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C38000 Brass vs. C67400 Bronze

Both C38000 brass and C67400 bronze are copper alloys. They have a moderately high 94% of their average alloy composition in common. There are 27 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 C38000 brass and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 17
22 to 28
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 39
41
Shear Strength, MPa 230
310 to 350
Tensile Strength: Ultimate (UTS), MPa 380
480 to 610
Tensile Strength: Yield (Proof), MPa 120
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 170
190
Maximum Temperature: Mechanical, °C 110
130
Melting Completion (Liquidus), °C 800
890
Melting Onset (Solidus), °C 760
870
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 21
21

Otherwise Unclassified Properties

Base Metal Price, % relative 22
23
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 46
48
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 74
300 to 660
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 13
17 to 22
Strength to Weight: Bending, points 14
17 to 20
Thermal Diffusivity, mm2/s 37
32
Thermal Shock Resistance, points 13
16 to 20

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0.5 to 2.0
Copper (Cu), % 55 to 60
57 to 60
Iron (Fe), % 0 to 0.35
0 to 0.35
Lead (Pb), % 1.5 to 2.5
0 to 0.5
Manganese (Mn), % 0
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0
0.5 to 1.5
Tin (Sn), % 0 to 0.3
0 to 0.3
Zinc (Zn), % 35.9 to 43.5
31.1 to 40
Residuals, % 0 to 0.5
0 to 0.5