Nitinol

Johnson Matthey Australia supplies Australian manufacturers and engineers with the revolutionary ‘shape memory’ alloy nitinol. A composition of nickel and titanium (NiTi), nitinol is renowned for its unique characteristics of super-elasticity, martensite deformability and thermal memory effect. These incredible properties enable the use of nitinol in a great variety of applications in medical implants and instruments and other applications.

Johnson Matthey Australia supplies Australian manufacturers and engineers with the revolutionary ‘shape memory’ alloy nitinol. A composition of nickel and titanium (NiTi), nitinol is renowned for its unique characteristics of super-elasticity, martensite deformability and thermal memory effect. These incredible properties enable the use of nitinol in a great variety of applications in medical implants and instruments and other applications.

Alloys can be modified to meet customer-specific compositions with austenite transformation temperatures ranging from –25ºC to 120ºC. Supply of nitinol alloys is augmented by certification of tensile properties, transformation temperatures, chemical composition and customer-specific requirements.

Available forms

Tubing:

  • outer diameter ranging 0.125mm to 6.4mm
  • wall thicknesses to 0.05mm

Sheet:

  • widths of up to 95mm rolled to as low as 18 micron

Wire:

  • diameters from 0.025mm to 2mm
  • multi-strand and alternate material compositions available

Ribbon and Strip:

  • sizes from 0.025mm x 0.05mm to 0.75mm x 10mm

Surfaces:

  • amber/brown oxide (wire & ribbon)
  • shiny black oxide (wire only)
  • natural oxide
  • pickled/etched (including tubing ID if required)
  • mechanically polished (wire only)
  • centerless ground (wire and tubing OD only)
  • ultrafine polished (wire only)
  • customer specific requirements

Thermomechanical Conditions:

  • cold worked, straight/flat strain annealed, shape set annealed or specific requirements