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AISI 201LN Stainless Steel vs. 295.0 Aluminum

AISI 201LN stainless steel belongs to the iron alloys classification, while 295.0 aluminum belongs to the aluminum alloys. There are 31 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 AISI 201LN stainless steel and the bottom bar is 295.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
60 to 93
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 25 to 51
2.0 to 7.2
Fatigue Strength, MPa 340 to 540
44 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 530 to 680
180 to 230
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
230 to 280
Tensile Strength: Yield (Proof), MPa 350 to 770
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 880
170
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.6
7.9
Embodied Energy, MJ/kg 38
150
Embodied Water, L/kg 140
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
5.2 to 13
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
77 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 27 to 38
21 to 26
Strength to Weight: Bending, points 24 to 30
27 to 32
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 16 to 23
9.8 to 12

Alloy Composition

Aluminum (Al), % 0
91.4 to 95.3
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
4.0 to 5.0
Iron (Fe), % 67.9 to 73.5
0 to 1.0
Magnesium (Mg), % 0
0 to 0.030
Manganese (Mn), % 6.4 to 7.5
0 to 0.35
Nickel (Ni), % 4.0 to 5.0
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0.7 to 1.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15