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AISI 347LN Stainless Steel vs. R56406 Titanium

AISI 347LN stainless steel belongs to the iron alloys classification, while R56406 titanium belongs to the titanium alloys. There are 30 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 347LN stainless steel and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
9.1
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.28
0.32
Reduction in Area, % 56
16
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 590
980
Tensile Strength: Yield (Proof), MPa 230
850

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 940
340
Melting Completion (Liquidus), °C 1430
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.5
38
Embodied Energy, MJ/kg 49
610
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
85
Resilience: Unit (Modulus of Resilience), kJ/m3 130
3420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21
61
Strength to Weight: Bending, points 20
49
Thermal Diffusivity, mm2/s 4.1
2.8
Thermal Shock Resistance, points 13
69

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0.0050 to 0.020
0 to 0.1
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 64.3 to 73.7
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0.060 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5