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C86700 Bronze vs. C99700 Brass

Both C86700 bronze and C99700 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 86% of their average alloy composition in common. There are 26 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 C86700 bronze and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 17
25
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
46
Tensile Strength: Ultimate (UTS), MPa 630
380
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 180
200
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 880
900
Melting Onset (Solidus), °C 860
880
Specific Heat Capacity, J/kg-K 400
410
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 19
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
25
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 340
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
78
Resilience: Unit (Modulus of Resilience), kJ/m3 290
120
Stiffness to Weight: Axial, points 7.5
8.3
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 22
13
Strength to Weight: Bending, points 21
14
Thermal Shock Resistance, points 21
11

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0.5 to 3.0
Copper (Cu), % 55 to 60
54 to 65.5
Iron (Fe), % 1.0 to 3.0
0 to 1.0
Lead (Pb), % 0.5 to 1.5
0 to 2.0
Manganese (Mn), % 1.0 to 3.5
11 to 15
Nickel (Ni), % 0 to 1.0
4.0 to 6.0
Tin (Sn), % 0 to 1.5
0 to 1.0
Zinc (Zn), % 30 to 38
19 to 25
Residuals, % 0
0 to 0.3