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C47940 Brass vs. C97600 Dairy Metal

Both C47940 brass and C97600 dairy metal are copper alloys. They have 75% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C47940 brass and the bottom bar is C97600 dairy metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
120
Elongation at Break, % 14 to 34
11
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
46
Tensile Strength: Ultimate (UTS), MPa 380 to 520
310
Tensile Strength: Yield (Proof), MPa 160 to 390
140

Thermal Properties

Latent Heat of Fusion, J/g 170
210
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 850
1140
Melting Onset (Solidus), °C 800
1110
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 110
22
Thermal Expansion, µm/m-K 20
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
37
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 2.8
4.6
Embodied Energy, MJ/kg 47
69
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 100
29
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 740
85
Stiffness to Weight: Axial, points 7.1
7.7
Stiffness to Weight: Bending, points 19
19
Strength to Weight: Axial, points 13 to 17
9.8
Strength to Weight: Bending, points 14 to 17
12
Thermal Diffusivity, mm2/s 36
6.5
Thermal Shock Resistance, points 13 to 17
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 63 to 66
63 to 67
Iron (Fe), % 0.1 to 1.0
0 to 1.5
Lead (Pb), % 1.0 to 2.0
3.0 to 5.0
Nickel (Ni), % 0.1 to 0.5
19 to 21.5
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 1.2 to 2.0
3.5 to 4.0
Zinc (Zn), % 28.1 to 34.6
3.0 to 9.0
Residuals, % 0
0 to 0.3