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C92700 Bronze vs. C92900 Bronze

Both C92700 bronze and C92900 bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 98% of their average alloy composition in common. There are 28 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 C92700 bronze and the bottom bar is C92900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 9.1
9.1
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 290
350
Tensile Strength: Yield (Proof), MPa 150
190

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 980
1030
Melting Onset (Solidus), °C 840
860
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 47
58
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 35
35
Density, g/cm3 8.7
8.8
Embodied Carbon, kg CO2/kg material 3.6
3.8
Embodied Energy, MJ/kg 58
61
Embodied Water, L/kg 390
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
27
Resilience: Unit (Modulus of Resilience), kJ/m3 110
170
Stiffness to Weight: Axial, points 6.8
6.8
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 9.1
11
Strength to Weight: Bending, points 11
13
Thermal Diffusivity, mm2/s 15
18
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0050
Antimony (Sb), % 0 to 0.25
0 to 0.25
Copper (Cu), % 86 to 89
82 to 86
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 1.0 to 2.5
2.0 to 3.2
Nickel (Ni), % 0 to 1.0
2.8 to 4.0
Phosphorus (P), % 0 to 1.5
0 to 1.5
Silicon (Si), % 0 to 0.0050
0 to 0.0050
Sulfur (S), % 0 to 0.050
0 to 0.050
Tin (Sn), % 9.0 to 11
9.0 to 11
Zinc (Zn), % 0 to 0.7
0 to 0.25
Residuals, % 0
0 to 0.7