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EN 1.4959 Stainless Steel vs. 359.0 Aluminum

EN 1.4959 stainless steel belongs to the iron alloys classification, while 359.0 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 EN 1.4959 stainless steel and the bottom bar is 359.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 40
3.8 to 4.9
Fatigue Strength, MPa 170
100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 430
220 to 230
Tensile Strength: Ultimate (UTS), MPa 630
340 to 350
Tensile Strength: Yield (Proof), MPa 190
250 to 280

Thermal Properties

Latent Heat of Fusion, J/g 300
530
Maximum Temperature: Mechanical, °C 1090
170
Melting Completion (Liquidus), °C 1400
600
Melting Onset (Solidus), °C 1350
570
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 12
140
Thermal Expansion, µm/m-K 15
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.0
2.6
Embodied Carbon, kg CO2/kg material 5.4
8.0
Embodied Energy, MJ/kg 76
150
Embodied Water, L/kg 200
1090

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
12 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 96
450 to 540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 22
37 to 38
Strength to Weight: Bending, points 20
42 to 43
Thermal Diffusivity, mm2/s 3.2
59
Thermal Shock Resistance, points 15
16 to 17

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
88.9 to 91
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
0 to 0.2
Iron (Fe), % 39.4 to 50.5
0 to 0.2
Magnesium (Mg), % 0
0.5 to 0.7
Manganese (Mn), % 0 to 1.5
0 to 0.1
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
8.5 to 9.5
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