• Titanium Alloys

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Titanium Alloys

At NeoNickel, we offer a range of Titanium alloys that provide high strength-to-weight ratio and outstanding resistance to corrosion in the harshest working environments.

With half the density of nickel alloys, stainless alloys and duplex / super duplex alloys, titanium offers a significant cost to weight ratio for key applications in markets which include : Aerospace, Oil & Gas, FPSO production vessels (floating production storage and offloading vessels), Power Generation, Desalination, Chemical Process, Bio-Medical, Motor Sport, Sports Equipment and many other markets where material performance is critical.

Technique Operation Grades Suitable thickness Speed Comment
Plasma Arc Welding Automatic Commercially pure titanium, titanium grade 2, titanium grade 5, titanium grade 7, 9 and 12 0.5 – 8 mm Fairly fast Suitable for cross-sectional and seam welding of pipes.
Good for repeatability.
TIG Welding (TIG stands for Tungsten Inert Gas ) Manual Commercially pure titanium, titanium grade 2, titanium grade 5, titanium grade 7, 9 and 12 Up to 100 mm Slow High flexibility for complex fabrication
MIG (MIG stands for Metal Inert Gas) Mutometic /Manual Titanium grade 2 and titanium grade 5 (Ti6Al4V) 0.5 – 10 mm Fast
LASER Welding Titanium grade 1, titanium grade 2, titanium grade 5, titanium grade 7, 9, 12 0.5 – 6 mm Very fast Expensive setup.
Good for repeatability.
Less distortion when lower heat input

 

Titanium alloys are also selected based on their high strength, corrosion resistance and high-temperature properties i.e. resistance to oxidation, creep, fatigue and stress-rupture failure.

There is no doubt that Titanium and its alloys play a major part in the Aerospace, Oil & Gas, Chemical Process, Power Generation, Desalination, Bio-Medical, Motorsport and Sporting Equipment industries.

Key properties of Titanium and its alloys are:

  • Low density (relatively light-weight)
  • Exceptional erosion and erosion-corrosion resistance
  • High fatigue strength in air and Chloride environments
  • High fracture toughness in air and Chloride environments
  • Low modulus of elasticity
  • Low thermal expansion coefficient
  • High melting point
  • Excellent cryogenic properties
  • Non-magnetic property
  • High intrinsic shock resistance
  • High ballistic resistance-to-density ratio
  • Nontoxic, non-allergenic and fully biocompatible
  • Very short radioactive half-life

Titanium alloy applications:

  • Motorsport-fasteners
  • Power generation – surface condensers, condenser tubing, plate heat exchangers, turbines, cryogenic vessels
  • Oil & gas – Shell and tube heat exchangers, plate heat exchangers, piping systems, valves and pumps, prop shafts, propellers, cryogenic vessels

RELATIVE PROPERTIES OF TITANIUM AS COMPARED TO OTHER ALLOYS

Properties Titanium Ni Alloys Aluminium Alloy Steel Stainless Steel
Density LOW HIGH VERY LOW HIGH HIGH
STRENGTH HIGH HIGH LOW HIGH HIGH
Strength/Weight ratio HIGH MEDIUM MEDIUM MEDIUM MEDIUM
Melting Point HIGH HIGH LOW MEDIUM MEDIUM
Corrosion Resistance (water) GOOD GOOD POOR POOR GOOD
Corrosion Resistance (gases) GOOD GOOD POOR MEDIUM MEDIUM
Fire Resistance GOOD GOOD POOR MEDIUM MEDIUM