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AISI 201L Stainless Steel vs. Grade 2 Titanium

AISI 201L stainless steel belongs to the iron alloys classification, while grade 2 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 201L stainless steel and the bottom bar is grade 2 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 320
150
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 22 to 46
23
Fatigue Strength, MPa 270 to 530
250
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
38
Shear Strength, MPa 520 to 660
270
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
420
Tensile Strength: Yield (Proof), MPa 290 to 790
360

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 880
320
Melting Completion (Liquidus), °C 1410
1660
Melting Onset (Solidus), °C 1370
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 17
9.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.6
31
Embodied Energy, MJ/kg 38
510
Embodied Water, L/kg 140
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
92
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
600
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 27 to 37
26
Strength to Weight: Bending, points 24 to 30
28
Thermal Diffusivity, mm2/s 4.0
8.9
Thermal Shock Resistance, points 16 to 23
32

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 67.9 to 75
0 to 0.3
Manganese (Mn), % 5.5 to 7.5
0
Nickel (Ni), % 3.5 to 5.5
0
Nitrogen (N), % 0 to 0.25
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.9 to 100
Residuals, % 0
0 to 0.4