Customization: | Available |
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Application: | Industrial, Medical |
Standard: | JIS, DIN, ASTM |
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Superelastic shape memory Ni Ti alloy nitinol fishing gear wire/line
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 two primary categories of Nitinol. The first, known as "SuperElastic", is characterized by extraordinary recoverable strains and kink 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. we makes shape memory alloys, which are primarily useful for actuators, used in many different mechanical devices.
Nitinol Materials
? Our nitinol material products include nitinol wires, nitinol tubing, and shapeset nitinol components
?Chemical composition: Reference ASTM F2063-2012 or GB 24627-2009;
? Af temperature range: -40C~85C
Nitinol shape memory wire
· Diameter Range: OD0.08mm~OD7.00mm
· Surface State Options:
? Oxide surface(including Black oxide, Blue oxide, Amber oxide)
? Etched surface
? Polished surface
? Ground surface
· Tolerances:
4.000~2.000mm ±0.020mm
2.000~1.000mm ±0.015mm
1.000~0.350mm ±0.010mm
0.350~0.260mm ±0.007mm
0.260~0.150mm ±0.005mm
0.150~0.080mm ± 0.004mm
Standard: ASTM F2063-05 Q/XB1516 Customer specified or Industry Standard
Nitinol wire Specifications
Alloy |
Chemical composition |
Af (Fully annealed) |
Min. elongation to failure [%] |
Max. Residual elongation after 6% strain [%] |
Main Applications |
Specifications |
|
Superelastic Ni-Ti alloy |
TiNi-SS |
Ti-50.8at% |
-5°C ± 5°C. |
10 |
0.1 |
Eyeglass Frames, Cellular Phone Antennae, Bra Underwire |
Q/XB1516.2 Q/XB1516.2 |
TN3 TNC |
TiNiVAl TiNiCr |
-40°C ~50°C |
10 |
0.1 |
|||
Body temperature Ni-Ti alloy |
TiNi-YY |
Ti-50.7at%Ni |
Functional Af=33 ± 3 |
15 |
0.1 |
Implantable devices, Bone staples Vascular Stents |
ASTM 2063 |
Ti-Ni-01 |
55.6~55.8 wt%Ni |
20 - 40 |
15 |
0.1 |
Guide wires, Stents Orthodontic Arches |
Q/XB1516.1 |
|
High temperature Ni-Ti alloy |
Ti-Ni-02 |
54.8~55.5wt%Ni |
45 - 95 |
10 |
0.1 |
Implantable active devices, Surgical tools, Thermostats Coffeepots |
Q/XB1516.1 |
TiNiCu |
TiNiCu |
As-Ms ≤ 5 |
10 |
0.1 |
Nitinol wire alloy code:
Regular binary NiTi alloy code, main composition, and typical active Af temperature (per ASTM F2063-05 or GB 24627-2009)
*The real active Af temperature may varies with actual composition, thermo-mechanical history of the products.
Alloy code |
A |
B |
S |
C |
D |
E |
Main composition mass%Ni |
55.07 |
55.66 |
55.76 |
55.86 |
55.96 |
56.25 |
*Active Af after heat treatment, °C |
75+/-5 |
28+/-5 |
23+/-5 |
11+/-5 |
5+/-5 |
-15+/-5 |
Regular ternary NiTi alloy code, main composition, and typical active Af temperature
Alloy code |
F |
G |
I |
J |
H |
Main composition mass%Ni |
44.0Ti |
44.0Ti |
50.0Ti |
50.0Ti |
47.0Ni |
*Active Af after heat treatment, °C |
Similar to binary Nitinol D with higher strength |
Similar to ternary NiTi0.2Cr with higher strength |
42+/-5 |
-32+/-6 |
142+/-10 |
*The real active Af temperature may vary with actual composition, thermo-mechanical history of the product.
We manufactures different medical grades (binary NiTi code D, C, S, E and ternary NiTiV code J) of Nitinol wire products available in either as straightened superelastic (SE) wire or the cold worked (CW) condition wire ready forheat treatment.
Heat Treatment Status:
Medical grade Nitinol wire may be purchased in the super-elastic condition (SE) or the cold worked (CW), and after the correct supper-elastica heater treatment will accommodate strain up to 8% without permanent kinking at body temprature.
Typical transformation temperature
The transformation temperatures and mechanical properties for typical grades of Nitinol are presented in the table below:
Nitinol code |
Ni content |
As straightened super-elastic (SE) |
Cold worked (CW) |
Typical mdeical applications |
|||||
sb |
Δ |
sload MPa |
sunload |
Active Af |
Ingot As |
sb |
|||
Nitinol-D regular |
55.96 |
> 1240 |
> 10 |
> 482 |
>138 |
+10 ~ +18 |
-30 ~ -10 |
> 1378 |
Guide wires, stents, shapeset parts, stone retrieval baskets, orthodontic files, etc |
Nitinol-D High fatiqute |
55.96 |
> 1240 |
> 10 |
> 448 |
>103 |
+14 ~ +22 |
-10 ~ +10 |
> 1378 |
For device require high cycling performance at 37°C |
Nitinol-S regular |
55.76 |
> 1000 |
> 10 |
> 400 |
Depand on Af |
+15 ~ +28 |
-10 ~ +10 |
> 1150 |
For device with high fatigue file such as implants, stents & Shapeset parts |
NiTiCr |
55.8Ni-0.2~0.3Cr |
> 1447 |
> 10 |
> 551 |
> 241 |
0 ~ +18 |
- 45 ~ - 15 |
> 1722 |
Non-medical applications for higher upper plateau stress at ambient temperatures, such as antenna, eyeglass frame etc. |
Remark |
|
All Mechanical Testing Conducted at 22°C +/- 2°C; Permanent Set < 0.5% after strained to 8%; Elongation at Break > 10% |
Elongation at break > 4% |
|
Nitinol wires Applications:
There are four commonly used types of applications for nitinol.
Other applications