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CC751S Brass vs. CC752S Brass

Both CC751S brass and CC752S brass are copper alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is CC751S brass and the bottom bar is CC752S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
100
Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 5.6
8.4
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 450
350
Tensile Strength: Yield (Proof), MPa 320
190

Thermal Properties

Latent Heat of Fusion, J/g 190
170
Maximum Temperature: Mechanical, °C 130
130
Melting Completion (Liquidus), °C 850
840
Melting Onset (Solidus), °C 810
800
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 20
21

Electrical Properties

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

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
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
25
Resilience: Unit (Modulus of Resilience), kJ/m3 480
180
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 15
12
Strength to Weight: Bending, points 16
13
Thermal Diffusivity, mm2/s 35
35
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0.3 to 0.7
Antimony (Sb), % 0 to 0.5
0 to 0.14
Arsenic (As), % 0
0.040 to 0.14
Copper (Cu), % 62.7 to 66
61.5 to 64.5
Iron (Fe), % 0.25 to 0.5
0 to 0.3
Lead (Pb), % 0.8 to 2.2
1.5 to 2.2
Manganese (Mn), % 0 to 0.15
0 to 0.1
Nickel (Ni), % 0 to 0.8
0 to 0.2
Silicon (Si), % 0.65 to 1.1
0 to 0.020
Tin (Sn), % 0 to 0.8
0 to 0.3
Zinc (Zn), % 27.9 to 35.6
31.5 to 36.7