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C31400 Bronze vs. C37100 Brass

Both C31400 bronze and C37100 brass are copper alloys. They have 70% of their average alloy composition in common. There are 29 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 C31400 bronze and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 6.8 to 29
8.0 to 40
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 42
40
Shear Strength, MPa 180 to 240
260 to 300
Tensile Strength: Ultimate (UTS), MPa 270 to 420
370 to 520
Tensile Strength: Yield (Proof), MPa 78 to 310
150 to 390

Thermal Properties

Latent Heat of Fusion, J/g 200
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 1040
900
Melting Onset (Solidus), °C 1010
890
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 180
120
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
27
Electrical Conductivity: Equal Weight (Specific), % IACS 43
30

Otherwise Unclassified Properties

Base Metal Price, % relative 29
23
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 310
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
38 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
110 to 750
Stiffness to Weight: Axial, points 7.1
7.2
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 8.7 to 13
13 to 18
Strength to Weight: Bending, points 11 to 14
14 to 18
Thermal Diffusivity, mm2/s 54
39
Thermal Shock Resistance, points 9.6 to 15
12 to 17

Alloy Composition


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Copper (Cu), % 87.5 to 90.5
58 to 62
Iron (Fe), % 0 to 0.1
0 to 0.15
Lead (Pb), % 1.3 to 2.5
0.6 to 1.2
Nickel (Ni), % 0 to 0.7
0
Zinc (Zn), % 5.8 to 11.2
36.3 to 41.4
Residuals, % 0 to 0.4
0 to 0.4