254 SMO is a 6-Moly grade designed specifically for warm seawater and halide service where 316L and even 904L pit. The nitrogen addition contributes strongly to pitting resistance and raises strength above conventional austenitics. It remains fully austenitic, so unlike duplex it keeps its toughness and non-magnetic behaviour.
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
Rajgranth Metal & Alloys manufactures, stocks, supplies and exports 254 SMO Super Austenitic Stainless Steel in 6 product forms from Mumbai. 6% molybdenum super-austenitic with nitrogen. PREN above 42. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
254 SMO is a 6-Moly grade designed specifically for warm seawater and halide service where 316L and even 904L pit. The nitrogen addition contributes strongly to pitting resistance and raises strength above conventional austenitics. It remains fully austenitic, so unlike duplex it keeps its toughness and non-magnetic behaviour.
254 SMO Super Austenitic Stainless Steel is also designated UNS S31254, EN 1.4547, AISI 254 SMO, GB S31254 and Werkstoff X1CrNiMoCuN20-18-7.
Strengths: Resists pitting and crevice attack in warm seawater, Higher strength than 316L while remaining fully austenitic, Excellent resistance to chloride stress corrosion cracking and Non-magnetic and tough at cryogenic temperature. Limitations: Among the most expensive stainless options per tonne, Requires over-alloyed filler metal when welded, Difficult to machine and Availability is limited to held stock and mill order.
seawater cooling systems and heat exchangers, desalination plant, bleach and chlorine handling, flue gas cleaning and offshore process piping. Typical industries: marine & shipbuilding, oil & gas, chemical, power & energy and paper & pulp. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
Each combination is a page with its own dimensional range, finishes and standards.
Send the form, size, quantity and standard. We will confirm what is in stock and quote.
