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Nitinol Grade 5 Rod / Bar

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Nitinol Grade 5 Rod / Bar is a nickel titanium material used where high flexibility, shape recovery, superelasticity, corrosion resistance and controlled transformation behaviour are required. Nitinol rods and bars can be supplied in round, square, hexagonal and other profiles for precision components, actuators, medical devices, robotics, aerospace mechanisms and specialised industrial equipment. The material can be selected according to its required transformation temperature, surface condition, heat treatment and mechanical response. Grade 5 is not an official Nitinol designation; buyers using this search term should confirm they need Nitinol rather than Titanium Grade 5, and can see the Nitinol Rods & Bars page for the general specification. Sachin Steel Centre supplies Nitinol Rod and Bar for specialised applications with custom dimensions and material documentation available according to enquiry requirements.

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Table Of Content

Technical Data

Nitinol Grade 5 Rod / Bar Specification

Specification

Nitinol Grade 5 Rod / Bar

Material

Nickel Titanium Nitinol

Material Type

Wrought nickel titanium shape memory alloy

Applicable Standard

ASTM F2063, ASME SF2063 where applicable

Nickel Content

Nominally 54.5 to 57.0 percent

Titanium

Balance

Product Form

Rod and bar

Profile

Round, square, hexagonal, flat or agreed profile

Diameter

5.50 mm to 94.0 mm per ASTM mill product range, other sizes on request

Length

Standard or custom

Material Condition

Hot finished or cold finished where applicable

Heat Condition

Annealed or heat treated

Surface

Oxidized, descaled, pickled, blasted, machined, ground, polished or electropolished

Functional Behaviour

Shape memory or superelastic

Transformation Temperature

Application specific

Documentation

Material test certificate and agreed inspection documents

Nitinol Grade 5 Rod / Bar Chemical Composition

Nickel

Titanium

Carbon (max)

Oxygen + Nitrogen (max)

Hydrogen (max)

Iron (max)

54.5 to 57.0%

Balance

0.050%

0.050%

0.005%

0.050%

Other intentional alloy additions are not permitted under the ASTM F2063 material scope.

Mechanical Properties of Nitinol Grade 5 Rod / Bar

Material Condition

Ultimate Tensile Strength

Elongation

Upper Plateau Stress

Permanent Set After 6% Strain

Active Af Temperature

A

≥1300 MPa

≥10%

≥480 MPa

<0.5%

10±7°C

B

≥1150 MPa

≥10%

≥440 MPa

<0.5%

17±7°C

C

≥1000 MPa

≥10%

≥400 MPa

<0.5%

25±5°C

D

≥950 MPa

≥10%

≥300 MPa

<0.5%

35±5°C

E

≥550 MPa

≥15%

≥200 MPa

<0.5%

35±8°C to 110±8°C

ASTM F2063 requires mechanical properties such as tensile strength and elongation to be determined after annealing. Material condition should be confirmed against the applicable purchase specification and material certificate.

Nitinol Grade 5 Rod / Bar Physical Properties

Nitinol has a combination of physical and functional properties that makes it useful for applications where ordinary metals cannot provide the required recoverable deformation.

Physical Property

Nitinol Grade 5 Rod / Bar

Alloy

Nickel Titanium

Density

Approximately 6.45 g/cm³

Melting Temperature

Approximately 1310°C

Elastic Modulus

Phase dependent

Electrical Behaviour

Temperature and phase dependent

Thermal Behaviour

Temperature and phase dependent

Transformation Behaviour

Dependent on composition and processing

Shape Memory

Available in suitable material conditions

Superelasticity

Available in suitable material conditions

Corrosion Resistance

High in many service environments

The physical values should be treated as typical information unless a specific purchase specification provides guaranteed values.

Nitinol Rod Af Temperature and Transformation Behaviour

Af refers to the Austenite finish temperature. It is particularly important when Nitinol is being selected for shape memory or superelastic applications.

Transformation Parameter

Meaning

Ms

Martensite start temperature

Mf

Martensite finish temperature

As

Austenite start temperature

Af

Austenite finish temperature

Transformation Range

Temperature interval over which phase transformation occurs

Operating Temperature

Temperature at which the component is expected to function

Frequently Asked Questions

No. Nitinol is a nickel-titanium alloy, while Titanium Grade 5 is Ti 6Al 4V. They have different chemical compositions and different functional properties. Nitinol can provide shape memory and superelastic behaviour under suitable conditions, while Titanium Grade 5 is primarily selected for strength, low density, and corrosion resistance.

Nitinol Grade 5 is not a general ASTM Nitinol grade designation. Nitinol is normally specified according to its applicable material specification, nickel titanium composition, transformation characteristics, and material condition.

‘Nitinol Grade 5 Rod/Bar’ is a search term used for nickel titanium material supplied in rod or bar form. Buyers using this term should confirm the required Nitinol composition, standard, and functional properties rather than assuming that Grade 5 represents an official Nitinol grade.

Nitinol Rod commonly refers to round nickel-titanium material, while ‘nitinol bar’ can describe a wider range of cross-sectional forms, including round, square, hexagonal, and flat products. The exact terminology depends on the supplier and applicable specification.

ASTM F2063 26 covers applicable wrought nickel-titanium bars and other products used for medical devices and surgical implants. The standard specifies chemical, physical, mechanical, and metallurgical requirements.

Request a Quote for Nitinol Grade 5 Rod / Bar

For a Nitinol Grade 5 Rod / Bar enquiry, provide the required profile, diameter or cross section, length, quantity, surface finish, material condition, functional requirement and transformation temperature where applicable. Sachin Steel Centre can review the requirement and help identify the appropriate Nitinol Rod or Nitinol Bar for the intended application.

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