Why do people use stainless steel products with drinking water systems?
In general, stainless steels are quite hard, tough, and corrosion resistant in comparison to some other materials used in drinking water applications. Despite its positive traits, however, stainless steel require much more effort, energy input, or treatment during processing to form into a functional shape. Comparatively, other alloys are sometimes selected because they can be machined or formed at much lower temperatures and speeds, using less energy input.
In general, stainless steels are quite hard, tough, and corrosion resistant in comparison to some other materials used in drinking water applications. • Are all stainless steel products compliant with NSF Standard 61? No. Only products that are certified to NSF/ANSI Standard 61 can be assumed to meet the requirements of NSF/ANSI Standard 61. Certification to NSF/ANSI Standard 61 includes product testing and production location auditing to ensure ongoing compliance with the health based requirements of NSF 61. This includes testing products on an annual basis, by exposing them to different formulated waters (typically at pH 5, pH 8 and pH 10) and testing for regulated metals such as antimony, arsenic, barium, cadmium, chromium (including chromium VI), copper, lead, mercury, selenium, thallium, and nickel, as well as any other inorganic and organic leachate concerns that may derive from cutting oils, lubricants, process aids, welding, machining, and other forming by-products. The certifi
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