Advanced Metals
Nitinol (Ni-Ti)
Nitinol is a kind of metal alloy of Nickel and titanium, which is comprised of roughly equal atomic weight percentage of nickel and titanium. Nitinol has two outstanding properties: superelastic and shape memory.
Nitinol are formed by blending the alloy and then induction melting in an inert-atmosphere vacuum chamber. Further processing is done to form wire, ribbon, sheet or laser machined components
Clients specify their desired operating temperature, and how the material should behave, and then by fine-tuning the wire’s chemical composition and thermal processing, Nitinol could be achieved with the flexibility and kink-resistance central to medical device and other applications.
Chemical composition of Nitinol (%, max.)
Grade
UNS
O
C
H
Fe
Co
Cu
Cr
Nb
Ni
Nitinol
N01555
0.05
0.07
0.005
0.05
0.05
0.01
0.01
0.025
54.5-57.0
Mechanical properties of Nitinol
Grade
Tensile strength
Yield strength
Elongation in 4D
Nitinol
551
/
5-10
(MPa, min.)
(MPa, min.)
(%)
Available forms
● Wire
● Strip and foil
● Plate and sheet
● Rod
● Tube
● Custom-made
Specification
ASTM F2063
Applications
Nitinol alloy is favored by the consumers for its superelasticity, shape memory, light weight, corrosion resistance and biocompatibility. Typical applications of Nitinol include:
Eyeglass Frames, Cell Phone Antennas, Medical, Marine, Recreational Equipment, Actuators, Super Elastic Shape Memory, Aircraft Engines, Jewelry, Stents, Actuators, Attenuators, Cellular Phone Antennas, Fishing Lures, Medical Implants.
