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1200 Aluminum vs. EN 1.4458 Stainless Steel

1200 aluminum belongs to the aluminum alloys classification, while EN 1.4458 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 1200 aluminum and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23 to 48
150
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 1.1 to 28
34
Fatigue Strength, MPa 25 to 69
150
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 85 to 180
510
Tensile Strength: Yield (Proof), MPa 28 to 160
190

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 660
1420
Melting Onset (Solidus), °C 650
1370
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
16
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 190
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
30
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.2
5.4
Embodied Energy, MJ/kg 150
75
Embodied Water, L/kg 1190
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0 to 19
140
Resilience: Unit (Modulus of Resilience), kJ/m3 5.7 to 180
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 8.7 to 19
17
Strength to Weight: Bending, points 16 to 26
18
Thermal Diffusivity, mm2/s 92
4.2
Thermal Shock Resistance, points 3.8 to 8.1
12

Alloy Composition

Aluminum (Al), % 99 to 100
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0 to 0.050
0 to 2.0
Iron (Fe), % 0 to 1.0
40.2 to 53
Manganese (Mn), % 0 to 0.050
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0