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EN 1.4938 Stainless Steel vs. 360.0 Aluminum

EN 1.4938 stainless steel belongs to the iron alloys classification, while 360.0 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 1.4938 stainless steel and the bottom bar is 360.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 16 to 17
2.5
Fatigue Strength, MPa 390 to 520
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 540 to 630
190
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
300
Tensile Strength: Yield (Proof), MPa 640 to 870
170

Thermal Properties

Latent Heat of Fusion, J/g 270
530
Maximum Temperature: Mechanical, °C 750
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 30
130
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
34
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 3.3
7.8
Embodied Energy, MJ/kg 47
140
Embodied Water, L/kg 110
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
6.4
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 31 to 37
32
Strength to Weight: Bending, points 26 to 29
38
Thermal Diffusivity, mm2/s 8.1
55
Thermal Shock Resistance, points 30 to 35
14

Alloy Composition

Aluminum (Al), % 0
85.1 to 90.6
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 80.5 to 84.8
0 to 2.0
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0.4 to 0.9
0 to 0.35
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0 to 0.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
9.0 to 10
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.15
Vanadium (V), % 0.25 to 0.4
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25