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CC751S Brass vs. C21000 Brass

Both CC751S brass and C21000 brass are copper alloys. They have 69% 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 CC751S brass and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
2.9 to 50
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 450
240 to 450
Tensile Strength: Yield (Proof), MPa 320
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 190
200
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 850
1070
Melting Onset (Solidus), °C 810
1050
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 110
230
Thermal Expansion, µm/m-K 20
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
56
Electrical Conductivity: Equal Weight (Specific), % IACS 28
57

Otherwise Unclassified Properties

Base Metal Price, % relative 24
30
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
42
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 480
21 to 830
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 15
7.4 to 14
Strength to Weight: Bending, points 16
9.6 to 15
Thermal Diffusivity, mm2/s 35
69
Thermal Shock Resistance, points 15
8.1 to 15

Alloy Composition


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Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 62.7 to 66
94 to 96
Iron (Fe), % 0.25 to 0.5
0 to 0.050
Lead (Pb), % 0.8 to 2.2
0 to 0.030
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.8
0
Silicon (Si), % 0.65 to 1.1
0
Tin (Sn), % 0 to 0.8
0
Zinc (Zn), % 27.9 to 35.6
3.7 to 6.0
Residuals, % 0
0 to 0.2