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AISI 317L Stainless Steel vs. EN AC-45100 Aluminum

AISI 317L stainless steel belongs to the iron alloys classification, while EN AC-45100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 AISI 317L stainless steel and the bottom bar is EN AC-45100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
97 to 130
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 44
1.0 to 2.8
Fatigue Strength, MPa 220
82 to 99
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
27
Tensile Strength: Ultimate (UTS), MPa 550
300 to 360
Tensile Strength: Yield (Proof), MPa 250
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1400
630
Melting Onset (Solidus), °C 1380
550
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 14
140
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
95

Otherwise Unclassified Properties

Base Metal Price, % relative 21
10
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 4.3
7.9
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 160
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
3.5 to 7.6
Resilience: Unit (Modulus of Resilience), kJ/m3 150
290 to 710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 19
30 to 35
Strength to Weight: Bending, points 19
35 to 39
Thermal Diffusivity, mm2/s 3.8
54
Thermal Shock Resistance, points 12
14 to 16

Alloy Composition

Aluminum (Al), % 0
88 to 92.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
2.6 to 3.6
Iron (Fe), % 58 to 68
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.15 to 0.45
Manganese (Mn), % 0 to 2.0
0 to 0.55
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
0 to 0.1
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15