Polished Stainless Steel Tubes Manufacturer & Supplier from China

We offer a comprehensive selection of products, including:

Electropolished Stainless Steel Tubes (EP Tubes)
Bright Annealed & Electropolished Tubes (BA + EP)
Mechanical Polished Tubes (MP)
ID Polished Stainless Steel Tubes
OD Polished Stainless Steel Tubes
High Purity Stainless Steel Tubes
Cleaned & Passivated Tubes
Semiconductor Grade Stainless Steel Tubes

Our products are used in a broad spectrum of industries:

1. Semiconductor Industry

Gas delivery systems
Process piping
Ultra high purity lines
Vacuum systems
Cleanroom equipment

2. Pharmaceutical Industry

CIP/SIP systems
Sterile process piping
Bioreactors
WFI systems
Clean fluid transfer

3. Biotechnology

High purity liquid systems
Fermentation equipment
Sterile transfer lines

4. Food & Beverage (High Purity)

Hygienic piping
Clean processing systems

We adopt standardized packaging practices to ensure product safety:

Individually capped
PE sleeve protection
Cleanroom double bag packing (optional)
Wooden case packing
Nitrogen protection (optional)

Technical

Itme	Specification
Outer Diameter	6 mm – 63.5 mm
Wall Thickness	0.5 mm – 5 mm
Length	Up to 6,000 mm
Surface Finish	Electropolished (EP)
Optional Finish	BA + EP / MP + EP
Roughness	Ra ≤ 0.8 μm / 0.6 μm / 0.4 μm / 0.25 μm
Standards	ASTM A269 / A213 / A270
Materials	304L / 316L (Other grades as per clients’ needs)
Cleanliness	Degreased & Cleanroom packed optional

Surface Roughness Options:

Finish	Roughness
MP	Ra ≤ 0.8 μm
EP	Ra ≤ 0.6 μm
High Purity EP	Ra ≤ 0.4 μm
Ultra High Purity EP	Ra ≤ 0.25 μm

Quality

Manufacturing Process:

Cold Drawing → Solution Annealing → Pickling → Mechanical Polishing →
Electropolishing → Ultrasonic Cleaning → Pure Water Rinse →
Drying → Cleanroom Packing

FAQ

1. What is electropolished stainless steel tubing?
Electropolished tubing is stainless steel tubing treated with an electrochemical process that removes surface impurities and reduces roughness, resulting in a smoother and cleaner surface.

2. What roughness can you provide?
We can supply Ra ≤ 0.8 μm, 0.6 μm, 0.4 μm, and 0.25 μm depending on application requirements.

3. Which material is most commonly used?
316L stainless steel is the most commonly used material for semiconductor and pharmaceutical applications.

4. Do you provide cleanroom packaging?
Yes, we provide double bag cleanroom packaging for high purity applications.

5. Is orbital welding supported?
Yes, our electropolished tubes are suitable for orbital welding systems.