Stainless Unlimited (SUI) was incorporated in 1985 as a passivizator of stainless steel piping and components for the crash rescue and fire apparatus industry. SUI evolved into a fabricator that not only provided a superior finished product at unbeatable speeds, but also with complete engineering support throughout the project as well. It was from this that SUI's concept of full service and support matched with outstanding speed and quality was born. Today, Stainless Piping Specialists manufacturing division of SUI maintains a staff capable of giving you expert design and engineering support, diverse manufacturing capabilities to suit your products needs. In addition the wholesale distribution division of SUI, Alliance Metals Group, of the largest standing inventories of stainless steel raw materials on hand turn around times are better than any other stainless fabricator can offer. Add all of this together and you have a reputation for meeting and exceeding customer needs at competitive pricing that is well known throughout the Fire Apparatus, Water Treatment and custom stainless fabrication industries. Since SUI founding, its facilities have grown to over 100,000 square feet while continuously updating facilities and equipment to provide customers with the widest range of choices in manufacturing capabilities. Alliance Metals Group, the distribution division of SUI, offers a complete line of stainless steel fittings, including a full range of Threaded Nipples, Grooved Nipples, MSS-SP-114 150# Threaded Fittings, Plate & Backup Flanges, 150 & 300# ANSI Flanges, Butt-weld Fittings, 2 & 3 Pc Ball Valves, and Butt-Weld Specials. We do machining, cutting, or welding in house and can ship your modified fitting or flange in 24 hours.