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C90300 Bronze vs. C85400 Brass

Both C90300 bronze and C85400 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 74% 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 C90300 bronze and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 22
23
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 330
220
Tensile Strength: Yield (Proof), MPa 150
85

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 1000
940
Melting Onset (Solidus), °C 850
940
Specific Heat Capacity, J/kg-K 370
380
Thermal Conductivity, W/m-K 75
89
Thermal Expansion, µm/m-K 18
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
20
Electrical Conductivity: Equal Weight (Specific), % IACS 12
22

Otherwise Unclassified Properties

Base Metal Price, % relative 33
25
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 370
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
40
Resilience: Unit (Modulus of Resilience), kJ/m3 110
35
Stiffness to Weight: Axial, points 7.0
7.0
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 11
7.5
Strength to Weight: Bending, points 12
9.9
Thermal Diffusivity, mm2/s 23
28
Thermal Shock Resistance, points 12
7.6

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0 to 0.35
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
65 to 70
Iron (Fe), % 0 to 0.2
0 to 0.7
Lead (Pb), % 0 to 0.3
1.5 to 3.8
Nickel (Ni), % 0 to 1.0
0 to 1.0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.050
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 7.5 to 9.0
0.5 to 1.5
Zinc (Zn), % 3.0 to 5.0
24 to 32
Residuals, % 0 to 0.6
0 to 1.1