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C68400 Brass vs. C99400 Brass

Both C68400 brass and C99400 brass are copper alloys. They have 67% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C68400 brass and the bottom bar is C99400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 41
44
Tensile Strength: Ultimate (UTS), MPa 540
460 to 550
Tensile Strength: Yield (Proof), MPa 310
230 to 370

Thermal Properties

Latent Heat of Fusion, J/g 210
230
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 840
1070
Melting Onset (Solidus), °C 820
1020
Specific Heat Capacity, J/kg-K 400
400
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
17
Electrical Conductivity: Equal Weight (Specific), % IACS 99
17

Otherwise Unclassified Properties

Base Metal Price, % relative 23
30
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 47
45
Embodied Water, L/kg 320
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 460
230 to 590
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
15 to 17
Strength to Weight: Bending, points 19
15 to 17
Thermal Shock Resistance, points 18
16 to 19

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0.5 to 2.0
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
83.5 to 96.5
Iron (Fe), % 0 to 1.0
1.0 to 3.0
Lead (Pb), % 0 to 0.090
0 to 0.25
Manganese (Mn), % 0.2 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
1.0 to 3.5
Phosphorus (P), % 0.030 to 0.3
0
Silicon (Si), % 1.5 to 2.5
0.5 to 2.0
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 28.6 to 39.3
0.5 to 5.0
Residuals, % 0 to 0.5
0 to 0.3