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EN 1.4658 Stainless Steel vs. 384.0 Aluminum

EN 1.4658 stainless steel belongs to the iron alloys classification, while 384.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4658 stainless steel and the bottom bar is 384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
85
Elastic (Young's, Tensile) Modulus, GPa 210
74
Elongation at Break, % 28
2.5
Fatigue Strength, MPa 530
140
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 81
28
Shear Strength, MPa 580
200
Tensile Strength: Ultimate (UTS), MPa 900
330
Tensile Strength: Yield (Proof), MPa 730
170

Thermal Properties

Latent Heat of Fusion, J/g 300
550
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1450
580
Melting Onset (Solidus), °C 1400
530
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 16
96
Thermal Expansion, µm/m-K 13
21

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 4.5
7.4
Embodied Energy, MJ/kg 61
140
Embodied Water, L/kg 200
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 32
32
Strength to Weight: Bending, points 26
37
Thermal Diffusivity, mm2/s 4.3
39
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 0
77.3 to 86.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
3.0 to 4.5
Iron (Fe), % 50.9 to 63.7
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0 to 0.5
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
10.5 to 12
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5