Nitinol Tubing

Guide to Tech Tube Nitinol Alloy Names

 

Nitinol Alloys

Alloy

Description

Typical Applications
Bin-Niti-N15-N5 High Strength stents, baskets, filters
Bin-Niti-N5-15 Superelastic stents, cell phone antennae, needles, guide wires, baskets, filters
Bin-Niti-15-45 Superelastic stents, cell phone antennae, needles, guide wires, baskets
Bin-Niti-30-40 Body Temperature guide wires, stents, baskets, filters
Bin-Niti-45-95 Shape Memory industrial applications
Bin-Niti-110-120 Shape Memory industrial applications
Tern-Niti-N15-N5   industrial applications
Tern-Niti-5-15   industrial applications

Material Properties

Element Weight %
Nickel 54.5-57.0
Carbon (max) 0.050
Cobalt (max) 0.050
Copper (max) 0.010
Chromium (max) 0.010
Hydrogen (max) 0.005
Iron (max) 0.050
Niobium (max) 0.0250
Oxygen (max) 0.050
Titanium Balance

-Chemistry meets the requirements of ASTM F 2063 with carbon restricted to 0.050 max.

Mechanical Properties

Alloy Transformation Temperature (Af) Typical Mechanical Properties at Room Temperature
Minimum Maximum UTS Plateau Stress Elongation min Permanent Set max
(°C) (°C) (KSI) Loading (KSI) Unloading (KSI) (% in 4D) (after 8% strain)
Bin-Niti-N15-N5 -15 -5 190 70 30 10 0.5
Bin-Niti-N5-15 -5 15 155 55 20 10 0.5
Bin-Niti-15-45 15 45          
Bin-Niti-30-40 30 40          
Bin-Niti-45-95 45 95          
Bin-Niti-110-120 110 120          
Tern-Niti-N15-N5 -15 -5          
Tern-Niti-5-15 5 15          

Physical Properties

Property US Units Value SI Units Value
Density lb/in3 0.233 to 0.235 gm/cm3 6.45 to 6.5
Specific Heat Btu/lbm °F 5 to 6 Cal/g °C 5 to 6
Melting Point °F 2390 °C 1310
Elastic Modulus (typical)        
Austenite PSI 10.8 x 106 GPa 75
Martensite PSI 5.8 x 106 GPa 40
Resistivity (at 22°C)        
Austenite Ohm inch 208 x 10-6 Ohm cm 82 x 10-6
Martensite Ohm inch 193 x 10-6 Ohm cm 76 x 10-6
Co-efficient of Linear Expansion        
Austenite 10-6/°F 6 10-6/°C 11
Martensite 10-6/°F 5.4 10-6/°C 6.6

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