Dec 12, 2025 Leave a message

Nailok N06625 6.35 X 0.89mm Seamless Tubing Bright Annealing Electro-Polished Inconel 625 Alloy Seamless Pipe

1. What is the material composition of the tubing?

 

Answer:
The tubing is made of Inconel 625, a nickel-chromium-molybdenum alloy known for its excellent corrosion resistance, high strength, and stability at elevated temperatures. It contains approximately 58% Nickel, 20–23% Chromium, 8–10% Molybdenum, with small amounts of iron, niobium, and other trace elements.

 


2. What are the dimensions and wall thickness of this tubing?

 

Answer:
The tubing has an outer diameter of 6.35 mm and a wall thickness of 0.89 mm, making it suitable for precision applications where small-diameter, thin-walled seamless tubing is required.

 


3. What does "bright annealing" mean for this tubing?

 

Answer:
Bright annealing is a heat treatment process performed in a controlled, oxygen-free atmosphere to soften the metal and improve ductility, while maintaining a smooth, shiny surface without oxidation or scaling. This ensures excellent corrosion resistance and surface finish.

 


4. Why is electro-polishing applied to this tubing?

 

Answer:
Electro-polishing removes a thin layer of surface material to produce a smooth, reflective, and contamination-free surface. This enhances corrosion resistance, reduces surface roughness, and makes it suitable for chemical, pharmaceutical, or high-purity applications.

 


5. What applications is this Inconel 625 tubing suitable for?

 

Answer:
Due to its combination of high strength, corrosion resistance, and thermal stability, this tubing is commonly used in:

Chemical processing equipment

Aerospace and marine components

High-temperature heat exchangers

Oil and gas equipment

Pharmaceutical and food-grade systems requiring high-purity tubing

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