Nitinol Rod

We are a leading direct nitinol manufacturer and nitinol supplier in China, we specialize in high-quality nickel titanium alloy bar with below advantage:

✔ Nitinol Bar Stock – Long term stock in various diameters
✔ Custom Alloy Formulations – Including NiTiFe, NiTiCu, NiTiCo, NiTiCuCr, and more
✔ Tailored Dimensions – Customized requested nitinol rod diameters to meet your specifications
✔ Cost-Effective Pricing – Competitive nickel titanium alloy prices in market

We combine advanced technology and rich experiences for super elastic and shape memory function to serve different areas.

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Datasheet
Mechanical Properties
Tolerance

Product Name	Nitinol rod, Nitinol bar
Feature	Shape Memory Alloy,Superelastic, High Strength
Alloys	NiTiCu ,NiTiFe, ,NITiSS,NiTi
Expansion rate	more than 20%
Surface Treatment	Polished, Grinded ,Pickling
Condition	As Cold-Worked, Straight Strain Annealed and Shape Set Annealed.
Application	Dental braces, Stent, Fishing wire, Springs, Eyeglass frames, etc.

Dimension	UTS	Elongation	Upper Plateau Stress	Active Af
mm	σb MPa (min.)	δ % (min)	σload MPa (min.)	℃
≥ 6.0	850	15	440	– 20 ~ 100

Nominal Diameter in mm		Permissible Variation from Nominal in mm
6.00 ~ 10.0		± 0.05
10.0 ~ 30.0		± 0.10
≥ 30.0		± 0.30

Production Processing

High Purity Raw Materials Selection: Strictly selected ≥ 99.9% electrolytic nickel and titanium sponge , impurity content (O / C / N) control at the ppm level, to meet the ASTM F2063 medical standard
Vacuum Melting: Vacuum melting under inert gas protection, 2nd vacuum self-consumption melting depth to remove impurities, to ensure uniformity of the melting composition, in accordance with the requirements of the Af phase transition temperature, strict adjustment of nickel and titanium components
Hot Rolling: In 800 ~ 1000 ℃ protective atmosphere for a number of hot rolling, to ensure uniform internal grain structure, to eliminate internal defects
Heat Treatment: Rapid cooling at about 850℃ to form austenite phase. 300~500℃ aging treatment. Adjust the martensite phase transition temperature

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Our Inspection

Dimensional Inspection: 100% full inspection of the diameter and length of each batch of nickel-titanium alloy rods.
Chemical Composition Testing: Nickel, titanium and impurity composition testing by a third party laboratory.
Microstructure: SEM/EDS scanning electron microscope to detect grain size and surface or cross-section defects.
Mechanical Properties: Measurement of tensile strength, superelasticity test and flexural fatigue life using standard ASTM E8/E21.

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