
Embodied Water, L/kg 360
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1030
120
Stiffness to Weight: Axial, points 7.8
7.1
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 30
14
Strength to Weight: Bending, points 25
15
Thermal Diffusivity, mm2/s 11
39
Thermal Shock Resistance, points 28
13

Alloy Composition

Aluminum (Al), % 5.0 to 7.5
0
Copper (Cu), % 60 to 66
58 to 61
Iron (Fe), % 2.0 to 4.0
0 to 0.3
Lead (Pb), % 0 to 0.2
1.5 to 2.5
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0 to 1.0
0
Tin (Sn), % 0 to 0.2
0
Zinc (Zn), % 22 to 28
35.7 to 40.5
Residuals, % 0 to 1.0
0 to 0.5