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1235 Aluminum vs. EN 1.4982 Stainless Steel

1235 aluminum belongs to the aluminum alloys classification, while EN 1.4982 stainless steel belongs to the iron alloys. There are 30 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 1235 aluminum and the bottom bar is EN 1.4982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 28 to 34
28
Fatigue Strength, MPa 23 to 58
420
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 52 to 56
490
Tensile Strength: Ultimate (UTS), MPa 80 to 84
750
Tensile Strength: Yield (Proof), MPa 23 to 57
570

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 170
860
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 640
1390
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
13
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.9
Embodied Energy, MJ/kg 160
71
Embodied Water, L/kg 1190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
190
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 8.2 to 8.6
27
Strength to Weight: Bending, points 15 to 16
23
Thermal Diffusivity, mm2/s 93
3.4
Thermal Shock Resistance, points 3.6 to 3.7
17

Alloy Composition

Aluminum (Al), % 99.35 to 100
0
Boron (B), % 0
0.0030 to 0.0090
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
14 to 16
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.65
61.8 to 69.7
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
5.5 to 7.0
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0
9.0 to 11
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.65
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0.15 to 0.4
Zinc (Zn), % 0 to 0.1
0