Nitinol is a term for binary near equal-atom Ni-Ti alloys, and it is widely used in medical due to its unique super-elasticity. However, Ternary or other Nickel-Titanium alloys can be achieved for different properties. All incoming Nitinol raw materials are subjected to third party inspection to ensure they meet proprietary specifications for chemistry, transformation temperature, material homogeneity, and microstructure. To promote an exceptionally smooth and uniform surface finish quality, all wire and tube products utilize a high precision single and/or multi crystalline diamond drawing die technology to reach the final wire diameter.
Applicable Standards and Documents
● ASTM F2063-12 Standard Specification for Wright Nickel-Titanium Shape Memory Alloys for Medical Devices and Surgical Implants, or equivalent GB 24627-2009
          Chemical Composition Control Range    
● ASTM F2633-19 Standard Specification for Wrought Seamless Nickel-Titanium Shape Memory Alloy Tube for Medical Devices and Surgical Implants.
● ASTM F2005-05(2015) Standard Terminology for Nickel-Titanium Shape memory Alloys
● ASTM F2004-17(2017) Standard Test Method for Transformation Temperature of Nickel-Titanium Alloys by Thermal Analysis
● ASTM F2516-18 Standard Test Method for Tension Testing of Nickel-Titanium Superelastic Materials
● ASTM F2082/F2082M-16 Standard Test Method for Determination of Transformation Temperature of Nickel-Titanium Shape Memory Alloys by Bend and Free Recovery
Ordering Information on Nitinol Wires and Tubes
Per ASTM F2063-12 or GB 24627-2009, ordering information or request for quotation should contain following info:
● Chemical composition or alloy code;
● Transformation temperature for the material at delivery status, such as Af
● Shape of the material such as bars, wires, tubing, or others
● Dimensions, such as diameter, OD & ID of tube, as well as their tolerances
● Heat Treatment status at delivery, such as Super-elastic, Cold Worked
● Surface status at delivery
● Mechanical Properties: When delivered in super-elastic state, upper plateau stress, tensile strength and elongation should be specified; when delivered in cold-worked state, tensile strength and elongation should be specified
● Quantity, such as weight, length, or number of pieces
Certification and Labeling Information
产A certification indicating that the material meets the requirements of specification, plus test reports shall be given with shipment.
Testing Report: In terms of superelastic wires or tubes, following data should be given
● Dimension
● Elongation
● Upper plateau stress
● Active Af by Bend & Free Recovery
● Permanent set after straining to 6% strain
● Chemical analysis
Labeling Information
● Product Code
● Product Name
● Lot #
● Raw Material
● PEIERTECH Inspection Report #
● QTY such as meter, kilogram, piece
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