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EN 1.4307 Stainless Steel vs. 1050A Aluminum

EN 1.4307 stainless steel belongs to the iron alloys classification, while 1050A aluminum belongs to the aluminum alloys. There are 31 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 1.4307 stainless steel and the bottom bar is 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 270
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 14 to 46
1.1 to 33
Fatigue Strength, MPa 190 to 320
22 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 410 to 550
44 to 97
Tensile Strength: Ultimate (UTS), MPa 590 to 900
68 to 170
Tensile Strength: Yield (Proof), MPa 200 to 570
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1430
660
Melting Onset (Solidus), °C 1380
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
230
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
59
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
200

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.0
8.2
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 140
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 210
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 810
3.7 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 21 to 32
6.9 to 18
Strength to Weight: Bending, points 20 to 27
14 to 25
Thermal Diffusivity, mm2/s 4.0
94
Thermal Shock Resistance, points 13 to 20
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 66.8 to 74.5
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.050
Nickel (Ni), % 8.0 to 10.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.070

Comparable Variants