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CC751S Brass vs. C87900 Brass

Both CC751S brass and C87900 brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 98% of their average alloy composition in common. There are 28 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 CC751S brass and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 5.6
25
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 450
480
Tensile Strength: Yield (Proof), MPa 320
240

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 850
930
Melting Onset (Solidus), °C 810
900
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
15
Electrical Conductivity: Equal Weight (Specific), % IACS 28
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
24
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 330
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
100
Resilience: Unit (Modulus of Resilience), kJ/m3 480
270
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
20
Strength to Weight: Axial, points 15
17
Strength to Weight: Bending, points 16
17
Thermal Diffusivity, mm2/s 35
37
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0 to 0.15
Antimony (Sb), % 0 to 0.5
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 62.7 to 66
63 to 69.2
Iron (Fe), % 0.25 to 0.5
0 to 0.4
Lead (Pb), % 0.8 to 2.2
0 to 0.25
Manganese (Mn), % 0 to 0.15
0 to 0.15
Nickel (Ni), % 0 to 0.8
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.65 to 1.1
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.8
0 to 0.25
Zinc (Zn), % 27.9 to 35.6
30 to 36