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C90900 Bronze vs. C18700 Copper

Both C90900 bronze and C18700 copper are copper alloys. They have 88% 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 C90900 bronze and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 15
9.0 to 9.6
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 280
290 to 330
Tensile Strength: Yield (Proof), MPa 140
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 190
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 980
1080
Melting Onset (Solidus), °C 820
950
Specific Heat Capacity, J/kg-K 360
380
Thermal Conductivity, W/m-K 65
380
Thermal Expansion, µm/m-K 18
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
98
Electrical Conductivity: Equal Weight (Specific), % IACS 11
99

Otherwise Unclassified Properties

Base Metal Price, % relative 36
30
Density, g/cm3 8.7
9.0
Embodied Carbon, kg CO2/kg material 3.9
2.6
Embodied Energy, MJ/kg 64
41
Embodied Water, L/kg 410
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 89
240 to 280
Stiffness to Weight: Axial, points 6.8
7.1
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.8
9.0 to 10
Strength to Weight: Bending, points 11
11 to 12
Thermal Diffusivity, mm2/s 21
110
Thermal Shock Resistance, points 10
10 to 12

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
98 to 99.2
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0 to 0.25
0.8 to 1.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 12 to 14
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.5