Automotive and Bicycle Shock Absorption Titanium Spring

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Various spec. Available.
Titanium has an image of being a rare, hard to get, difficult to work with material. Titanium is the forth most abundant metal on our planet. Titanium is most often mined as the ore rutile or ilmenite. Titanium is rather diffcult to fabricate because of its susceptibility to oxygen, nitrogen, and hydrogen impurities which cause the titanium to become more brittle.

Elevated temperature processing must be used under special conditions in order to avoid diffusion of these gasses into the titanium. Commercially produced titanium products are made in the following mill wrought forms, plate, tubing, sheet, wire, extrusions, and forgings. Titanium can also be cast, which must be done in a vacuum furnace because of titanium is reactive nature.
Nearly all titanium metal used for production is an alloy. Like other pure metals, Pure titanium reguires the addition that performance applications demand.

Titanium spring Steel spring
Weight 2.33 lbs. (w/spacer) 4.27 lbs
Free length 10.0 in 10.0 in
Travel 6.4 in 5.2 in

The result is a 1.94 lb. Weight savings. The lower weight improve suspension dynamics and response.

In racing, where performance is everything, reducing weight is always a goal. The properties of titanium allow the design of a lighter spring with added travel and more resistance to set. This reduced mass and inertia increases the natural frequency of the spring.

A titanium spring is more responsive then a steel spring and helps the suspension keep the tires on the ground for better traction and handling. Titanium springs have less mass and thus less inertia. Titanium springs are often 30 to 50% lighter than steel springs.

The substantial weight savings also improves the suspension performance by reducing the Mass and inertia generated by displacements of the suspension system.

A lighter suspension system will have improved response and performance.

Titanium has a lower torsional modulus than steel. It is in effect "more springy". Because of this titanium springs are designed with slighty larger wire but fewer coils. The result is a spring with more available travel than a steel spring of the same free length and rate.