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Grade 27 Titanium vs. AISI 316L Stainless Steel

Grade 27 titanium belongs to the titanium alloys classification, while AISI 316L stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is AISI 316L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 27
9.0 to 50
Fatigue Strength, MPa 170
170 to 450
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
78
Shear Strength, MPa 180
370 to 690
Tensile Strength: Ultimate (UTS), MPa 270
530 to 1160
Tensile Strength: Yield (Proof), MPa 230
190 to 870

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
870
Melting Completion (Liquidus), °C 1660
1400
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
19
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
3.9
Embodied Energy, MJ/kg 530
53
Embodied Water, L/kg 320
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
77 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 240
93 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
19 to 41
Strength to Weight: Bending, points 21
18 to 31
Thermal Diffusivity, mm2/s 8.8
4.1
Thermal Shock Resistance, points 21
12 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
62 to 72
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0 to 0.030
0 to 0.1
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.045
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0 to 0.4
0