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C38000 Brass vs. C31400 Bronze

Both C38000 brass and C31400 bronze are copper alloys. They have 68% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 17
6.8 to 29
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
42
Shear Strength, MPa 230
180 to 240
Tensile Strength: Ultimate (UTS), MPa 380
270 to 420
Tensile Strength: Yield (Proof), MPa 120
78 to 310

Thermal Properties

Latent Heat of Fusion, J/g 170
200
Maximum Temperature: Mechanical, °C 110
180
Melting Completion (Liquidus), °C 800
1040
Melting Onset (Solidus), °C 760
1010
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 110
180
Thermal Expansion, µm/m-K 21
18

Otherwise Unclassified Properties

Base Metal Price, % relative 22
29
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.7
2.6
Embodied Energy, MJ/kg 46
42
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
26 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 74
28 to 420
Stiffness to Weight: Axial, points 7.1
7.1
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 13
8.7 to 13
Strength to Weight: Bending, points 14
11 to 14
Thermal Diffusivity, mm2/s 37
54
Thermal Shock Resistance, points 13
9.6 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Copper (Cu), % 55 to 60
87.5 to 90.5
Iron (Fe), % 0 to 0.35
0 to 0.1
Lead (Pb), % 1.5 to 2.5
1.3 to 2.5
Nickel (Ni), % 0
0 to 0.7
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
5.8 to 11.2
Residuals, % 0
0 to 0.4