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C38500 Bronze vs. C85700 Brass

Both C38500 bronze and C85700 brass are copper alloys. They have a moderately high 95% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C38500 bronze and the bottom bar is C85700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 17
17
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 37
40
Tensile Strength: Ultimate (UTS), MPa 370
310
Tensile Strength: Yield (Proof), MPa 130
110

Thermal Properties

Latent Heat of Fusion, J/g 160
170
Maximum Temperature: Mechanical, °C 110
120
Melting Completion (Liquidus), °C 890
940
Melting Onset (Solidus), °C 880
910
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 120
84
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
22
Electrical Conductivity: Equal Weight (Specific), % IACS 31
25

Otherwise Unclassified Properties

Base Metal Price, % relative 22
24
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
41
Resilience: Unit (Modulus of Resilience), kJ/m3 78
59
Stiffness to Weight: Axial, points 7.0
7.2
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
11
Strength to Weight: Bending, points 14
13
Thermal Diffusivity, mm2/s 40
27
Thermal Shock Resistance, points 12
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.8
Copper (Cu), % 55 to 59
58 to 64
Iron (Fe), % 0 to 0.35
0 to 0.7
Lead (Pb), % 2.5 to 3.5
0.8 to 1.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 36.7 to 42.5
32 to 40
Residuals, % 0
0 to 1.3