Linear Elastic Nitinol

When Linear Elastic Nitinol is subjected to strain, the stress increase is nearly proportional. This linear performance sets it apart from standard superelastic or shape memory Nitinol, which would deform more easily upon reaching its plateau stress. This product features a stiffer wire that offers greater pushability, primarily required by guidewire applications, along with greater strength without sacrificing 1:1 torque transmission. Linear Elastic Nitinol will recover up to 4% strain, which is not dependent on a temperature induced phase change.

Design specifications

Size range 0.0762 mm [0.003 in] to 0.635 mm [0.025 in]
Linear Elastic Nitinol is available in discrete lengths ranging from 51 mm [20.0 in] to 5 m [197 in]
Available in all superelastic alloys with NiTi #1 and NiTi #9 being most common.
Surface finishes
- Light oxide
- Dark oxide
- Etched
- Pickled
- Mechanically polished
- Silk® Nitinol wire

You can learn more about the mechanical performance of Linear Elastic Nitinol using the information below.

Note Exposure to temperatures above 250 °C [482 °F] may alter the mechanical properties of Linear Elastic Nitinol products.

Axial testing at various temperatures

Line graph depicting strain and stress levels at negative 20 degrees celsius, 22 degrees celsius, and 60 degrees celsius

Bend moment comparison of various Nitinol conditions

Line graph comparing the bending load of DPS Nitinol wire, Linear elastic Nitinol, Superelastic Nitinol, and USN wire

Axial tension testing of various Nitinol conditions vs. stainless steel

Line graph comparing the axial tension between Superelastic Nitinol, Linear elastic Nitinol, DPS Nitinol wire,and 304V stainless steel

Typical end uses

Guidewires