Products Description
Nitinol rod is a processed product of nickel titanium alloy. Nitinol is known for its thermomechanical properties of superelasticity and shape memory effect. Shape memory refers to the ability of Nitinol to deform at a certain temperature and then return to its original, unformed shape when heated above its transformation temperature.
Superelasticity occurs in a narrow temperature range just above its transformation temperature; in this case, the unformed shape can be restored without heating, and the material exhibits enormous elasticity, about 10-30 times that of ordinary metals times.
Products Description
|
Product Name |
Nitinol Rod |
|
Size |
>0.2" Diameter |
|
Forms |
Straight rods |
|
Other Available Geometries |
Bar, or customized |
Mechanical Properties for Superelastic Grades
|
Cold Worked |
Superelastic |
|||||||
|
Grade |
Ingot As (℃) |
Min. Uts (psi) |
Elongation (%) |
Min. Uts (psi) |
Elongation (%) |
Loading Plateau (ksi) |
Unloading Plateau (ksi) |
Active Af (℃) |
|
Nitinol #1 |
-35 to -10 |
220,000 |
>4 |
180,000 |
>10 |
>70,000 |
>20,000 |
+10 to +18 |
|
Nitinol #2 |
-45 to -15 |
250,000 |
>4 |
210,000 |
>10 |
>80,000 |
>35,000 |
0 to +18 |
|
Nitinol #4 |
-10 to +10 |
220,000 |
>4 |
180,000 |
>10 |
>65,000 |
>7,000 |
+14 to +22 |
|
Nitinol #9 |
≥ +35 |
220,000 |
>4 |
160,000 |
>10 |
>75,000 |
>25,000 |
≤0 |
Mechanical Properties for Shape-Memory Grades
|
Cold Worked |
Superelastic |
|||||||
|
Grade |
Ingot As (℃) |
Min. Uts (psi) |
Elongation (%) |
Min. Uts (psi) |
Elongation (%) |
Loading Plateau (ksi) |
Unloading Plateau (ksi) |
Active Af (℃) |
|
Nitinol #5 |
≥ +85 |
220,000 |
>3 |
160,000 |
>10 |
N/A |
N/A |
≥ +85 |
|
Nitinol #6 |
+35 to +85 |
220,000 |
>3 |
160,000 |
>10 |
N/A |
N/A |
+40 to +80 |
|
Nitinol #8 |
+10 to +35 |
220,000 |
>3 |
160,000 |
>10 |
N/A |
N/A |
+22 to +40 |
Products surface treament
Lightly oxidized (LO) gold to brown - diamond brushed finish
Dark Oxide (DK) blue to black - diamond brushed finish
Black Oxide (BLK) Shiny Black - Diamond Brushed Finish
Etching (E) chemically removes oxide layers - maintaining a smooth surface
Pickling (P) chemically removes the oxide layer as well as small amounts of base metal - the surface will have a rough texture Etch and Mechanical Polishing (EMP) chemically removes the oxide layer and then mechanically polishes - the surface will have a stainless steel despite >40x magnification Micro scratches but still showing the appearance of steel.
Products features
highlighting advantages of Nitinol rod
Values listed apply for complete martensite to austenite transformation.
Hysteresis can be significantly reduced through partial transformation or ternary alloys.
Similar to 300 series stainless steel or titanium
Highly non-linear with temperature
Products application
application
For mobile phone antennas
Used in children's toys
Used for experimental materials
For Glasses
For archwire instruments
how does it work?
The crystal structure of Nitinol shape memory alloys undergoes a phase transition when cooled from a stronger, higher temperature (austenite) to a weaker, lower temperature (martensite). This inherent phase transformation is the basis for the unique properties of these alloys, particularly shape memory and superelasticity.
XOT Metals manufactures Nitinol rods from various grades of Nitinol alloys, commonly used in medical applications as well as a variety of other applications. Medical-grade Nitinol materials contain nearly equal atomic weight percentages of nickel and titanium; the nickel content for surgical implants is specified at 54.5-57 wt% per ASTM F2063. Nitinol with different compositions and phase transition temperatures can be used in other applications.
ehisen
Ehisen
The company was founded in 2004 as a high-tech enterprise with a focus on producing sophisticated metal materials, including melting, profiling, machining, and research and development for precious metal anodes.Our company specializes in creative manufacturing and has 50 employees spread throughout 15 mu of space.
The company has rolling, heat-treating, stamping, and alloy-making equipment.processing facilities, labs for precious metal coating, electroplating, production lines for titanium anodes, and associated testing apparatus.Over the years, it has developed into a complete company that handles sales, production, and R&D.
FAQ
do you have any question?
Can Nitinol stop a bullet?
A 1mm thick sheet of nitinol safely stopped a 7.62mm bullet. Temperature Control: Nitinol is thermally active. That means that the nitinol actuator can double as a sensor, opening valves when temperatures reach desirable (or unsafe) levels.
What are the problems with Nitinol?
Nitinol materials in either the cold worked or heat-treated state can be easily sheared or stamped (see Figure 3 for examples), but they are difficult to form to an accurate geometry, whether by forming wire shapes or die pressing. The major problem, spring-back, is significant at ambient temperature.
How long does nitinol last?
How long will nitinol actuators last? All of our devices are designed for more than 100,000 cycles. When used properly, they will provide millions of cycles of operation.
Is nitinol safe in human body?
Nitinol is also used for these medical devices because it is bio-compatible, meaning it is compatible with the human body and will, therefore, not be harmful to human tissue. Other materials that are not bio-compatible can result in issues such as blood clotting when used for similar applications.
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