Nitinol Spring

CAS No.:	52013-44-2
Linear Formula:	NiTi
Material:	Shape Memory NiTi Alloy - Superelastic NiTi Alloy
Surface:	Black, Pickled or Polished
Shape:	Spring
Size:	Per Drawings

 

Product Description

Nitinol Springs are made from NiTi alloy (Nickel-Titanium) and exhibit the unique properties of shape memory and superelasticity. These springs are designed to revert to a pre-defined shape upon heating or when subjected to certain stress conditions. Nitinol's superelasticity allows these springs to withstand significant deformation and return to their original form, making them ideal for demanding medical, aerospace, and industrial applications where high strength and reliability are crucial.

 

Features & Properties

Shape Memory Effect – Springs can revert to their original shape when heated above their transformation temperature, providing precise control in mechanical systems.

Superelasticity – Able to undergo large elastic deformations and return to the original shape without permanent damage, even under extreme conditions.

High Durability – Nitinol springs exhibit excellent fatigue resistance, ensuring long-term performance even under constant use.

Corrosion Resistance – Highly resistant to corrosion and degradation, especially in harsh environments.

Biocompatible – Safe for use in medical devices, making them suitable for implants, stents, and surgical tools.

Temperature Sensitivity – Customizable transformation temperatures for tailored functionality in specific environments.

 

Product Specifications

Material: Shape Memory NiTi Alloy, Superelastic NiTi Alloy

Surface Finish:

Black

Pickled

Polished

Size:

Diameter: Customizable based on specific application requirements

Length: Customizable per customer specifications

Spring Type: Compression, Tension, or Custom designs

Transformation Temperature: Can be adjusted based on customer requirements, typically ranging from -20℃ to 120℃.

 

Product Standards

ASTM F2063 – Standard specification for shape memory alloys and superelastic alloys used in medical, industrial, and aerospace applications.

ASTM F2633 – Specification for NiTi alloys used in the manufacturing of medical devices and other applications.

 

Production Method & Production Equipments

Nitinol Springs are produced through precision engineering processes to ensure consistent shape memory and superelastic characteristics:

Cold Working & Rolling: Achieves precise dimensional accuracy for spring formation.

Heat Treatment: Induces the required phase transitions for shape memory and superelasticity.

Pickling/Polishing: Surface treatments that enhance the corrosion resistance and aesthetic quality of the springs.

Custom Forming: Springs are custom-designed to meet specific application requirements, ensuring optimal performance in their intended use.

 

Applications & Related Industries

Medical Devices – Nitinol springs are used in stents, guidewires, heart valves, and implants due to their biocompatibility and shape memory properties.

Aerospace & Automotive – Utilized in actuators, mechanisms, and seals where reliability and performance are essential.

Industrial Equipment – Employed in valves, springs, vibration dampers, and control systems that require precision and adaptability.

Robotics – Integrated into robotic actuators and artificial muscles for enhanced flexibility and movement capabilities.

 

Interesting Facts

Nitinol Springs are self-healing, which means they can recover from small amounts of deformation, making them highly durable.

The use of Nitinol springs in medical devices revolutionized surgeries, where stents expanded automatically within the body without external intervention.

Shape memory alloys like Nitinol are being increasingly used in smart applications, where temperature-sensitive movements and responses are critical.

 

Synonyms

Nitinol Memory Springs

NiTi Shape Memory Springs

Superelastic Springs

NiTi Spring

Shape Recovery Springs

 

Health & Safety Information

Biocompatible – Nitinol alloys are widely accepted for use in medical implants and devices due to their non-toxic properties.

Non-corrosive – Nitinol's exceptional resistance to corrosion makes it ideal for long-term use in the human body and harsh environments.

Safe Handling: While pickled or polished, handle with care to avoid sharp edges, and always use proper protective gear.

Shipping & Delivery Information

Packaging: Springs are packaged carefully to avoid any deformation or damage during transit, typically in protective bags or boxes.

Lead Time: Generally 10-15 business days, depending on order size and customization requirements.

Customization: Custom sizes, shapes, and transformation temperatures are available to meet specific application needs.

 

Contact Us for Inquiries & Custom Orders

Our team is ready to assist you with custom Nitinol spring solutions. Contact us for a consultation, quote, or to discuss your unique requirements. We ensure our products meet the highest standards of performance, durability, and quality.

 

Chemical Identifiers

Linear Formula	NiTi
MDL Number	MFCD02091734
EC No.	610-765-8
Pubchem CID	10313097
IUPAC Name	nickel; titanium
SMILES	[Ti].[Ni]
InchI Identifier	InChI=1S/Ni.Ti
InchI Key	HZEWFHLRYVTOIW-UHFFFAOYSA-N

Nitinol Properties (Theoretical)

Compound Formula	NiTi
Appearance	Metallic solid in various forms
Melting Point	1300 °C
Boiling Point	N/A
Density	6.45 g/cm3
Solubility in H2O	N/A
Poisson's Ratio	0.33
Specific Heat	0.20 cal/g·°C
Tensile Strength	895 MPa (Ultimate, fully annealed)
Thermal Conductivity	0.18 W/cm (austenite), 0.086 W/cm (martensite)
Thermal Expansion	11.0 x 10-6/°C (austenite), 6.6 x 10-6/°C (austenite)

 

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