Titanium Technical Data

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Commercially pure Titanium combines superior corrosion resistance with a high strength to weight ratio, making it a cost-effective solution to many design problems.

Chemical Analysis
(weight%)

N2 C Fe H O2 Others Ti
ASTM (Grade 2) 0.03 max 0.10 max 0.30 max 0.015 max 0.25 max 0.40 Bal.
TYPICAL 0.01 0.02 0.03 – 0.16 0.003 0.05 – 0.10 0.30 Bal.

Mechanical Properties

ASTM TYPICAL
Tensile (MPa) 345 min 390 – 540
Yield 0.2% offset (MPa) 275 – 450 290 min
Elongation % 20 min 22 min
titanium forged ring, fasteners, rods and other titanium products

Physical Properties

Melting Point – 1660 °C
Density – 4.51 g/cc
Thermal Conductivity – 17 W/M.K at 20°C
Electrical Resistivity – 482 nΩm at 20°C
Specific Heat – 528 J/Kg.K at 50°C
Coefficient of Thermal Expansion – 7.6 10-6 K -1 (20-100°C) | 8.9 10-6 K -1 (20-200°C)

See titanium products.

Corrosion Resistance

Titanium possesses excellent resistance to a wide range of corrosive environments, which can cause severe attack on other materials of construction. It is particularly resistant to oxidising media and the pitting, crevice corrosion and stress corrosion cracking mechanisms associated with solutions containing chloride ions.

Titanium has exceptional resistance to seawater, even to very high temperatures. For heat exchange and piping applications, this is further enhanced by excellent resistance to erosion and cavitation.

Welding

Titanium is not a difficult metal to weld, but strict precautions must be taken to guard against contamination. Fusion welding techniques must be aimed, therefore, at the exclusion of atmospheric contamination, by welding, argon, helium, or vacuum, following careful cleaning and edge preparation of the areas to be joined.

All heated surfaces, front and back, must be protected from exposure to atmospheric contaminants. MIG, TIG, plasma-arc, friction and electron beam processes are all suitable for titanium welding.

Titanium cannot be welded to other metals.

Specifications

Titanium and titanium alloys are most commonly produced to ASTM standards

  • ASTM B265 Strip, Sheet, and Plate
  • ASTM B337 Seamless and Welded Pipe
  • ASTM B338 Seamless and Welded Tube for Condensers and Heat Exchangers
  • ASTM B348 Bars and Billets
  • ASTM B363 Seamless and Welded Welding Fittings
  • ASTM B367 Castings
  • ASTM B381 Forgings

Stock Programme

Titanium International offers the most comprehensive range of titanium stock in Australia in the following forms:

Material Indicative Size Range
Tube 1/4″ – 2″ O.D.
Pipe 1/2″ – 2″ N.B.
Round 8.5mm – 100mm DIA
Flat/Square 1/4″ – 1″
Sheet 0.4mm – 3mm THICK
Plate 4mm – 20mm THICK
Wire 0.7mm – 8mm DIA
Fasteners 3/16″ – 3/8″ up to 3″ LONG
In addition to the above, Titanium International also stocks the following:

Other Products

Titanium International has also established channels of supply for a range of other high technology materials:

  • Heat Exchanger Tubing
  • Specialty Stainless Steels
  • Nickel-based Alloys
  • Copper-based Alloys