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EN 1.4303 Stainless Steel vs. 3005 Aluminum

EN 1.4303 stainless steel belongs to the iron alloys classification, while 3005 aluminum belongs to the aluminum alloys. There are 31 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 EN 1.4303 stainless steel and the bottom bar is 3005 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
33 to 73
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 13 to 49
1.1 to 16
Fatigue Strength, MPa 220 to 320
53 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 420 to 540
84 to 150
Tensile Strength: Ultimate (UTS), MPa 590 to 900
140 to 270
Tensile Strength: Yield (Proof), MPa 230 to 560
51 to 240

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 940
180
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1380
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
140

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 3.2
8.2
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
2.2 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
18 to 390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 21 to 32
14 to 27
Strength to Weight: Bending, points 20 to 26
21 to 33
Thermal Diffusivity, mm2/s 4.0
64
Thermal Shock Resistance, points 13 to 20
6.0 to 12

Alloy Composition

Aluminum (Al), % 0
95.7 to 98.8
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 17 to 19
0 to 0.1
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 64.8 to 72
0 to 0.7
Magnesium (Mg), % 0
0.2 to 0.6
Manganese (Mn), % 0 to 2.0
1.0 to 1.5
Nickel (Ni), % 11 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants