Austenitic Stainless Steels

These grades offer excellent corrosion resistance, formability, and weldability for chemical, marine, and food industries.

Grade / Alloy	UNS/W.Nr.	Key Specs (Examples)	Typical Properties & Uses
304/304L	S30400 / 1.4301	EN 10088, AMS 5513	Versatile 18-8 Cr-Ni; atmospheric corrosion resistance; food processing, general fabrication.
316/316L	S31600 / 1.4401	EN 10088, AMS 5524	Mo-enhanced for chloride pitting resistance; marine, chemical streams, medical.
310/310S/310H	S31000/S31008/S31009 / 1.4845	EN 10088, AMS 5521	High-temp oxidation up to 2010°F; furnace parts, heat exchangers.
317L	S31703 / 1.4438	EN 10088, AMS 5653	Superior chloride/sulphurous resistance over 316; petrochemical, pulp/paper.
321/321H	S32100/S32109 / 1.4541	AMS 5645, EN 10088	Ti-stabilized for intergranular corrosion up to 1500°F; exhausts, aircraft.
347/347H	S34700/S34709 / 1.4550	AMS 5646, EN 10088	Nb-stabilized for creep resistance >1000°F; high-temp welded parts.
904L	N08904 / 1.4539	EN 10088	Super austenitic for acids (sulfuric/phosphoric); chemical processing, offshore.
301	S30100 / 1.4310	EN 10088	High cold-work strengthening; springs, fasteners, aerospace clips.

For full chemical compositions, mechanical properties, heat treatments, and certifications, download our data sheets (linked per grade). Additional grades available on request.