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EN 1.4034 Stainless Steel vs. EN AC-47000 Aluminum

EN 1.4034 stainless steel belongs to the iron alloys classification, while EN AC-47000 aluminum belongs to the aluminum alloys. There are 29 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 1.4034 stainless steel and the bottom bar is EN AC-47000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 11 to 14
1.7
Fatigue Strength, MPa 230 to 400
68
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 690 to 900
180
Tensile Strength: Yield (Proof), MPa 390 to 730
97

Thermal Properties

Latent Heat of Fusion, J/g 270
570
Maximum Temperature: Mechanical, °C 770
170
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 30
130
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
33
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 2.0
7.7
Embodied Energy, MJ/kg 27
140
Embodied Water, L/kg 100
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 94
2.5
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1370
65
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
54
Strength to Weight: Axial, points 25 to 32
19
Strength to Weight: Bending, points 22 to 27
27
Thermal Diffusivity, mm2/s 8.1
55
Thermal Shock Resistance, points 24 to 32
8.3

Alloy Composition

Aluminum (Al), % 0
82.1 to 89.5
Carbon (C), % 0.43 to 0.5
0
Chromium (Cr), % 12.5 to 14.5
0 to 0.1
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 83 to 87.1
0 to 0.8
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0
0 to 0.35
Manganese (Mn), % 0 to 1.0
0.050 to 0.55
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
10.5 to 13.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.55
Residuals, % 0
0 to 0.25