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C68400 Brass vs. C66900 Brass

Both C68400 brass and C66900 brass are copper alloys. They have 87% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
1.1 to 26
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
45
Shear Strength, MPa 330
290 to 440
Tensile Strength: Ultimate (UTS), MPa 540
460 to 770
Tensile Strength: Yield (Proof), MPa 310
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 210
190
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 840
860
Melting Onset (Solidus), °C 820
850
Specific Heat Capacity, J/kg-K 400
400
Thermal Expansion, µm/m-K 20
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
23
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 460
460 to 2450
Stiffness to Weight: Axial, points 7.5
8.1
Stiffness to Weight: Bending, points 20
20
Strength to Weight: Axial, points 19
15 to 26
Strength to Weight: Bending, points 19
16 to 23
Thermal Shock Resistance, points 18
14 to 23

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
62.5 to 64.5
Iron (Fe), % 0 to 1.0
0 to 0.25
Lead (Pb), % 0 to 0.090
0 to 0.050
Manganese (Mn), % 0.2 to 1.5
11.5 to 12.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
22.5 to 26
Residuals, % 0 to 0.5
0 to 0.2