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C12900 Copper vs. C44400 Brass

Both C12900 copper and C44400 brass 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 (4, in this case) are not shown.

For each property being compared, the top bar is C12900 copper and the bottom bar is C44400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
41
Tensile Strength: Ultimate (UTS), MPa 220 to 420
350
Tensile Strength: Yield (Proof), MPa 75 to 380
120

Thermal Properties

Latent Heat of Fusion, J/g 210
180
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 1080
940
Melting Onset (Solidus), °C 1030
900
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 380
110
Thermal Expansion, µm/m-K 17
20

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 32
26
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 41
46
Embodied Water, L/kg 330
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 640
65
Stiffness to Weight: Axial, points 7.2
7.2
Stiffness to Weight: Bending, points 18
19
Strength to Weight: Axial, points 6.8 to 13
12
Strength to Weight: Bending, points 9.1 to 14
13
Thermal Diffusivity, mm2/s 110
35
Thermal Shock Resistance, points 7.8 to 15
12

Alloy Composition

Antimony (Sb), % 0 to 0.0030
0.020 to 0.1
Arsenic (As), % 0 to 0.012
0
Bismuth (Bi), % 0 to 0.0030
0
Copper (Cu), % 99.88 to 100
70 to 73
Iron (Fe), % 0
0 to 0.060
Lead (Pb), % 0 to 0.0040
0 to 0.070
Nickel (Ni), % 0 to 0.050
0
Silver (Ag), % 0 to 0.054
0
Tellurium (Te), % 0 to 0.025
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 0
25.2 to 29.1
Residuals, % 0
0 to 0.4