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CC498K Bronze vs. CC499K Bronze

Both CC498K bronze and CC499K bronze are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is CC498K bronze and the bottom bar is CC499K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78
73
Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 14
13
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 41
41
Tensile Strength: Ultimate (UTS), MPa 260
260
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1000
1000
Melting Onset (Solidus), °C 920
920
Specific Heat Capacity, J/kg-K 370
370
Thermal Conductivity, W/m-K 73
73
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
12
Electrical Conductivity: Equal Weight (Specific), % IACS 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
32
Density, g/cm3 8.8
8.8
Embodied Carbon, kg CO2/kg material 3.2
3.1
Embodied Energy, MJ/kg 52
51
Embodied Water, L/kg 360
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
27
Resilience: Unit (Modulus of Resilience), kJ/m3 72
65
Stiffness to Weight: Axial, points 6.9
6.9
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
8.1
Strength to Weight: Bending, points 10
10
Thermal Diffusivity, mm2/s 22
22
Thermal Shock Resistance, points 9.3
9.2

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.010
Antimony (Sb), % 0 to 0.25
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.020
Cadmium (Cd), % 0
0 to 0.020
Chromium (Cr), % 0
0 to 0.020
Copper (Cu), % 85 to 90
84 to 88
Iron (Fe), % 0 to 0.25
0 to 0.3
Lead (Pb), % 1.0 to 2.0
0 to 3.0
Nickel (Ni), % 0 to 1.0
0 to 0.6
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0 to 0.1
0 to 0.040
Tin (Sn), % 5.5 to 6.5
4.0 to 6.0
Zinc (Zn), % 3.0 to 5.0
4.0 to 6.0