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C90300 Bronze vs. C68300 Brass

Both C90300 bronze and C68300 brass are copper alloys. They have 66% of their average alloy composition in common. There are 26 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 C90300 bronze and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 22
15
Poisson's Ratio 0.34
0.31
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 330
430
Tensile Strength: Yield (Proof), MPa 150
260

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 1000
900
Melting Onset (Solidus), °C 850
890
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 75
120
Thermal Expansion, µm/m-K 18
20

Otherwise Unclassified Properties

Base Metal Price, % relative 33
23
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 56
46
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
56
Resilience: Unit (Modulus of Resilience), kJ/m3 110
330
Stiffness to Weight: Axial, points 7.0
7.3
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
15
Strength to Weight: Bending, points 12
16
Thermal Diffusivity, mm2/s 23
38
Thermal Shock Resistance, points 12
14

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 86 to 89
59 to 63
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0 to 0.090
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0.3 to 1.0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 7.5 to 9.0
0.050 to 0.2
Zinc (Zn), % 3.0 to 5.0
34.2 to 40.4
Residuals, % 0 to 0.6
0 to 0.5