Titanium is the ninth-most abundant element in Earth’s crust; anatase, brookite, ilmenite, perovskite, rutile, and titanite (sphene) are common titanium-containing minerals; titanium occurs as oxides, sulfides and alkoxides; and naturally occurring titanium is composed of 5 stable isotopes. These are some of the facts about titanium element, but this element is greatly known for its exceptional properties that no other metallic elements have.
The most valuable titanium properties are high-strength, low-weight material with high corrosion resistance that make it superior compared to other metals and also best for tube and pipe applications.
Combination of exceptional titanium properties
When considering appropriateness for titanium tubing, the combination of properties of titanium are taken into consideration. Titanium is a unique combination of properties: a high strength-to-density ratio, low modulus of elasticity, and stable and steadfast oxide film that imparts remarkable corrosion and erosion resistance to titanium. Besides, itsfabricability, formability (to bend, cold-formed, and drawn readily), and weldability (similar to those of steel and nickel alloys) are also excellent that make this metal useful in many shop and field operations. Most titanium alloys used in industrial applications do not need stress relief annealing after cold forming. So, everything is exceptional in this wonder metal.
Importance of titanium grading for tubing
Why titanium tubing is considered most efficient in many applications? Apart from considering many exceptional properties of this metal, as discussed in previous paragraph, titanium’s availability in various grades is also an important factor that makes its suitable for tubing applications. the American Society of Mechanical Engineers (ASME) Pressure Vessel and Boiler Code has approved titanium grades 1, 2, 3, 7, 9, 11, 12, 16, 17, 26 (TIRU-26TM), and 27 (TIRU-27TM); ASTM B-861 specifies seamless titanium and titanium-alloy pipe; and ASTM B-862 specifies welded titanium and titanium-alloy pipe. Grade 2 titanium is suitable for most applications. So, when titanium and other materials are analyzed, titanium emerges as the best for tubing.