Black oxide surface Flat Niti Wire
Delivery time: 3-15 days
Stock:we have more than 500kg falt wire in stock,more fast delivery time
surface: polished black
Product Introduction
Product Overview
Shape Memory Alloys (SMAs) are advanced functional materials capable of returning to their original shape after deformation when exposed to specific temperature changes or stress conditions. This unique behavior results from a reversible phase transformation between martensite and austenite phases.
Nitinol (NiTi alloy) is the most widely used SMA due to its excellent superelasticity, corrosion resistance, and biocompatibility.
Main Applications
SMAs are widely used in:
Metallurgy & manufacturing
Biomedical devices (e.g., stents, orthodontic wires)
Consumer products (e.g., eyeglass frames)
Actuators and mechanical systems
Categories of Nitinol
Superelastic (SE)
Exceptional recoverable strain
Excellent kink resistance
High flexibility and fatigue resistance
Typical applications:
Orthodontic wires
Guidewires
Eyeglass frames
Shape Memory (SM)
Recovers pre-set shape when heated above transformation temperature (Af)
Suitable for thermally activated components
Typical applications:
Actuators
Temperature control devices
Mechanical drive components
Black Oxide Surface NiTi Flat Wire (In Stock)
Surface
Black polished oxide surface
MOQ
5 kg
Available Sizes (mm)
3 × 0.7
3.5 × 0.7
4.0 × 0.7
5 × 0.5
5 × 0.6
5 × 0.8
0.6 × 0.9
0.65 × 1.3
Af Temperature Range
-40℃ ~ 95℃ (customizable depending on alloy composition)
Chemical Composition & Shape-Recovery Temperature
| Alloy Type | Ni (%) | Ti (%) | Co (%) | Cu (%) | Shape-Recovery Temp |
|---|---|---|---|---|---|
| Ni-Ti | 54–56 | Balance | – | – | 20–100℃ |
| Ni-Ti-Co | 53–55 | Balance | 1–3 | – | -30–30℃ |
| Ni-Ti-Cu | 47–50 | Balance | – | 5–9 | 40–70℃ |
Mechanical Properties
Austenitic Phase
| Property | Ni-Ti | Ni-Ti-Co | Ni-Ti-Cu |
|---|---|---|---|
| Tensile Strength (MPa) | 1175–1370 | 1370–1570 | 1175–1765 |
| Yield Strength (MPa) | ~196 | ~294 | 68–98 |
| Elongation (%) | ~50 | ~50 | ~20 |
| Modulus (MPa) | 7845–9800 | 9800–13730 | 0–4900 |
Martensitic Phase
| Property | Ni-Ti | Ni-Ti-Co | Ni-Ti-Cu |
|---|---|---|---|
| Tensile Strength (MPa) | 1075–1175 | 1275–1370 | 1175–1765 |
| Yield Strength (MPa) | 390–785 | 490–980 | 390–785 |
| Elongation (%) | ~20 | ~20 | ~20 |
| Modulus (MPa) | 17650–21575 | 25500–28440 | 19615–27460 |
Packaging Options
Spool (evenly wound, no breaks or tangling)
Fixed length (custom cut per request)
Coil
Other packaging methods available upon request
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