Nitinol Tube
Nitinol Tube
Material: NiTi, NiTiFe, NiTiCu, NiTiCo, NiTiCuCr, NiTiNb, etc.
Standard: ASTM F2063-12
Nitinol Tube is made from nickel and titanium in a near 1:1 ratio. It has a unique shape memory effect and superelasticity, widely used in medical devices, aerospace, robotics, and consumer electronics. The capillary tube is also our star product. As a leading supplier and manufacturer of premium nitinol alloys products, Heeger Metal leverages advanced technology to deliver high-quality nitinol tubes for various applications.
Or email us at sales@heegermaterials.com.Nitinol Tube Data Sheet
| Material: | NiTi, NiTiFe, NiTiCu, NiTiCo, NiTiCuCr, NiTiNb, etc. |
| Category: | Superelastic and Shape-memory |
| Standard: | ASTM F2063-12 |
| Diameter: | ≥0.25 mm, or customized |
| Available Shape: | Rod, Bar, Rectangular bar, Threaded Rod, or customized |
| Surface: | Black, Pickled, or Polished |
| Af Temperature: | -10 ℃ to 120 ℃ |
What Is The Nitinol Alloy?
Nitinol, also called NiTi shape memory alloy, is a metal alloy composed of nickel and titanium, typically in a near 1:1 ratio. It has a unique shape-memory effect and superelasticity, allowing it to return to a preset shape when heated or recover its original form after significant deformation. It offers an expansion rate of over 20%, a fatigue life of 107 cycles, damping properties ten times greater than regular springs, and superior corrosion resistance compared to stainless steel. Due to its excellent biocompatibility, corrosion resistance, and mechanical properties, Nitinol alloy is widely used in medical devices (e.g., stents and orthodontic wires), aerospace, industrial manufacturing, and consumer products.
Nitinol Tube
Nitinol Tube is known for its unique shape memory effect and superelasticity. At room temperature, the Nitinol tube can undergo significant deformation and fully recover its original shape, while heating it to a specific temperature triggers its ability to “remember” and return to a pre-set form. It also has excellent biocompatibility, corrosion resistance, and high fatigue life, making it widely applied in medical, aerospace, automotive, electronics, and energy industries. Its high damping performance and temperature sensitivity further expand its potential in vibration damping, temperature control, and smart structures. HM can offer customized solutions for diameter and surface state according to specific requirements.
Nitinol Tube 
Nitinol Capillary Tube
Nitinol Tube Mechanical Properties: Superelastic Grades
| Cold Worked | Superelastic | |||||||
| Grade | Ingot As(℃) | Min. Uts(psi) | Elongation(%) | Min. Uts(psi) | Elongation(%) | Loading Plateau(ksi) | Unloading Plateau(ksi) | Active Af (℃) |
| Nitinol #1 | -35 to -10 | 220,000 | >4 | 180,000 | >10 | >70,000 | >20,000 | +10 to +18 |
| Nitinol #2 | -45 to -15 | 250,000 | >4 | 210,000 | >10 | >80,000 | >35,000 | 0 to +18 |
| Nitinol #4 | -10 to +10 | 220,000 | >4 | 180,000 | >10 | >65,000 | >7,000 | +14 to +22 |
| Nitinol #9 | ≥ +35 | 220,000 | >4 | 160,000 | >10 | >75,000 | >25,000 | ≤0 |
Nitinol Tube Mechanical Properties: Shape-Memory Grades
| Cold Worked | Shape-memory | |||||||
| Grade | Ingot As(℃) | Min. Uts(psi) | Elongation(%) | Min. Uts(psi) | Elongation(%) | Loading Plateau(ksi) | Unloading Plateau(ksi) | Active Af (℃) |
| Nitinol #5 | ≥ +85 | 220,000 | >3 | 160,000 | >10 | N/A | N/A | ≥ +85 |
| Nitinol #6 | +35 to +85 | 220,000 | >3 | 160,000 | >10 | N/A | N/A | +40 to +80 |
| Nitinol #8 | +10 to +35 | 220,000 | >3 | 160,000 | >10 | N/A | N/A | +22 to +40 |
Nitinol Tube Material Chemical Composition
| Chemical Composition (wt%) | ||||
| Fe | Ni | Cr | Cu | Nb |
| ≤0.05 | 54.5-57.0 | ≤0.01 | ≤0.01 | ≤0.025 |
| C | Ti | Co | N+O | H |
| ≤0.05 | Balanced | ≤0.05 | ≤0.050 | ≤0.005 |
Nitinol Tube Dimensions and Tolerances
| OD (mm) | OD Tolerance (mm) | ID Tolerance (mm) |
| OD≤0.3 | ±0.005 | ±0.010 |
| 0.3≤OD≤0.5 | ±0.007 | ±0.015 |
| 0.5≤OD≤1.5 | ±0.015 | ±0.020 |
| 1.5≤OD≤2.5 | ±0.020 | ±0.030 |
| 2.5≤OD≤3.5 | ±0.020 | ±0.040 |
Nitinol Tube Advantages
- Smooth product surface
- High dimensional accuracy
- Good plasticity
- Cold working deformation of up to 40% or more
- Excellent superelasticity after treatment
Nitinol Tube Surface Finish
- Black: The surface is “as swaged” or “as drawn”, retaining a coating of processing lubricants and oxides.
- Cleaned: The surface is chemically cleaned to remove all lubricants and oxides.
- Ground: The surface is centerless to remove all coating and achieve precise dimensions control.
Nitinol Tube Applications
- Medical Field: Nitinol tubes are often used as medical devices such as vascular stents, guide wires, or catheters due to their super elasticity.
- Aerospace: The shape memory effect of Nitinol tubes can be used to manufacture variable structural components in spacecraft, such as drive units or pipe connections.
- Industry and Engineering: Nitinol tubes can make temperature-sensitive valves or actuators due to their shape memory effect. Their superelastic properties make them suitable for vibration damping or shock absorbing equipment.
- Robotics & Automation: In micro-robots or bionic devices, Nitinol tubes can be used as muscle simulators to provide precise motion control.
Nitinol Tube Packaging
Nitinol Tube products are carefully placed in wooden cases or cartons, with additional support from soft materials, to prevent shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.
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Other Tube/Pipe Products
Heeger Metal provides high-quality custom tube and pipe products in a variety of materials including stainless steel, titanium, nickel alloys, and more. Our precision tubes and pipes are available in various sizes and forms, ideal for applications in industries such as aerospace, automotive, energy, and chemical processing. Whether you require seamless tubes, welded pipes, or custom-cut solutions, we deliver products designed to meet your exact specifications with superior strength, corrosion resistance, and long-lasting performance.
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