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1235 Aluminum vs. EN 1.0234 Steel

1235 aluminum belongs to the aluminum alloys classification, while EN 1.0234 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 EN 1.0234 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 28 to 34
12 to 29
Fatigue Strength, MPa 23 to 58
170 to 270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 52 to 56
260 to 300
Tensile Strength: Ultimate (UTS), MPa 80 to 84
350 to 480
Tensile Strength: Yield (Proof), MPa 23 to 57
220 to 410

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 200
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 1190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
36 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
130 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 8.2 to 8.6
12 to 17
Strength to Weight: Bending, points 15 to 16
14 to 17
Thermal Diffusivity, mm2/s 93
14
Thermal Shock Resistance, points 3.6 to 3.7
11 to 15

Alloy Composition

Aluminum (Al), % 99.35 to 100
0.020 to 0.060
Carbon (C), % 0
0.13 to 0.17
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.65
99.02 to 99.5
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.65
0 to 0.1
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0