Spherical NiTi 50.5-51.5 at% with Af certified to ±5°C, O < 500 ppm. LPBF and MIM cuts for medical implants and actuators. DSC data per lot.
QUICK ANSWER
NiTi nitinol powder is a nickel-titanium intermetallic (50.5-51.5 at% Ni) with shape-memory and superelastic behavior — the material that remembers its shape. Supplied in atomized spherical cuts for additive manufacturing and MIM, it enables 3D-printed stents, actuators, couplings, and deployable structures that bend, recover, and work where no conventional metal can.
Nitinol's magic is a solid-state phase transformation: below its transformation temperature it deforms like soft plasticine, and on heating it snaps back to its programmed shape with force — or at body temperature it springs superelastically through strains ten times beyond steel's elastic limit. Additive manufacturing with nitinol powder is opening geometries impossible to machine from wire or tube: lattice stents, patient-specific implants, and integrated actuators. Powder buyers (medical device and aerospace manufacturers) purchase on certified nickel content (which sets transformation temperature to the degree), oxygen control, and AM processing data.
MATERIAL DATA
Lot-level controls focus on the chemistry, particle characteristics, and process values that influence manufacturing consistency and finished-part performance.
| Element | Content | Performance Role |
|---|---|---|
| Nickel (Ni) | 50.5-51.5 at% | Sets the transformation temperature — 0.1 at% shifts it ~10 °C |
| Titanium (Ti) | Balance | Intermetallic partner forming the NiTi phase |
| Oxygen (O) | < 0.05 wt% | Interstitial control — oxygen degrades transformation behavior |
| Carbon (C) | < 0.02 wt% | Strictly limited for superelastic performance |
| Other elements | < 0.1 wt% | Impurities shift transformation temperatures |
Final limits can be aligned with the agreed purchase specification.
APPLICATIONS
Medical devices are the highest-value market: nitinol's superelasticity and biocompatibility made it the standard for self-expanding stents, guidewires, orthodontic archwires, and surgical tools — and AM nitinol powder now prints patient-specific implants, porous bone scaffolds with body-matched stiffness, and complex minimally-invasive device components. Medical manufacturers buy powder under ASTM F2063-aligned chemistry with full transformation-temperature certification, because a stent's deployment behavior is written in the powder's nickel content.
Aerospace, robotics, and industrial actuation form the second market: shape-memory couplings that shrink-lock hydraulic fittings, deployable satellite structures, vibration-damping components (nitinol's hysteresis absorbs energy), and compact actuators that replace motors in morphing structures and robotics. These applications buy on functional testing — transformation temperatures, recovery stress, and cycle stability — with the powder supplier's processing guidance often deciding whether the program succeeds.
SPECIALTY & COMPOSITE POWDERS
CUSTOM SUPPLY
We supply spherical nitinol powder in LPBF and MIM cuts with certified nickel content (transformation temperature specified to ±5 °C), oxygen below 500 ppm, and lot-level DSC transformation curves. Custom transformation temperatures, AM parameter development support, and small development quantities alongside production supply are available. Not export-controlled.
We supply spherical nitinol powder in LPBF and MIM cuts with certified nickel content (transformation temperature specified to ±5 °C), oxygen below 500 ppm, and lot-level DSC transformation curves.
Custom transformation temperatures, AM parameter development support, and small development quantities alongside production supply are available.
MATERIAL COMPARISON
| Comparison Point | This Product | Wrought Nitinol |
|---|---|---|
| Geometry capability | Lattices, internal channels, any 3D form | Wire, tube, sheet forms only |
| Part cost at complexity | Fixed by build | Explodes with machining difficulty |
| Transformation performance | Near-wrought after heat treatment | Reference standard |
| Surface finish | As-built needs finishing | Ground/polished available |
| Fatigue performance | Good — pore control critical | Benchmark |
| Best use | Complex implants, integrated actuators | Stents (laser-cut), guidewires, springs |
TECHNICAL FAQ
Need a different chemistry, particle range, or processing route? Our material team can review the requirement and supply window.
To ±5 °C of target through nickel content control at 0.05 at% resolution, verified by DSC per lot. Specify your required Af (austenite finish) temperature and we produce and certify to it.
Yes — properly processed AM nitinol meets the same biocompatibility expectations as wrought, supported by ASTM F2063 chemistry compliance. Our medical lots ship with the documentation your regulatory team needs for their own device qualification.
Heat treatment to set shape and transformation behavior, plus surface finishing (electropolishing standard for medical). We provide heat-treatment guidance matched to the powder chemistry.
With strict oxygen control, yes — but transformation temperature drifts with interstitial pickup. We provide reuse-ratio guidance and recommend oxygen monitoring per build.
No. Nickel-titanium powders ship without licensing requirements.
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