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EN 1.4017 Stainless Steel vs. 295.0 Aluminum

EN 1.4017 stainless steel belongs to the iron alloys classification, while 295.0 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 EN 1.4017 stainless steel and the bottom bar is 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 14
2.0 to 7.2
Fatigue Strength, MPa 220
44 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 350
180 to 230
Tensile Strength: Ultimate (UTS), MPa 580
230 to 280
Tensile Strength: Yield (Proof), MPa 390
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 870
170
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1390
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 30
140
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.2
7.9
Embodied Energy, MJ/kg 31
150
Embodied Water, L/kg 120
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
5.2 to 13
Resilience: Unit (Modulus of Resilience), kJ/m3 380
77 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 21
21 to 26
Strength to Weight: Bending, points 20
27 to 32
Thermal Diffusivity, mm2/s 8.1
54
Thermal Shock Resistance, points 20
9.8 to 12

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.3
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 78.3 to 82.8
0 to 1.0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0 to 0.35
Nickel (Ni), % 1.2 to 1.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.7 to 1.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15