All Penn Machine Nickel and Stainless Steel Alloys are processed as Chloride and Halogen Contamination Free Products as defined as materials not coming in contact with or being processed with leachable chlorides and/or halogens in manufacturing, cleaning, or packaging of our piping products in nickel and stainless steel alloys. Chlorides and Halogens are detrimental to Stainless Steel and Nickel Alloys and may result in pitting or premature corrosion of these types of metals if contaminated. We take every precaution to process your nickel and stainless steel alloys products free from this contamination.