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C68400 Brass vs. C97600 Dairy Metal

Both C68400 brass and C97600 dairy metal are copper alloys. They have 69% 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 C68400 brass and the bottom bar is C97600 dairy metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 18
11
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
46
Tensile Strength: Ultimate (UTS), MPa 540
310
Tensile Strength: Yield (Proof), MPa 310
140

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 840
1140
Melting Onset (Solidus), °C 820
1110
Specific Heat Capacity, J/kg-K 400
380
Thermal Conductivity, W/m-K 66
22
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 23
37
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 2.7
4.6
Embodied Energy, MJ/kg 47
69
Embodied Water, L/kg 320
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
29
Resilience: Unit (Modulus of Resilience), kJ/m3 460
85
Stiffness to Weight: Axial, points 7.5
7.7
Stiffness to Weight: Bending, points 20
19
Strength to Weight: Axial, points 19
9.8
Strength to Weight: Bending, points 19
12
Thermal Diffusivity, mm2/s 21
6.5
Thermal Shock Resistance, points 18
11

Alloy Composition


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Aluminum (Al), % 0 to 0.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Boron (B), % 0.0010 to 0.030
0
Copper (Cu), % 59 to 64
63 to 67
Iron (Fe), % 0 to 1.0
0 to 1.5
Lead (Pb), % 0 to 0.090
3.0 to 5.0
Manganese (Mn), % 0.2 to 1.5
0
Nickel (Ni), % 0 to 0.5
19 to 21.5
Phosphorus (P), % 0.030 to 0.3
0 to 0.050
Silicon (Si), % 1.5 to 2.5
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.5
3.5 to 4.0
Zinc (Zn), % 28.6 to 39.3
3.0 to 9.0
Residuals, % 0 to 0.5
0 to 0.3