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AISI 202 Stainless Steel vs. EN AC-45400 Aluminum

AISI 202 stainless steel belongs to the iron alloys classification, while EN AC-45400 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 AISI 202 stainless steel and the bottom bar is EN AC-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 300
86
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 14 to 45
6.7
Fatigue Strength, MPa 290 to 330
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 700 to 980
260
Tensile Strength: Yield (Proof), MPa 310 to 580
130

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1360
560
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
95

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 2.8
7.8
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 150
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
14
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 840
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 25 to 35
25
Strength to Weight: Bending, points 23 to 29
32
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 15 to 21
12

Alloy Composition

Aluminum (Al), % 0
88.4 to 92.9
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 63.5 to 71.5
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 7.5 to 10
0 to 0.55
Nickel (Ni), % 4.0 to 6.0
0 to 0.1
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15