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AISI 316Ti Stainless Steel vs. 238.0 Aluminum

AISI 316Ti stainless steel belongs to the iron alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, 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 316Ti stainless steel and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
76
Elongation at Break, % 41
1.5
Fatigue Strength, MPa 200
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
28
Tensile Strength: Ultimate (UTS), MPa 580
210
Tensile Strength: Yield (Proof), MPa 230
170

Thermal Properties

Latent Heat of Fusion, J/g 290
430
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1380
510
Specific Heat Capacity, J/kg-K 470
840
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
67

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.9
3.4
Embodied Carbon, kg CO2/kg material 4.0
7.4
Embodied Energy, MJ/kg 55
140
Embodied Water, L/kg 150
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
42
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.0
37
Thermal Shock Resistance, points 13
9.1

Alloy Composition

Aluminum (Al), % 0
81.9 to 84.9
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
9.5 to 10.5
Iron (Fe), % 61.3 to 72
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
3.6 to 4.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.7
0
Zinc (Zn), % 0
1.0 to 1.5