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EN AC-42200 Aluminum vs. EN 1.4376 Stainless Steel

EN AC-42200 aluminum belongs to the aluminum alloys classification, while EN 1.4376 stainless steel belongs to the iron 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 AC-42200 aluminum and the bottom bar is EN 1.4376 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89 to 100
230
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.0 to 6.7
45
Fatigue Strength, MPa 86 to 90
420
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 320
750
Tensile Strength: Yield (Proof), MPa 240 to 260
450

Thermal Properties

Latent Heat of Fusion, J/g 500
290
Maximum Temperature: Mechanical, °C 170
930
Melting Completion (Liquidus), °C 610
1410
Melting Onset (Solidus), °C 600
1370
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 150
15
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.0 to 20
290
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 490
520
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
25
Strength to Weight: Axial, points 34 to 35
27
Strength to Weight: Bending, points 40 to 41
24
Thermal Diffusivity, mm2/s 66
4.0
Thermal Shock Resistance, points 15
17

Alloy Composition

Aluminum (Al), % 91 to 93.1
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
17 to 20.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.19
65.5 to 76
Magnesium (Mg), % 0.45 to 0.7
0
Manganese (Mn), % 0 to 0.1
5.0 to 8.0
Nickel (Ni), % 0
2.0 to 4.5
Nitrogen (N), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 6.5 to 7.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0