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CC491K Bronze vs. C21000 Brass

Both CC491K bronze and C21000 brass are copper alloys. They have 89% of their average alloy composition in common. There are 28 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 CC491K bronze and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 13
2.9 to 50
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 260
240 to 450
Tensile Strength: Yield (Proof), MPa 120
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 980
1070
Melting Onset (Solidus), °C 900
1050
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 71
230
Thermal Expansion, µm/m-K 19
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
56
Electrical Conductivity: Equal Weight (Specific), % IACS 15
57

Otherwise Unclassified Properties

Base Metal Price, % relative 31
30
Density, g/cm3 8.9
8.8
Embodied Carbon, kg CO2/kg material 3.1
2.6
Embodied Energy, MJ/kg 51
42
Embodied Water, L/kg 350
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 67
21 to 830
Stiffness to Weight: Axial, points 6.7
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 8.1
7.4 to 14
Strength to Weight: Bending, points 10
9.6 to 15
Thermal Diffusivity, mm2/s 22
69
Thermal Shock Resistance, points 9.3
8.1 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 81 to 87
94 to 96
Iron (Fe), % 0 to 0.3
0 to 0.050
Lead (Pb), % 4.0 to 6.0
0 to 0.030
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
3.7 to 6.0
Residuals, % 0
0 to 0.2