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CC492K Bronze vs. CC493K Bronze

Both CC492K bronze and CC493K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is CC492K bronze and the bottom bar is CC493K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78
74
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 14
14
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 280
270
Tensile Strength: Yield (Proof), MPa 150
140

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 1000
960
Melting Onset (Solidus), °C 900
880
Specific Heat Capacity, J/kg-K 370
360
Thermal Conductivity, W/m-K 73
61
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
12
Electrical Conductivity: Equal Weight (Specific), % IACS 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
32
Density, g/cm3 8.8
8.9
Embodied Carbon, kg CO2/kg material 3.4
3.3
Embodied Energy, MJ/kg 54
53
Embodied Water, L/kg 370
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
33
Resilience: Unit (Modulus of Resilience), kJ/m3 100
89
Stiffness to Weight: Axial, points 6.8
6.5
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.7
8.6
Strength to Weight: Bending, points 11
11
Thermal Diffusivity, mm2/s 23
19
Thermal Shock Resistance, points 10
10

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.25
0 to 0.3
Copper (Cu), % 83 to 89
79 to 86
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 2.5 to 3.5
5.0 to 8.0
Nickel (Ni), % 0 to 2.0
0 to 2.0
Phosphorus (P), % 0 to 0.1
0 to 0.1
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.1
0 to 0.1
Tin (Sn), % 6.0 to 8.0
5.2 to 8.0
Zinc (Zn), % 1.5 to 3.0
2.0 to 5.0