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EN 1.4303 Stainless Steel vs. 535.0 Aluminum

EN 1.4303 stainless steel belongs to the iron alloys classification, while 535.0 aluminum belongs to the aluminum alloys. There are 31 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 EN 1.4303 stainless steel and the bottom bar is 535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
70
Elastic (Young's, Tensile) Modulus, GPa 200
67
Elongation at Break, % 13 to 49
10
Fatigue Strength, MPa 220 to 320
70
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
25
Shear Strength, MPa 420 to 540
190
Tensile Strength: Ultimate (UTS), MPa 590 to 900
270
Tensile Strength: Yield (Proof), MPa 230 to 560
140

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1420
630
Melting Onset (Solidus), °C 1380
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
79

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.2
9.4
Embodied Energy, MJ/kg 46
160
Embodied Water, L/kg 150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
24
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 21 to 32
28
Strength to Weight: Bending, points 20 to 26
35
Thermal Diffusivity, mm2/s 4.0
42
Thermal Shock Resistance, points 13 to 20
12

Alloy Composition

Aluminum (Al), % 0
91.5 to 93.6
Beryllium (Be), % 0
0.0030 to 0.0070
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 64.8 to 72
0 to 0.15
Magnesium (Mg), % 0
6.2 to 7.5
Manganese (Mn), % 0 to 2.0
0.1 to 0.25
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 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15