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AISI 304 Stainless Steel vs. EN AC-44200 Aluminum

AISI 304 stainless steel belongs to the iron alloys classification, while EN AC-44200 aluminum belongs to the aluminum 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 AISI 304 stainless steel and the bottom bar is EN AC-44200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 360
60
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 8.0 to 43
6.2
Fatigue Strength, MPa 210 to 440
63
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
180
Tensile Strength: Yield (Proof), MPa 230 to 860
86

Thermal Properties

Latent Heat of Fusion, J/g 290
570
Maximum Temperature: Mechanical, °C 710
170
Melting Completion (Liquidus), °C 1450
590
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
130

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.8
2.5
Embodied Carbon, kg CO2/kg material 3.0
7.7
Embodied Energy, MJ/kg 43
140
Embodied Water, L/kg 150
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
51
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 21 to 42
20
Strength to Weight: Bending, points 20 to 32
28
Thermal Diffusivity, mm2/s 4.2
59
Thermal Shock Resistance, points 12 to 25
8.4

Alloy Composition

Aluminum (Al), % 0
85.2 to 89.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 66.5 to 74
0 to 0.55
Manganese (Mn), % 0 to 2.0
0 to 0.35
Nickel (Ni), % 8.0 to 10.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
10.5 to 13.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15