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CC751S Brass vs. C84500 Brass

Both CC751S brass and C84500 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is CC751S brass and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
55
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 5.6
28
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 450
240
Tensile Strength: Yield (Proof), MPa 320
97

Thermal Properties

Latent Heat of Fusion, J/g 190
180
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 850
980
Melting Onset (Solidus), °C 810
840
Specific Heat Capacity, J/kg-K 390
360
Thermal Conductivity, W/m-K 110
72
Thermal Expansion, µm/m-K 20
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
16
Electrical Conductivity: Equal Weight (Specific), % IACS 28
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
28
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 2.8
2.9
Embodied Energy, MJ/kg 46
47
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
54
Resilience: Unit (Modulus of Resilience), kJ/m3 480
45
Stiffness to Weight: Axial, points 7.2
6.6
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 15
7.7
Strength to Weight: Bending, points 16
9.8
Thermal Diffusivity, mm2/s 35
23
Thermal Shock Resistance, points 15
8.6

Alloy Composition


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Aluminum (Al), % 0 to 0.1
0 to 0.0050
Antimony (Sb), % 0 to 0.5
0 to 0.25
Copper (Cu), % 62.7 to 66
77 to 79
Iron (Fe), % 0.25 to 0.5
0 to 0.4
Lead (Pb), % 0.8 to 2.2
6.0 to 7.5
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.8
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.65 to 1.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.8
2.0 to 4.0
Zinc (Zn), % 27.9 to 35.6
10 to 14
Residuals, % 0
0 to 0.7