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EN 1.4959 Stainless Steel vs. 240.0 Aluminum

EN 1.4959 stainless steel belongs to the iron alloys classification, while 240.0 aluminum belongs to the aluminum alloys. There are 29 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 1.4959 stainless steel and the bottom bar is 240.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 40
1.0
Fatigue Strength, MPa 170
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 630
240
Tensile Strength: Yield (Proof), MPa 190
200

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1090
180
Melting Completion (Liquidus), °C 1400
600
Melting Onset (Solidus), °C 1350
520
Specific Heat Capacity, J/kg-K 480
860
Thermal Conductivity, W/m-K 12
96
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
65

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 8.0
3.2
Embodied Carbon, kg CO2/kg material 5.4
8.7
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 96
280
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
43
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 20
26
Thermal Diffusivity, mm2/s 3.2
35
Thermal Shock Resistance, points 15
11

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
81.7 to 86.9
Carbon (C), % 0.050 to 0.1
0
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
7.0 to 9.0
Iron (Fe), % 39.4 to 50.5
0 to 0.5
Magnesium (Mg), % 0
5.5 to 6.5
Manganese (Mn), % 0 to 1.5
0.3 to 0.7
Nickel (Ni), % 30 to 34
0.3 to 0.7
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.25 to 0.65
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15