EP Stainless Steel Tubes

EP stainless steel tubes

Electropolished stainless tubes are used for ultra high purity applications. To obtain a perfect electropolished internal surface, the raw materials, bright annealed tubes, need to be meticulously selected to ensure the internal surface is suitable for electropolishing and packaged in a high cleanness room. Surface finish is Ra 0.1 µm and better.

Technical Data:

1) Description 

Electropolished stainless steel tubes / EP tubes 

2) Specification

ASTM A269/ASTM A270/ ASME A270-BPE / EN10216-5/ EN10305-1/ISO 1127

3) Typical Sizes

Imperial:1/4”, 3/8”, 1/2”, 5/8”, 3/4”, 1”, 1-1/4”,1-1/2”;

Metric: 6,8 10, 12,16,18,20,25,32,38;

Or made to orders.

4) Material grade

304/304L, 316/316L,

1.4301/1.4307,1.4404/1.4435

5) Features 

Bright and smooth surfaces

Ultra high purity

High precision tolerances 

Excellent internal surface roughness

Internal surface Ra < 0.1 µm or better

The purity of the deionized water used for the final cleaning process will meet the following purity levels:

Filtration: 0.1 micron absolute

Bacteria: Less than 6 colonies/100ml. 

TOC: Less than 25ppb

The nitrogen gas, utilized for purging and drying is procured to the following, minimum purity specifications:

Moisture: < 1 ppm

Oxygen: < 1 ppm

Total Hydrocarbons: < I ppm

Carbon Dioxide: < 1 ppm

6) Applications

Semiconductor

Medical tubing

Food&Beverages

Pharmaceutical

Ultra high tube heat exchangers

high purity gas and fluid piping systems