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C44400 Brass vs. C18700 Copper

Both C44400 brass and C18700 copper are copper alloys. They have 72% 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 C44400 brass and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
43
Tensile Strength: Ultimate (UTS), MPa 350
290 to 330
Tensile Strength: Yield (Proof), MPa 120
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 180
210
Maximum Temperature: Mechanical, °C 140
200
Melting Completion (Liquidus), °C 940
1080
Melting Onset (Solidus), °C 900
950
Specific Heat Capacity, J/kg-K 380
380
Thermal Conductivity, W/m-K 110
380
Thermal Expansion, µm/m-K 20
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
98
Electrical Conductivity: Equal Weight (Specific), % IACS 27
99

Otherwise Unclassified Properties

Base Metal Price, % relative 26
30
Density, g/cm3 8.3
9.0
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 46
41
Embodied Water, L/kg 330
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 65
240 to 280
Stiffness to Weight: Axial, points 7.2
7.1
Stiffness to Weight: Bending, points 19
18
Strength to Weight: Axial, points 12
9.0 to 10
Strength to Weight: Bending, points 13
11 to 12
Thermal Diffusivity, mm2/s 35
110
Thermal Shock Resistance, points 12
10 to 12

Alloy Composition

Antimony (Sb), % 0.020 to 0.1
0
Copper (Cu), % 70 to 73
98 to 99.2
Iron (Fe), % 0 to 0.060
0
Lead (Pb), % 0 to 0.070
0.8 to 1.5
Tin (Sn), % 0.9 to 1.2
0
Zinc (Zn), % 25.2 to 29.1
0
Residuals, % 0
0 to 0.5