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AISI 316LN Stainless Steel vs. Grade 3 Titanium

AISI 316LN stainless steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 32 material properties with values for both materials. Properties with values for just one material (5, 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 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 42
21
Fatigue Strength, MPa 200
300
Poisson's Ratio 0.28
0.32
Reduction in Area, % 51
34
Shear Modulus, GPa 82
39
Shear Strength, MPa 410
320
Tensile Strength: Ultimate (UTS), MPa 590
510
Tensile Strength: Yield (Proof), MPa 230
440

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 940
320
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 17
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
37
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.8
31
Embodied Energy, MJ/kg 53
510
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
100
Resilience: Unit (Modulus of Resilience), kJ/m3 130
910
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21
32
Strength to Weight: Bending, points 20
32
Thermal Diffusivity, mm2/s 4.1
8.6
Thermal Shock Resistance, points 13
37

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), % 62 to 71.9
0 to 0.3
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 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4