Nickel Titanium (also known as Nitinol or NiTi) is in the unique class of shape memory alloys. A thermoelastic martensitic
phase transformation in the material is responsible for its extraordinary properties.
Nitinol alloys are typically made of 55%-56% Nickel and 44%-45% Titanium. Small changes in composition can significantly
impact the properties of the material. There are the primary categories of Nitinol.
The first, known as "SuperElastic", is characterized by extraordinary recoverable strains and resistance.
The second category, "Shape Memory" alloys, is valued for the Nitinol's capacity to recover a pre-set shape
when heated above its transformation temprature. The first category is often used for orthodontics (braces, wires, etc) and eyeglasses. SZNK makes shape memory alloys, which are primarily useful for actuators, used in many different mechanical devices.
ASTM F2063-05 Q/XB1516 Customer specified or Industry Standard
Name
Grade
Transformation Temperature AF
Form
Standard
Shape Memory Nitinol Alloy
Ti-Ni-01
20 °C~ 40 °C
Wire,
bar, plate
Customer specified or
Industry standard
Ti-Ni-02
45 °C~ 90 °C
Superelastic Nitinol Alloy
TiNi-SS
-5 °C~ 5 °C
Low Temperature Superelastic Nitinol Alloy
TN3
-5°C~ -15°C
-20°C~ -30°C
TNC
Medical Nitinol Alloy
TiNi-SS
33 ± 3 °C
ASTM F2063
Narrow Hysteresis Nitinol Alloy
Ti-Ni-Cu
As-Ms ≤ 5 °C
Wire, bar
Wide Hysteresis Nitinol Alloy
Ti-Ni-Fe
As-Ms ≤ 150 °C
Applications
Shape-memory effect
Super-elasticity effect
Pipe joint(radioactive waste transport pipe)
Wire (brassiere, corset, drool bib for baby, frame of hat)
Dental root (inserted into the bone and fixed)
Frame of glasses
Electrical connector(Utilization of temperature up of inferior contact point)
Teeth-straightening(crownwork, arch wire)
Automatic closing mechanism of window
Catheter lead wire for introducing X-ray contrast medium (follow flexibly in vessel)
Air conditioner sensor flap
Rehabilitation apparatus for forming
Spring cellar
Antifreezing valve (turn the faucet on lowering temperature)
Fan clutch (stop operation at low temperature)
Temperature alarm (alternative bimetal)
Medical implant (expanding vessel)
Chemical Composition and shape-recovery temperature
Item
Ni
Ti
Co
Cu
Shape-recovery temperature
Ni-Ti alloy
54~56
Residual Bal
-
-
20~100℃
Ni-Ti-Co alloy
53~55
Residual Bal
1~3
-
-30~30℃
Ni-Ti-Cu alloy
47~50
Residual Bal
-
5~9
40~70℃
Mechanical properties
Item
Ni-Ti alloy
Ni-Ti-Co alloy
Ni-Ti-Cu alloy
Martensitic phase
Tensile strength MPa (kgf/mm2)
1175~1370 (120~140)
1370~1570 (140~160)
1175~1765 (120~180)
Yield strength MPa (kgf/mm2)
~196 (~20)
~294 (~30)
68~98 (7~10)
Elongation %
~50
~50
~20
Horizontal modulus of elasticity MPa (kgf/mm2)
7845~9800 (800~1000)
9800~13730 (1000~1400)
0~4900 (0~500)
Martensitic phase
Tensile strength MPa (kgf/mm2)
1075~1175 (110~120)
1275~1370 (130~140)
1175~1765 (120~180)
Yield strength MPa (kgf/mm2)
390~785 (40~80)
490~980 (50~100)
390~785 (40~80)
Elongation %
~20
~20
~20
Horizontal modulus of elasticity MPa (kgf/mm2)
17650~21575 (1800~2200)
25500~28440 (2600~2900)
19615~27460 (2000~2800
The Relevant of Products
Our Company Display
Our Company Equipments
The Applications of Shape Memory Alloys
Quality Assurance System and Related Certificate
Our Customers Visit
Customers from HK &Korea We become their long-term relationship supplier for nitinol flat wire and springs! Thanks a lot the support and trust from all our customers! We will keep improve to make you satisfied forever!
Our Advantage
Quality Assurance
1] .According to globally recognized standard,for example ASTMF.ASTM ASTMB provide third-part inspection reports,ISO Quality Management System .
2]. Visual inspection to check surface quality ,ensuring without flaw.black dot and other defects.
3]. We also take Mechanics Performance Testing, Particle size test microscope ,Powder density tester, pressure testing machine,scanning electron microscope
ultrasonic flaw detector by our company before shipping .
4].Chemical composition making sure all chemical components can satisfy customers demands.
5].Mechanical property testing making sure all Nitinol products have satisfying feature before delivery.
The Package of Products
FAQ
Our Gold Service
1, About our Quotation ways: FOB , CIF and others ways will according the Customers' request;
2, About our Payment ways: all of kinds Payment we all accept from our Customers;
3, About our Transportation:Sea Freight, Air Freight and others Express Delivery ways to our Customers;
4, Pay more attention to every details about Products Quality for Customers;
5, If has any bad feedback from any of our Customers, we all will be responsible for him/her, if it is the reasonable, every customers are the same important in our heart. and we will try all of our best to serve them in order to make their jobs be more easy and relax than before.
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