Nickel Titanium (also known as Nitinol or NiTi) is in the unique
class of shape memory alloys. A thermoelastic martensitic phase
transformation in the material is responsible for its extraordinary
properties. Nitinol alloys are typically made of 55%-56% Nickel and
44%-45% Titanium.
Small changes in composition can significantly impact the
properties of the material. There are two primary categories of
Nitinol. The first, known as "SuperElastic", is characterized by
extraordinary recoverable strains and kink resistance.
The second category, "Shape Memory" alloys, is valued for the
Nitinol's capacity to recover a pre-set shape when heated above its
transformation temprature. The first category is often used for
fishing. SZNK makes shape memory alloys, which are primarily useful
for actuators, used in many different mechanical devices.
Tensile Test | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation (%) | reduction of aera | grain size | Bend Test a>130 | ak(J/cm²) | IE Impact strength (mm) |
1050 | 230 | 17 | / | 6 | Q | / | / |
Chemical Composition | Ti(%) | Fe(%) | C(%) | O (%) | N(%) | H(%) | Co (%) | Ni(%) |
Remainder | 0.008 | 0.044 | 0.026 | 0.00 2 | 0.001 | / | 55.76 |
roduct type | Grade | Transformation Temperature | Surface | Dimater Range | Standard |
Shape Memory Nitinol Alloy | NITI-01 | 20℃-40℃ | polished pickling Black oxide | 0.01-6.0mm | Customer specified or Industry Standard |
NITI-02 | 45℃-90℃ |
Superelastic Nitinol alloy | NI-TI-SS | -5℃-5℃ | polished pickling Black oxide | |
Low temperature super-elastic nitinol alloy | TN3 | -5℃- -15℃ | polished pickling Black oxide | 0.01-3.0mm | (ASTMF2063 Q/XB1516.1 Q/XB1516.2) |
TNC | -20℃- -30℃ |
Medical nitinol alloy | TINI-SS | 33℃ ±3℃ | polished pickling | 0.01-3.0mm |