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Nickel flat wire
Nickel strips are smelted from nickel and titanium in a nearly 50% ratio and possess a variety of excellent properties.
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Introduction:
Nickel flat wire is a type of metal wire with special properties, mainly composed of nickel (Ni) and titanium (Ti), formed into a flat cross-section through a specific process.
Surface Condition:
The surface condition of the wire is passivated, black and bright, bright, and lightly oxidized.
Features:
Shape memory: The preset shape can be restored by temperature changes.
Superelasticity: It automatically recovers after deformation under stress, with a large elastic range.
Corrosion resistance: The surface oxide film is corrosion-resistant and suitable for various environments.
Biocompatibility: Non-toxic, suitable for medical implantation scenarios.
Excellent mechanics: High strength, light weight, flat cross-section.Size and Tolerance Range
Thickness Range (mm) Width Range (mm) Thickness Tolerance (mm) Width Tolerance (mm) 0.025 - 0.05 0.4-2 ±0.002 ±0.01 0.05 - 0.3 0.4-2 ±0.005 ±0.01 0.3-1 0.4-5 ±0.01 ±0.05 1-2 0.4-5 ±0.02 ±0.05 Specific dimensions can be customized according to requirements
Chemical Composition
Element Category Element Typical Content Range Medical Grade Standard (e.g., ASTM F2063) Common Industrial Grade Range Effect on Performance Main Elements Nickel (Ni) 54.5 - 57.0 ≤57.0 54.5-58.0 Determines the phase transformation temperature (Ni content ↑➡ phase transformation temperature ↑), affecting the performance of superelasticity and shape memory effect. Titanium (Ti) 43.0 - 45.51 (remainder) ≥42.5 42.0-45.5 Forms the Ni-Ti matrix with Ni; excess easily generates Ti. 2 Ni brittle phase, reduces ductility; ensures the basis of corrosion resistance and biocompatibility. Impurity Elements Oxygen (O) ≤0.10 ≤0.05 ≤0.15 Forms oxides with Ti, increasing alloy brittleness and reducing plastic deformation ability; needs strict control (medical grade requirements are stricter). Nitrogen (N) ≤0.05 ≤0.03 ≤0.05 Forms interstitial solid solution, increasing hardness but reducing toughness; excess leads to room temperature brittleness. Carbon (C) ≤0.05 ≤0.03 ≤0.05 Forms carbides with Ti (such as TiC), affecting phase transformation uniformity and leading to unstable mechanical properties. Iron (Fe) ≤0.05 ≤0.03 ≤0.08 Replaces Ni in the lattice, changing the phase transformation temperature (Fe content ↑➡ phase transformation temperature ↓), and reducing corrosion resistance. Hydrogen (H) ≤0.005 ≤0.002 ≤0.005 Causes hydrogen embrittlement, affecting the fatigue life of the alloy; environmental humidity needs to be controlled during melting and processing. Trace Elements Molybdenum (Mo)/Niobium (Nb) (Added in some special grades) - 0.1 - 0.5 (improves corrosion resistance) Added to a few industrial-grade alloys to improve high-temperature corrosion resistance or adjust the phase transformation temperature; generally not added to medical grade. Comparison of Composition Differences in Different Application Scenarios
Nickel Content Range Focus of Impurity Control Standard Basis Medical Implantation (such as stents) 55.0 - 56.5 O≤0.03%, N≤0.02%, C ≤0.02%, Fe≤0.02% ASTMF206, ISO 5832-10 Oral orthodontic wire 55.5 - 57.0 O≤0.05%, N≤0.03%, with a focus on controlling Fe and C YY/T 0806-2010 (China Pharmaceutical Industry Standard) Industrial room firmware / spring 54.5 - 58.0 Allowable O≤0.15%, N≤0.05%, with greater focus on cost control Enterprise custom standard or GBA 20878-2007 Application scenarios
Industrial field
Wearable accessories field
Electronics technology
Nickel flat wire
Nickel strips are smelted from nickel and titanium in a nearly 50% ratio and possess a variety of excellent properties.
To find the right solution, please contact our technicians,Contact Us!
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