MakeItFrom.com
Menu (ESC)

EN AC-47000 Aluminum vs. AISI 431 Stainless Steel

EN AC-47000 aluminum belongs to the aluminum alloys classification, while AISI 431 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-47000 aluminum and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
250
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.7
15 to 17
Fatigue Strength, MPa 68
430 to 610
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
890 to 1380
Tensile Strength: Yield (Proof), MPa 97
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 570
280
Maximum Temperature: Mechanical, °C 170
850
Melting Completion (Liquidus), °C 590
1510
Melting Onset (Solidus), °C 570
1450
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 7.7
2.2
Embodied Energy, MJ/kg 140
31
Embodied Water, L/kg 1040
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 65
1270 to 2770
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 19
32 to 50
Strength to Weight: Bending, points 27
27 to 36
Thermal Diffusivity, mm2/s 55
7.0
Thermal Shock Resistance, points 8.3
28 to 43

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.1
15 to 17
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 0 to 0.8
78.2 to 83.8
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0 to 1.0
Nickel (Ni), % 0 to 0.3
1.3 to 2.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0