Nitinol Superelastic Capillary tube for Medical ASTM F2063

Product Overview

Nitinol (Nickel–Titanium alloy, NiTi) is a high-performance shape memory alloy (SMA) known for its unique ability to recover its original shape after deformation when exposed to a specific temperature.

This advanced functional material combines shape memory effect, superelasticity, high fatigue resistance, and excellent corrosion performance, making it widely used in medical devices, precision engineering, and high-performance industrial applications.

Key Features & Benefits

Shape Memory Effect

Nitinol can be deformed at low temperature and return to its original shape upon heating due to a reversible phase transformation between martensite and austenite phases.

Superelastic Performance

Exhibits extremely high elastic strain (significantly higher than conventional metals), allowing large deformation without permanent damage.

Excellent Fatigue Resistance

Designed for long-term cyclic loading applications with fatigue life up to 10⁷ cycles or higher, ensuring outstanding durability.

Superior Damping Capacity

Provides vibration absorption performance up to 10 times higher than conventional metallic materials, making it ideal for dynamic environments.

Outstanding Corrosion Resistance

Performs exceptionally well in harsh environments, including physiological and chemical conditions, making it suitable for medical-grade applications.

Material Composition

Nickel (Ni): 54.5% – 57.0%

Titanium (Ti): Balance

Trace elements: C, Co, Cu, Cr, Fe, Nb, N, O, H (strictly controlled)

Small variations in composition significantly influence transformation temperature and mechanical behavior.

Mechanical Properties (Annealed Condition)

Tensile Strength: ≥ 551 MPa

Elongation: 10% – 15% (depending on diameter)

High recoverable strain capability

Excellent elasticity beyond conventional material limits

Seamless Tube Specifications

Outer Diameter (OD) Range

0.4 mm – 12.0 mm

Dimensional Tolerance

OD ≤ 7.5 mm: ±0.020 mm

OD > 7.5 mm: ±0.10 mm

Surface Finish Options

Polished

Black

Blue / Purple / Gold oxidation finish

Performance Advantages

High dimensional stability with excellent shape recovery

Temperature-dependent mechanical response

Exceptional flexibility with no permanent deformation under large strain

Strong vibration and shock absorption capability

Long service life under repeated loading conditions

Applications

Medical Industry

Guidewires

Stents

Orthodontic archwires

Minimally invasive surgical devices

Engineering Applications

Seismic damping systems

Smart structural components

Temperature-responsive actuators

Industrial Applications

Precision mechanical components

Flexible connectors

Vibration-resistant assemblies

Standards & Certification

Manufactured in compliance with ASTM F2063 medical-grade NiTi standard

ISO 9001 Quality Management System

ISO 13485 Medical Device Quality System

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