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EN 1.4982 Stainless Steel vs. EN AC-71100 Aluminum

EN 1.4982 stainless steel belongs to the iron alloys classification, while EN AC-71100 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.4982 stainless steel and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
110
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 28
1.1
Fatigue Strength, MPa 420
150
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 750
260
Tensile Strength: Yield (Proof), MPa 570
230

Thermal Properties

Latent Heat of Fusion, J/g 290
490
Maximum Temperature: Mechanical, °C 860
170
Melting Completion (Liquidus), °C 1430
580
Melting Onset (Solidus), °C 1390
520
Specific Heat Capacity, J/kg-K 470
860
Thermal Expansion, µm/m-K 16
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
97

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 4.9
7.4
Embodied Energy, MJ/kg 71
140
Embodied Water, L/kg 150
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 830
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
31
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0
78.7 to 83.3
Boron (B), % 0.0030 to 0.0090
0
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 61.8 to 69.7
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 5.5 to 7.0
0 to 0.15
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 9.0 to 11
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
7.5 to 9.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Vanadium (V), % 0.15 to 0.4
0
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15