To obtain grease and oil free surfaces, specialised chemical treatments are often required in the Process and Petrochemical industry. Our straight-length tubes are already cleaned to a very high level but, for certain industrial applications in order to prevent costly equipment downtime or failure, we recommend extra chemical treatment to receive contamination-free tubes. A common way is to “Ultra clean” for tube applications where oxygen is applied. The cleaned tubes will be packed with caps on the ends and supplied in polyethylene heat sealed bags. Any type of cleaning can be arranged from degreasing, pickling & passivation to Electro polishing, to remove all oil, grease, dirt, finger prints or any other organic residues to the requirements of ASTM G93 level A. After cleaning, a thorough inspection is carried out before a cleaning test certificate is issued.
Our seamless coiled tubes are even certified to the cleanliness requirements of ASTM A632 S3.1.2, thermocouple cleaned on the inside diameter defined as being free of all drawing compounds, carbon, dirt, dust, visible surface oxides, scale, and other contaminants. This is a verification test using a solvent-saturated cloth which is passed through the tubing. Unacceptable results lead to additional cleaning operations until tubing passes the thermocouple clean requirements. The ends are protected with polyethylene caps and packed on wooden drums.