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AISI 316LN Stainless Steel vs. Grade 23 Titanium

AISI 316LN stainless steel belongs to the iron alloys classification, while grade 23 titanium belongs to the titanium alloys. There are 31 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 AISI 316LN stainless steel and the bottom bar is grade 23 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 42
6.7 to 11
Fatigue Strength, MPa 200
470 to 500
Poisson's Ratio 0.28
0.32
Reduction in Area, % 51
30
Shear Modulus, GPa 82
40
Shear Strength, MPa 410
540 to 570
Tensile Strength: Ultimate (UTS), MPa 590
930 to 940
Tensile Strength: Yield (Proof), MPa 230
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 940
340
Melting Completion (Liquidus), °C 1450
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 17
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
36
Density, g/cm3 7.9
4.4
Embodied Carbon, kg CO2/kg material 3.8
38
Embodied Energy, MJ/kg 53
610
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
61 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 130
3430 to 3560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21
58 to 59
Strength to Weight: Bending, points 20
48
Thermal Diffusivity, mm2/s 4.1
2.9
Thermal Shock Resistance, points 13
67 to 68

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 62 to 71.9
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), % 0.1 to 0.16
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4