Nitinol Grade 2 Wire Manufacturer and Supplier in India

Q: What is the difference between Nitinol wire and Titanium Grade 2?

Nitinol wire is a nickel titanium alloy that can exhibit shape memory and superelastic behaviour. Titanium Grade 2 is commercially pure titanium with a different chemical composition and set of material properties. The two materials should not be specified interchangeably.

Q: What diameters is Nitinol wire available in?

Nitinol wire is available in diameters from approximately 0.025 mm to 5.0 mm for this product range, with other sizes available on request. Diameter selection depends on the application, material condition, and required tolerance.

Q: Is Nitinol wire available with a specified Af temperature?

Yes. Nitinol wire can be supplied with a customer specified Af temperature when the application requires a particular shape memory or superelastic response. The required Af temperature should be confirmed according to the material condition and applicable testing requirements.

Q: Is Nitinol Grade 2 Wire the same as ASTM F2063 Nitinol Wire?

Nitinol Grade 2 Wire is not a separate ASTM F2063 grade. Buyers requiring ASTM F2063 Nitinol wire should specify nickel titanium material according to the applicable requirements of the standard and purchase specification.

Q: Can Nitinol wire be supplied with a mill test certificate?

Yes. Nitinol wire can be supplied with a mill test certificate documenting material chemistry and relevant test information according to the applicable purchase specification.

HOME → Materials → Nitinol Products → Nitinol Wires → Nitinol Grade 2 Wire

Nitinol Grade 2 Wire is nickel titanium wire selected for applications requiring shape memory, superelasticity, flexibility, corrosion resistance, and controlled movement. For a Nitinol wire requirement, the alloy condition, transformation temperature, diameter, surface finish, and mechanical properties should be verified before ordering. Sachin Steel Centre offers NiTi wire in various sizes, shapes, and characteristics for healthcare, engineering, actuators, and other specialised applications.

For the complete range of Nitinol wire specifications, sizes, tolerances, chemical composition, and product forms, see our Nitinol Wire page.

Table Of Content

Nitinol Grade 2 Wire Specification
Chemical Composition of Grade 2 Nitinol Wire
Mechanical Properties of Nitinol Wire Grade 2
Equivalent Grades / Standards for Nitinol Grade 2 Wire
Applications of Nitinol Grade 2 Wire
Frequently Asked Questions
Similar Products

Technical Data

Nitinol Grade 2 Wire Specification

The following specification covers Nitinol wire supplied for requirements identified as Nitinol Grade 2 Wire. The applicable material condition, diameter, transformation temperature, and surface requirements should be confirmed against the purchase specification.

Parameter	Specification
Material	Nickel Titanium Nitinol
Common Name	NiTi wire
Applicable Standard	ASTM F2063
ASME Reference	ASME SF2063
Nickel Content	Nominally 54.5 to 57.0 percent
Titanium	Balance
Diameter Range	0.025 mm to 5.0 mm
Other Diameters	Available on request
Available Forms	Round, flat, square, straight, coil and spool
A_f Temperature	Customer specified, approximately minus 30°C to 120°C
Surface Finish	Available according to application and manufacturing condition
Supply Condition	As specified by the customer

Chemical Composition of Grade 2 Nitinol Wire

Nitinol is based primarily on Nickel and Titanium. The balance between these elements is important because relatively small changes in composition can influence transformation behaviour and the resulting shape memory or superelastic response. For Nitinol wire supplied to ASTM F2063 requirements, the principal composition is:

Element	Composition
Nickel	54.5 to 57.0 percent
Titanium	Balance
Carbon	Maximum 0.050 percent
Oxygen plus Nitrogen	Maximum 0.050 percent
Hydrogen	Maximum 0.005 percent
Iron	Maximum 0.050 percent
Cobalt	Maximum 0.050 percent
Niobium	Maximum 0.025 percent
Copper	Maximum 0.010 percent
Chromium	Maximum 0.010 percent

Mechanical Properties of Nitinol Wire Grade 2

Material Condition	Active A_f Temperature Range	Tensile Strength (UTS, MPa)	Loading / Upper Plateau Strength (UPS, MPa)	Lower Plateau Strength (LPS, MPa)	Elongation at Break (%)
Condition A	70 ± 10°C (High Temp Shape Memory)	750 - 950	150 - 300 (Martensitic yield)	—	≥ 12%
Condition B	30 ± 10°C (Body Temp Actuator / SE)	900 - 1,150	380 - 500	150 - 250	≥ 10%
Condition C	17 ± 7°C (Room Temp Superelastic)	1,000 - 1,250	420 - 550	180 - 300	≥ 10%
Condition D	10 ± 10°C (Chilled Superelastic)	1,050 - 1,300	450 - 580	200 - 320	≥ 10%
Condition E	5 ± 10°C (Sub-Zero Superelastic)	1,100 - 1,350	480 - 600	220 - 350	≥ 8%

Equivalent Grades / Standards for Nitinol Grade 2 Wire

Nitinol Grade 2 Wire is specified through established nickel-titanium standards and commercial alloy designations rather than as a separate ASTM Grade 2 material. The following references are commonly used when identifying ASTM F2063 Nitinol wire and related NiTi material:

Standard / Designation	Nitinol Equivalent / Reference
ASTM F2063	Wrought Nickel Titanium Shape Memory Alloy
UNS N01555	Nickel Titanium Shape Memory Alloy
ISO 5832-14	Wrought Nickel Titanium Shape Memory Alloy
NiTi	Nickel Titanium / Nitinol
SE508	Common commercial Nitinol alloy designation
SE508 ELI	Extra low interstitial Nitinol variant

For purchasing, the required material standard, condition, transformation temperature, dimensions, and test requirements should be stated clearly on the enquiry or purchase order.

Applications of Nitinol Grade 2 Wire

Nitinol Grade 2 Wire is selected for applications where flexibility, shape recovery, and controlled movement are important.

Medical: Used for orthodontic archwires, stents, guidewires, and surgical instruments where flexibility and shape recovery are needed.
Aerospace and Robotics: Suitable for actuators, sensors, and compact mechanisms that require controlled movement.
Industrial: Used in springs, connectors, flexible components and temperature-responsive mechanisms.
Consumer Products: Used in flexible eyewear frames and similar products where the wire can recover its shape after bending.

For other Nitinol product forms, explore our Nitinol Rods and Bars and Nitinol Sheets and Plates.

Frequently Asked Questions

Is Nitinol Grade 2 an official designation?

No. Nitinol Grade 2 is not an official Nitinol designation under ASTM F2063. Grade 2 refers to commercially pure titanium, while Nitinol wire is a nickel-titanium alloy with different material characteristics.

What is the difference between Nitinol wire and Titanium Grade 2?

Nitinol wire is a nickel-titanium alloy offering shape memory and superelastic behaviour. Titanium Grade 2 is commercially pure titanium, so the two materials should not be specified interchangeably.

What diameters is Nitinol wire available in?

Nitinol wire is available in diameters from approximately 0.025 mm to 5.0 mm, with other sizes available on request. Diameter selection depends on the application, condition, and required tolerance.

Is Nitinol wire available with a specified Af temperature?

Yes. Nitinol wire can be supplied with a customer-specified Af temperature. This helps achieve the required shape memory or superelastic response for the intended application.

Is Nitinol Grade 2 Wire the same as ASTM F2063 Nitinol Wire?

Nitinol Grade 2 Wire is not a separate ASTM F2063 grade. Buyers requiring ASTM F2063 Nitinol wire should specify nickel titanium material according to the applicable requirements.

Can Nitinol wire be supplied with a mill test certificate?

Yes. Nitinol wire can be supplied with a mill test certificate documenting material chemistry and relevant test information according to the applicable purchase specification.

Request a Quote for Nitinol Wire

Looking for Nitinol Grade 2 Wire for a medical, industrial, or engineering application? Share your required diameter, wire form, quantity, Af temperature, surface finish, and documentation requirements with Sachin Steel Centre. Request a Quote to confirm the correct Nitinol specification before supply and arrange material with the required documentation.

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