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🩺Origins & milestones

Nitinol · Near-equiatomic Ni–Ti that remembers shape and super-elasticates — stents, orthodontics and actuators.

At a glance
Timeline

Milestones in order. This is history, not a weekly activity grid.

1959 Buehler NOL1961 Coffee-pot demo1970s Orthodontic archwires1980s Pipe couplings1990s Self-expanding stents2000s ASTM F20632010s Additive NiTi2010s Actuator wires2020s Fatigue standards2020s Ni-free cousins
  1. Buehler NOL
  2. Coffee-pot demo
  3. Orthodontic archwires
  4. Pipe couplings
  5. Self-expanding stents
  6. ASTM F2063
  7. Additive NiTi
  8. Actuator wires
  9. Fatigue standards
  10. Ni-free cousins
Score intensity

Darker cells mean a higher score for this topic on that metric.

Last reviewed Sources & creditsMedia creditsMethodology

Quick answers

Is Nitinol non-combustible?

Declared reaction class in this atlas: A1 metal. Assemblies still need resistance tests.

Does Nitinol insulate?

Thermal mark 12/100 versus the atlas. Conductivity note: ~10–18 W/m·K.

What is the density band?

~6.45 g/cm³

How is it made?

Origin story: NOL 1959 Buehler (United States).

Can it be recycled?

Circularity mark 36/100 — editorial, route-specific.

Typical melting or failure heat?

~1310 °C

heat 50 · fire 78

Start with this section - Origins & milestones

Nitinol did not arrive as a finished commodity. NOL 1959 Buehler around United States still explains who makes it and which tests it sits in.

Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.

Where it began

NOL 1959 BuehlerUnited States

Timeline

1959Buehler NOL

William Buehler’s team at Naval Ordnance Lab named NiTiNOL.

1961Coffee-pot demo

Folded strip unkinks in hot water — the myth and the lab both persist.

1970sOrthodontic archwires

First large medical market.

1980sPipe couplings

Cryofit aero hydraulic couplings.

1990sSelf-expanding stents

Nitinol cages in vessels.

2000sASTM F2063

Wrought NiTi medical spec.

2010sAdditive NiTi

Porous implants, still tricky oxygen.

2010sActuator wires

Robotics and consumer gadgets of mixed reliability.

2020sFatigue standards

Million-cycle claims need waveform honesty.

2020sNi-free cousins

Ti-based SMAs for nickel-sensitive patients.

The eras

1970s

Orthodontic archwires

First large medical market.

1990s

Self-expanding stents

Nitinol cages in vessels.

2010s

Additive NiTi

Porous implants, still tricky oxygen.

2020s

Fatigue standards

Million-cycle claims need waveform honesty.

Milestones

Pipe couplings

1980s

Cryofit aero hydraulic couplings.

Additive NiTi

2010s

Porous implants, still tricky oxygen.

Ni-free cousins

2020s

Ti-based SMAs for nickel-sensitive patients.

Knowing this timeline is how to read a mill certificate without treating Nitinol as timeless.

Keep exploring

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