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C43500 Brass vs. C68800 Brass

Both C43500 brass and C68800 brass are copper alloys. They have a moderately high 91% of their average alloy composition in common. There are 29 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 C43500 brass and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.5 to 46
2.0 to 36
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 42
41
Shear Strength, MPa 220 to 310
380 to 510
Tensile Strength: Ultimate (UTS), MPa 320 to 530
570 to 890
Tensile Strength: Yield (Proof), MPa 120 to 480
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 190
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 1000
960
Melting Onset (Solidus), °C 970
950
Specific Heat Capacity, J/kg-K 380
400
Thermal Conductivity, W/m-K 120
40
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
18
Electrical Conductivity: Equal Weight (Specific), % IACS 30
20

Otherwise Unclassified Properties

Base Metal Price, % relative 28
26
Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 45
48
Embodied Water, L/kg 320
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 120
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 1040
710 to 2860
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 10 to 17
19 to 30
Strength to Weight: Bending, points 12 to 17
19 to 25
Thermal Diffusivity, mm2/s 37
12
Thermal Shock Resistance, points 11 to 18
19 to 30

Alloy Composition

Aluminum (Al), % 0
3.0 to 3.8
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 79 to 83
70.8 to 75.5
Iron (Fe), % 0 to 0.050
0 to 0.2
Lead (Pb), % 0 to 0.090
0 to 0.050
Tin (Sn), % 0.6 to 1.2
0
Zinc (Zn), % 15.4 to 20.4
21.3 to 24.1
Residuals, % 0
0 to 0.5

Comparable Variants