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Superelastic Nitinol Alloys / Shape memory Nitinol alloys / Nitinol Memory Wire 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 aretwo 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 shapewhen heated above its transformation temprature. The first category is often used for orthodontics (braces, wires, etc) andeyeglasses. EST makes shape memory alloys, which are primarily useful for actuators, used in many different mechanicaldevices. Chemical CompositionReference ASTM F2063-2012 or GB 24627-2009; Af Temperature Range -40C~85C Nitinol Wire For FishingDiameter RangeOD0.08mm~OD7.00mm Surface State Options • Oxide surface(including Black oxide, Blue oxide, Amber oxide) • Etched surface • Polished surface • Ground surface Tolerances 4.000~2.000mm ±0.020mm 2.000~1.000mm ±0.015mm 1.000~0.350mm ±0.010mm 0.350~0.260mm ±0.007mm 0.260~0.150mm ±0.005mm 0.150~0.080mm ± 0.004mm StandardASTM F2063-05 Q/XB1516 Customer specified or Industry Standard Nitinol wire Specifications AlloyChemicalcompositionAf(Fully annealed)Min. elongation to failure [%]Max. Residualelongationafter 6%strain [%]Main ApplicationsSpecificationsSuperelasticNi-Ti alloyTiNi-SSTi-50.8at%-5°C ± 5°C.100.1Eyeglass frames, Cellular Phone Antennae, Bra UnderwireQ/XB1516.2Q/XB1516.2TN3TNCTiNiVAlTiNiCr-40°C ~50°C100.1Body temperatureNi-Ti alloyTiNi-YYTi-50.7at%NiFunctional Af=33 ± 3150.1Implantable devices,Bone staplesVascular StentsASTM 2063Ti-Ni-0155.6~55.8 wt%Ni20 - 40150.1Guide wires, StentsOrthodontic ArchesQ/XB1516.1High temperature Ni-Ti alloyTi-Ni-0254.8~55.5wt%Ni45 - 95100.1Implantable active devices, Surgical tools, Thermostats CoffeepotsQ/XB1516.1 Nitinol wire alloy code: Regular binary NiTi alloy code, main composition, and typical active Af temperature (per ASTM F2063-05 or GB 24627-2009) *The real active Af temperature may varies with actual composition, thermo-mechanical history of the products. Alloy codeABSCDEMain composition mass%Ni55.0755.6655.7655.8655.9656.25*Active Af after heat treatment, °C75 /-528 /-523 /-511 /-55 /-5-15 /-5Regular ternary NiTi alloy code, main composition, and typical active Af temperature Alloy codeFGIJHMain composition mass%Ni44.0Ti55.8Ni0.2Cr44.0Ti55.2Ni0.8Cr50.0Ti45.0Ni5.0Cu50.0Ti49.7Ni0.3V47.0Ni44.0Ti9.0Nb*Active Af after heat treatment, °CSimilar to binary Nitinol D with higher strengthSimilar to ternary NiTi0.2Cr with higher strength42 /-5-32 /-6142 /-10 *The real active Af temperature may vary with actual composition, thermo-mechanical history of the product. We manufactures different medical grades (binary NiTi code D, C, S, E and ternary NiTiV code J) of Nitinol wire products available in either as straightened super-elastic (SE) wire or the cold worked (CW) condition wire ready for heat treatment. Heat Treatment Status: Medical grade Nitinol wire may be purchased in the super-elastic condition (SE) or the cold worked (CW), and after the correct supper-elastica heater treatment will accommodate strain up to 8% without permanent kinking at body temprature. Typical transformation temperatureThe transformation temperatures and mechanical properties for typical grades of Nitinol are presented in the table below: Nitinol codeNi contentmass%NiAs straightened super-elastic (SE)Cold worked (CW)Typical mdeical applicationssb MPaΔ%sload MPasunloadMPaActive Af°CIngot Asby DSC As °Csb MPaNitinol-D regular55.96> 1240> 10> 482>138 10 ~ 18-30 ~ -10> 1378Guide wires, stents, shapeset parts, stone retrieval baskets, orthodontic files, etcNitinol-D High fatiqute55.96> 1240> 10> 448>103 14 ~ 22-10 ~ 10> 1378For device require high cycling performance at 37°CNitinol-S regular55.76> 1000> 10> 400Depand on Af 15 ~ 28-10 ~ 10> 1150For device with high fatigue file such as implants, stents
