Stainless Steel Welded Pipe
Carbon Steel Welded Pipe
Stainless steel welded pipes are essential in industries requiring corrosion resistance, hygiene, and structural integrity.Low-cost and corrosion resistance material manufactured by stainless steel pipe. It’s applied in various industries for different parts. Not only is it durable and long-lasting with a perfect surface finish, but it also has excellent strength.Stainless steel welded pipes have rust resistance and excellent high-temperature resistance.
- Made by welding rolled stainless steel strips/plates into a cylindrical shape.
- Used in high-corrosion environments (chemicals, food, marine) and structural applications.
Material Composition
Chromium (Cr)
16–30%
(corrosion resistance).
Nickel (Ni)
8–25%
(austenitic stability).
Molybdenum (Mo)
2–6%
(enhances pitting resistance).
Carbon (C)
≤0.08%
(lower in "L" grades for welding).
Common Grades:
304
Excellent corrosion resistance, weldable.
304L
Excellent corrosion resistance, weldable.
316/316L
Superior chloride resistance.
321
High-temperature resistance.
Common Applications
- Food & Beverage: Sanitary tubing (Grade 304/316L).
- Oil & Gas: Corrosive fluid transport (Duplex 2205).
- Pharmaceutical: Hygienic piping (Orbital welded).
- Architecture: Handrails, façades (Grade 316).
- Chemical Plants: Acid-resistant pipelines (Grade 317L).
Types of Stainless Welded Pipes
- ERW (Electric Resistance Welded)
- Longitudinal SAW:Thick-walled, large-diameter (e.g., Duplex 2205).
- Spiral Welded:Large-diameter pipes (water transmission).
- Orbital Welded: High-purity (pharmaceutical, semiconductor).