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C37100 Brass vs. EN AC-21100 Aluminum

C37100 brass belongs to the copper alloys classification, while EN AC-21100 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C37100 brass and the bottom bar is EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Elongation at Break, % 8.0 to 40
6.2 to 7.3
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 370 to 520
340 to 350
Tensile Strength: Yield (Proof), MPa 150 to 390
210 to 240

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 900
670
Melting Onset (Solidus), °C 890
550
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
34
Electrical Conductivity: Equal Weight (Specific), % IACS 30
100

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.0
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
300 to 400
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
46
Strength to Weight: Axial, points 13 to 18
31 to 33
Strength to Weight: Bending, points 14 to 18
36 to 37
Thermal Diffusivity, mm2/s 39
48
Thermal Shock Resistance, points 12 to 17
15

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.7
Copper (Cu), % 58 to 62
4.2 to 5.2
Iron (Fe), % 0 to 0.15
0 to 0.19
Lead (Pb), % 0.6 to 1.2
0
Manganese (Mn), % 0
0 to 0.55
Silicon (Si), % 0
0 to 0.18
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 36.3 to 41.4
0 to 0.070
Residuals, % 0
0 to 0.1