bra nickel and titanium alloy underwires black nitinol wire

bra nickel and titanium alloy underwires black nitinol wire   Description:   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 t   wo 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.     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~75C       Nitinol Wire   Diameter Range: OD0.05mm~OD8.00mm   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      

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

    Application   Nitinol wires Applications:   There are four commonly used types of applications for nitinol. Free Recovery: nitinol is deformed at a low temperature, and heated to recover its original shape. Constrained Recovery: The same, except that recovery is rigidly prevented, and thus a stress is generated. Work Production: Here the alloy is allowed to recover, but to do so it must act against a force (thus doing work). Superelasticity: As discussed above, here the nitinol acts as a super spring.  Other applications Nitinol is also popular in extremely resilient glasses frames. It is also used in some mechanical watch springs. It can be used as a temperature control system; as it changes shape, it can activate a switch or a variable resistor to control the temperature. It is used in cell-phone technology as a retractable antenna, or microphone boom, due to its highly flexible and mechanical memory nature.                                                             It is used in some novelty products, such as self-bending spoons which can be used by amateur and stage magicians to demonstrate " psychic" powers or as a practical joke, as the spoon will bend itself when used to stir tea, coffe, or any other warm liquid.                                                                                                It can also be used as wires which are used to locate and mark breast tumours so that following surgery can be more exact. Due to the fact it can change shapes it is also used as a golf club insert. Nickel titanium can be used to make the underwires for underwire bras.

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