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Ni - Ti Alloy Temperature Guides

NiTi binary alloys designated by As (Austenite Start Temperature) in the fully annealed condition:

Shape Memory Alloys
As = +95oC
As = +70oC
As = +60oC
As = +55oC
As = +45oC
Body Temperature Alloys
As = +5oC
As = +0oC
As = 0oC
As = -5oC
As = -15oC
As = -15oC
High Strength Superelastic Alloys
As = -25oC
As = -50oC

NiTiCr: Superelastic alloys containing up to 1% chromium to improve strength.

NiTi- 6.6%Cu: Shape memory alloys containing copper to reduce the transformation temperature range and mechanical hysteresis.

NiTi-1.6% Fe: Superelastic NiTi with Fe to improve cold workability and stabilize R-phase transformation.

NiTi-3.4% Fe: Superelastic NiTi with Fe to reduce transformation temperature to the cryogenic temperature range; alloy also has higher cold workability.

Chart 1 - CHART 1 DESC

Chart 2 - CHART 2 DESC