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C51100 Bronze vs. C68700 Brass

Both C51100 bronze and C68700 brass are copper alloys. They have 78% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C51100 bronze and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 42
41
Tensile Strength: Ultimate (UTS), MPa 330 to 720
390
Tensile Strength: Yield (Proof), MPa 93 to 700
140

Thermal Properties

Latent Heat of Fusion, J/g 200
190
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 1060
970
Melting Onset (Solidus), °C 970
930
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 84
100
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
23
Electrical Conductivity: Equal Weight (Specific), % IACS 20
25

Otherwise Unclassified Properties

Base Metal Price, % relative 32
26
Density, g/cm3 8.9
8.3
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 48
46
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 38 to 2170
90
Stiffness to Weight: Axial, points 7.1
7.3
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 10 to 22
13
Strength to Weight: Bending, points 12 to 20
14
Thermal Diffusivity, mm2/s 25
30
Thermal Shock Resistance, points 12 to 26
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 93.8 to 96.5
76 to 79
Iron (Fe), % 0 to 0.1
0 to 0.060
Lead (Pb), % 0 to 0.050
0 to 0.070
Phosphorus (P), % 0.030 to 0.35
0
Tin (Sn), % 3.5 to 4.9
0
Zinc (Zn), % 0 to 0.3
17.8 to 22.2
Residuals, % 0
0 to 0.5