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C34500 Brass vs. C90300 Bronze

Both C34500 brass and C90300 bronze are copper alloys. They have 68% 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 C34500 brass and the bottom bar is C90300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 12 to 28
22
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 340 to 430
330
Tensile Strength: Yield (Proof), MPa 120 to 180
150

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 910
1000
Melting Onset (Solidus), °C 890
850
Specific Heat Capacity, J/kg-K 380
370
Thermal Conductivity, W/m-K 120
75
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
12
Electrical Conductivity: Equal Weight (Specific), % IACS 29
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
33
Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 45
56
Embodied Water, L/kg 320
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
59
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
110
Stiffness to Weight: Axial, points 7.1
7.0
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12 to 15
11
Strength to Weight: Bending, points 13 to 16
12
Thermal Diffusivity, mm2/s 37
23
Thermal Shock Resistance, points 11 to 14
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 62 to 65
86 to 89
Iron (Fe), % 0 to 0.15
0 to 0.2
Lead (Pb), % 1.5 to 2.5
0 to 0.3
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
7.5 to 9.0
Zinc (Zn), % 32 to 36.5
3.0 to 5.0
Residuals, % 0
0 to 0.6