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1235 Aluminum vs. C49300 Brass

1235 aluminum belongs to the aluminum alloys classification, while C49300 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 1235 aluminum and the bottom bar is C49300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 28 to 34
4.5 to 20
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 52 to 56
270 to 290
Tensile Strength: Ultimate (UTS), MPa 80 to 84
430 to 520
Tensile Strength: Yield (Proof), MPa 23 to 57
210 to 410

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
880
Melting Onset (Solidus), °C 640
840
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 230
88
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
15
Electrical Conductivity: Equal Weight (Specific), % IACS 200
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 160
50
Embodied Water, L/kg 1190
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
220 to 800
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 8.2 to 8.6
15 to 18
Strength to Weight: Bending, points 15 to 16
16 to 18
Thermal Diffusivity, mm2/s 93
29
Thermal Shock Resistance, points 3.6 to 3.7
14 to 18

Alloy Composition

Aluminum (Al), % 99.35 to 100
0 to 0.5
Antimony (Sb), % 0
0 to 0.5
Bismuth (Bi), % 0
0.5 to 2.0
Copper (Cu), % 0 to 0.050
58 to 62
Iron (Fe), % 0 to 0.65
0 to 0.1
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 0.030
Nickel (Ni), % 0
0 to 1.5
Phosphorus (P), % 0
0 to 0.2
Selenium (Se), % 0
0 to 0.2
Silicon (Si), % 0 to 0.65
0 to 0.1
Tin (Sn), % 0
1.0 to 1.8
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
30.6 to 40.5
Residuals, % 0
0 to 0.5