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EN 1.4310 Stainless Steel vs. A384.0 Aluminum

EN 1.4310 stainless steel belongs to the iron alloys classification, while A384.0 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 1.4310 stainless steel and the bottom bar is A384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
74
Elongation at Break, % 14 to 45
2.5
Fatigue Strength, MPa 240 to 330
140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
28
Shear Strength, MPa 510 to 550
200
Tensile Strength: Ultimate (UTS), MPa 730 to 900
330
Tensile Strength: Yield (Proof), MPa 260 to 570
170

Thermal Properties

Latent Heat of Fusion, J/g 290
550
Maximum Temperature: Mechanical, °C 910
170
Melting Completion (Liquidus), °C 1420
610
Melting Onset (Solidus), °C 1380
510
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
96
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
23
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
73

Otherwise Unclassified Properties

Base Metal Price, % relative 14
11
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 2.9
7.5
Embodied Energy, MJ/kg 42
140
Embodied Water, L/kg 140
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 26 to 32
32
Strength to Weight: Bending, points 23 to 27
38
Thermal Diffusivity, mm2/s 4.0
39
Thermal Shock Resistance, points 15 to 18
15

Alloy Composition

Aluminum (Al), % 0
79.3 to 86.5
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 16 to 19
0
Copper (Cu), % 0
3.0 to 4.5
Iron (Fe), % 66.4 to 78
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
0 to 0.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 2.0
10.5 to 12
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5