254 SMO®
254 SMO ® Super Austenitic Stainless Steel Bar UNS S31254. 254 SMO ® stainless steel bar, also known as UNS S31254, was originally developed for use in seawater and other aggressive chloride-bearing environments. This grade is considered a very high end austenitic stainless steel; mainly comprised of between 19.5% and 20.5% chromium, …