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C68100 Brass vs. C67300 Bronze

Both C68100 brass and C67300 bronze are copper alloys. They have a moderately high 92% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C68100 brass and the bottom bar is C67300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 29
12
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 380
500
Tensile Strength: Yield (Proof), MPa 140
340

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 120
130
Melting Completion (Liquidus), °C 890
870
Melting Onset (Solidus), °C 870
830
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 98
95
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
22
Electrical Conductivity: Equal Weight (Specific), % IACS 27
25

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
55
Resilience: Unit (Modulus of Resilience), kJ/m3 94
550
Stiffness to Weight: Axial, points 7.3
7.4
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 13
17
Strength to Weight: Bending, points 15
17
Thermal Diffusivity, mm2/s 32
30
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.25
Copper (Cu), % 56 to 60
58 to 63
Iron (Fe), % 0.25 to 1.3
0 to 0.5
Lead (Pb), % 0 to 0.050
0.4 to 3.0
Manganese (Mn), % 0.010 to 0.5
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0.040 to 0.15
0.5 to 1.5
Tin (Sn), % 0.75 to 1.1
0 to 0.3
Zinc (Zn), % 36.4 to 43
27.2 to 39.1
Residuals, % 0
0 to 0.5