Nitinol Bar for Medical & Industrial Applications - Superelastic NiTi Rod Stock

Every Nitinol bar we ship comes out of our own plant. Baoji Hanz Metal Material Co., Ltd. runs the whole chain in house. Nothing gets sent out to a subcontractor. Melting takes place under vacuum. Cold working comes next, then the closing heat treatment. Our bars meet ASTM F2063-18 and GB 24627-2009. Chemistry checks put Ni at 54.5–57.0 wt%, and Ti makes up the rest. Sizes run from 3.0 to 50 mm across. Tensile strength can land anywhere between 850 and 1900 MPa. Medical grade is available. Industrial grade is on offer too. The smallest order we take is 1 kg.

Specifications

Name	the bars
Size	Diameter 0.5mm~30mm, length 10mm to 1000mm
Original	Baoji, Shaanxi, China
Feature	superelastic or shape memory, high strength
Af	0~10 C
Application	medical, industry, research, science, decorate, aerospace, energy, building structures and daily life
Surface	bright or black or pickled
Chemical	nickel titanium alloy
Shape	round bar, rod, cylinder
Standard	ASTM F2063
Density	6.5g/cm3

Product	UTS (Mpa)	Elongtion(%)	Af (°C)
TiNi-SS	1241	>10	0~20
Low temperature superelastic nitinol alloy	1241	>10	-20~-10

1. Medical nitinol bar a. Orthopedics b. Heart stent, blood stent, guide tube and guide wire c. Dental orthodontics d. Correction of spinal deformities
	2. Aerospace a. Flight structures, such as wings, Antenna b. Connector and axle bearing c. Smart acturator
3. Energy Field a. Solar power generation b. Wind turbine c. Hydrogen Energy
	4. Building and structure a. concrete structure reinforcement b. bridge seismic design
5. Nitinol bar Daily life and consumption a. Glasses b. Children's toys c. fitness equipment d. wearable devices

Key Features

Superelastic and shape memory behavior

Superelastic response stays stable with this alloy. The shape memory effect repeats as well, across the transformation temperature range you set. Some parts have to come back to a defined geometry after they deform under load. This consistent behavior is what gives them that.

Accurate dimensions and even microstructure

From one end of a bar to the other, diameter tolerance stays at ±0.02–±0.035 mm. Microstructure inside the bar stays even. Lot-to-lot scatter gets smaller because of that. It counts when you machine precision implant blanks or structural parts that need tight tolerances.

Broad mechanical property range

Designers have room to move here. Elongation comes in at 10–20%. Tensile strength spans 850 to 1900 MPa. That spread lets them pick a mechanical profile to suit their own load and deformation needs. Go for an alloy grade stronger than you need and you gain nothing.

Corrosion and fatigue resistance

Corrosive conditions barely touch the nickel-titanium matrix. Load cycles that keep repeating get the same treatment. For medical use, versions are built to the composition standards set for implants and surgical tools.

Customizable Af temperature

Alloy preparation lets the transformation temperature be adjusted from -20°C to +100°C. Thermal-actuated components are where this matters. For those parts, the actuation onset temperature counts as a defined design input.

CNC machining compatibility

Turning, milling, and other CNC operations all work with this bar stock. Finished parts can therefore come straight off the raw stock. No intermediate process steps are needed.

Applications of nitinol bar

Medical devices

This product stock serves as the raw material for ultrasonic scalpel blanks. Orthopedic implant bar stock comes from it too, along with structural substrates for surgical instruments. Superelasticity, high strength, and composition that meets ASTM F2063-18 all come together here. Device makers find it a practical pick for component manufacturing.

Industrial systems

Industrial buyers put the material to work in thermal-actuated stress bars. Tooling structural components are a second use. Sensor bases turn up as well. So do memory-structure elements. Tuning the Af temperature falls to engineers. Actuation behavior can then be matched to the operating conditions of a given mechanical system.

Research and development

Shape memory alloy characterization, material behavior studies, and prototype development all run on this bar stock in labs and R&D teams. Why pick it? The composition data can be traced, and transformation performance stays consistent. Test results therefore reproduce.

Why Choose Baoji Hanz Metal Material Co., Ltd.

Full in-house manufacturing

Nothing gets outsourced. Vacuum melting comes first. After that comes cold working, and final heat treatment ends the run. Direct control over composition is kept the whole way. The same holds for transformation characteristics and dimensional output. Traceability to ASTM F2063-18 and GB 24627-2009 is held at every stage by the team.

Custom specifications

Non-standard diameters, specific Af temperatures, and alternative surface finishes can be accommodated. Both raw bar stock and downstream formed part formats are supported depending on project requirements.

Batch-by-batch inspection

Every production batch gets tested. Checks cover chemical composition and mechanical properties. DSC testing shows the phase-transformation temperature. Test reports are available on request. That supports the documentation you need for regulated end-use applications.

Dual-grade supply

Both medical-grade and industrial-grade material come out of the same manufacturing base. A 1 kg minimum order suits prototype quantities. It works for series production too.

Technical support

The engineering team can help you choose alloy parameters. Advice on the heat treatment conditions that apply to this product is part of it. Machining considerations get covered as well. All of this follows your application requirements.

nitinol bar

Packaging

Every bar gets its own slot. The packaging lies flat. Shock is resisted and moisture stays out. Surfaces do not rub together when the pieces are separated. That is how marks are kept from showing up in transit.

FAQ

Q: What is the minimum order quantity?

A: 1 kg is the MOQ. That amount works for prototype batches and for the first production run too.

Q: What details do you need from me to put a quote together?

A: Tell us the diameter you need. How many pieces do you want? Let us know where they will be used. Do you have specific requirements for the Af temperature? What about the surface condition, or the length? Send those details too. That way the quote matches what you actually need.

Q: Can the Af transformation temperature be customized?

A: Yes. We can set any Af temperature from -20°C to +100°C. The right value depends on the actuation temperature your application needs.

Q: Which standards does the product meet?

A: This bar is produced under ASTM F2063-18 and GB 24627-2009. Chemical composition rules come from both standards. Phase-transformation performance requirements are included there too.

Q: Which documents come with the material?

A: Batch test reports are ready when you ask. They list chemical composition and mechanical properties. DSC phase-transformation data are in them too.

Q: Which surface finishes do you offer?

A: Several finishes come as standard. Black scale (oxidized) is one, and so are centerless ground, pickled, and polished. Which one you pick depends on the machining steps that come after it. The surface quality the part needs in service counts as well.

Contact Us

Email your diameter to hztech05@hanztech.cn and a quotation comes back. Add your quantity and application details to that message. We take inquiries for medical-grade and industrial-grade nitinol bar both.