MakeItFrom.com
Menu (ESC)

EN AC-46100 Aluminum vs. S20431 Stainless Steel

EN AC-46100 aluminum belongs to the aluminum alloys classification, while S20431 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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-46100 aluminum and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
210
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.0
46
Fatigue Strength, MPa 110
320
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 270
710
Tensile Strength: Yield (Proof), MPa 160
350

Thermal Properties

Latent Heat of Fusion, J/g 550
280
Maximum Temperature: Mechanical, °C 180
890
Melting Completion (Liquidus), °C 600
1400
Melting Onset (Solidus), °C 540
1360
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.6
2.5
Embodied Energy, MJ/kg 140
36
Embodied Water, L/kg 1030
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
270
Resilience: Unit (Modulus of Resilience), kJ/m3 170
310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 34
23
Thermal Diffusivity, mm2/s 44
4.0
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 80.4 to 88.5
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0 to 0.15
17 to 18
Copper (Cu), % 1.5 to 2.5
1.5 to 3.5
Iron (Fe), % 0 to 1.1
66.1 to 74.4
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0 to 0.3
0
Manganese (Mn), % 0 to 0.55
5.0 to 7.0
Nickel (Ni), % 0 to 0.45
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 10 to 12
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.7
0
Residuals, % 0 to 0.25
0