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C38500 Bronze vs. C84500 Brass

Both C38500 bronze and C84500 brass 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 (2, in this case) are not shown.

For each property being compared, the top bar is C38500 bronze and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 17
28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 37
39
Tensile Strength: Ultimate (UTS), MPa 370
240
Tensile Strength: Yield (Proof), MPa 130
97

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Maximum Temperature: Mechanical, °C 110
150
Melting Completion (Liquidus), °C 890
980
Melting Onset (Solidus), °C 880
840
Specific Heat Capacity, J/kg-K 380
360
Thermal Conductivity, W/m-K 120
72
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
16
Electrical Conductivity: Equal Weight (Specific), % IACS 31
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
28
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 2.6
2.9
Embodied Energy, MJ/kg 45
47
Embodied Water, L/kg 320
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
54
Resilience: Unit (Modulus of Resilience), kJ/m3 78
45
Stiffness to Weight: Axial, points 7.0
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13
7.7
Strength to Weight: Bending, points 14
9.8
Thermal Diffusivity, mm2/s 40
23
Thermal Shock Resistance, points 12
8.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 55 to 59
77 to 79
Iron (Fe), % 0 to 0.35
0 to 0.4
Lead (Pb), % 2.5 to 3.5
6.0 to 7.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.0 to 4.0
Zinc (Zn), % 36.7 to 42.5
10 to 14
Residuals, % 0
0 to 0.7