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C99750 Brass vs. C70260 Copper

Both C99750 brass and C70260 copper are copper alloys. They have 60% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C99750 brass and the bottom bar is C70260 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
120
Elongation at Break, % 20 to 30
9.5 to 19
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 48
44
Tensile Strength: Ultimate (UTS), MPa 450 to 520
520 to 760
Tensile Strength: Yield (Proof), MPa 220 to 280
410 to 650

Thermal Properties

Latent Heat of Fusion, J/g 200
220
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 840
1060
Melting Onset (Solidus), °C 820
1040
Specific Heat Capacity, J/kg-K 410
390
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
40 to 51

Otherwise Unclassified Properties

Base Metal Price, % relative 23
31
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 51
43
Embodied Water, L/kg 310
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 110
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 300
710 to 1810
Stiffness to Weight: Axial, points 8.6
7.3
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 15 to 18
16 to 24
Strength to Weight: Bending, points 16 to 18
16 to 21
Thermal Shock Resistance, points 13 to 15
18 to 27

Alloy Composition


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Aluminum (Al), % 0.25 to 3.0
0
Copper (Cu), % 55 to 61
95.8 to 98.8
Iron (Fe), % 0 to 1.0
0
Lead (Pb), % 0.5 to 2.5
0
Manganese (Mn), % 17 to 23
0
Nickel (Ni), % 0 to 5.0
1.0 to 3.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.2 to 0.7
Zinc (Zn), % 17 to 23
0
Residuals, % 0 to 0.3
0 to 0.5