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CC212E Bronze vs. CC490K Brass

Both CC212E bronze and CC490K brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 75% of their average alloy composition in common. There are 27 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 CC212E bronze and the bottom bar is CC490K brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
76
Elastic (Young's, Tensile) Modulus, GPa 130
110
Elongation at Break, % 20
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 47
40
Tensile Strength: Ultimate (UTS), MPa 710
230
Tensile Strength: Yield (Proof), MPa 310
110

Thermal Properties

Latent Heat of Fusion, J/g 230
190
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1080
980
Melting Onset (Solidus), °C 1020
910
Specific Heat Capacity, J/kg-K 440
370
Thermal Expansion, µm/m-K 18
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
16
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
16

Otherwise Unclassified Properties

Base Metal Price, % relative 27
30
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 3.4
2.9
Embodied Energy, MJ/kg 55
47
Embodied Water, L/kg 370
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
28
Resilience: Unit (Modulus of Resilience), kJ/m3 390
54
Stiffness to Weight: Axial, points 8.5
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 24
7.3
Strength to Weight: Bending, points 21
9.5
Thermal Shock Resistance, points 22
8.2

Alloy Composition

Aluminum (Al), % 7.0 to 9.0
0 to 0.010
Antimony (Sb), % 0
0 to 0.3
Copper (Cu), % 68 to 77
81 to 86
Iron (Fe), % 2.0 to 4.0
0 to 0.5
Lead (Pb), % 0 to 0.050
3.0 to 6.0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 8.0 to 15
0
Nickel (Ni), % 1.5 to 4.5
0 to 2.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 0.5
2.0 to 3.5
Zinc (Zn), % 0 to 1.0
7.0 to 9.5