Dr. Dmitri Kopeliovich

Commercially Pure and Low Alloyed Titanium alloys consist of grains of α-phase and dispersed spheroid particles of β-phase. Small amounts of iron (Fe), present in the alloys, stabilize β-phase.

Commercially Pure and Low Alloyed Titanium alloys have relatively low mechanical strength, high ductility and formability and good corrosion resistance.

Strength and hardness of titanium is determined by the Oxygen (O) content (solution strengthening).

Increase of oxygen concentration from 0.18% to 0.40% results in increase of tensile strength of the metal from 48000 psi (331 MPa) to 96000 psi (662 MPa) and reduction of elongation from 30% to 20%.

In order to improve corrosion resistance of commercially pure titanium it is alloyed with small amounts of palladium (Pd) or nickel (Ni) and molybdenum (Mo).

Commercially Pure and Low Alloyed Titanium alloys are used for manufacturing equipment for chemical processing, dimensional stable anodes, marine parts, desalination equipment, airframes, plate-type heat exchangers, condenser and evaporator tubing, aircraft engine parts, surgical implants, gas compressors.

(Materials Data)

• Commercially pure titanium, Grade 1
• Commercially pure titanium, Grade 4
• Low alloyed titanium alloy, Grade 7
• Low alloyed titanium alloy, Grade 12

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• Classification of titanium alloys
• Titanium alpha and near-alpha alloys
• Titanium alpha-beta alloys
• Titanium beta alloys

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