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C99750 Brass vs. C86700 Bronze

Both C99750 brass and C86700 bronze are copper alloys. They have 84% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C99750 brass and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 20 to 30
17
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 48
41
Tensile Strength: Ultimate (UTS), MPa 450 to 520
630
Tensile Strength: Yield (Proof), MPa 220 to 280
250

Thermal Properties

Latent Heat of Fusion, J/g 200
180
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 840
880
Melting Onset (Solidus), °C 820
860
Specific Heat Capacity, J/kg-K 410
400
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
17
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
19

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 3.1
2.9
Embodied Energy, MJ/kg 51
49
Embodied Water, L/kg 310
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
86
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
290
Stiffness to Weight: Axial, points 8.6
7.5
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 15 to 18
22
Strength to Weight: Bending, points 16 to 18
21
Thermal Shock Resistance, points 13 to 15
21

Alloy Composition

Aluminum (Al), % 0.25 to 3.0
1.0 to 3.0
Copper (Cu), % 55 to 61
55 to 60
Iron (Fe), % 0 to 1.0
1.0 to 3.0
Lead (Pb), % 0.5 to 2.5
0.5 to 1.5
Manganese (Mn), % 17 to 23
1.0 to 3.5
Nickel (Ni), % 0 to 5.0
0 to 1.0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 17 to 23
30 to 38
Residuals, % 0
0 to 1.0