Austenitic Stainless Steel International Grade Comparison Table

(Complete Global Cross‑Reference for 201–347)

AISI / ASTM	EN (W‑Nr)	JIS	GB	Description
201	1.4372	SUS201	12Cr17Mn6Ni5N	Mn series, economical austenitic
202	1.4373	SUS202	12Cr18Mn9Ni5N	Mn series, higher Mn/N
301	1.4310	SUS301	12Cr17Ni7	Cr‑Ni series, high strength
302	1.4319	SUS302	12Cr18Ni9	Cr‑Ni series, similar to 304 but higher C
303	1.4305	SUS303	12Cr18Ni8Pb	Free‑machining stainless steel
304	1.4301	SUS304	06Cr19Ni10	Standard 18‑8 stainless steel
304L	1.4307	SUS304L	022Cr19Ni10	Low‑carbon 18‑8, improved weldability
305	1.4303	SUS305	12Cr18Ni12	High Ni, excellent deep drawing
309	1.4828	SUS309	06Cr23Ni13	Heat‑resistant stainless steel
309S	1.4833	SUS309S	06Cr23Ni13	Low‑carbon 309, better weldability
310S	1.4845	SUS310S	06Cr25Ni20	High‑temperature alloy, oxidation resistant
316	1.4401	SUS316	06Cr17Ni12Mo2	Mo series, marine grade
316L	1.4404	SUS316L	022Cr17Ni12Mo2	Low‑carbon marine grade
316Ti	1.4571	SUS316Ti	06Cr17Ni12Mo2Ti	Stabilized Mo stainless steel
317L	1.4438	SUS317L	022Cr19Ni13Mo3	High Mo, improved corrosion resistance
321	1.4541	SUS321	06Cr18Ni11Ti	Ti‑stabilized, anti‑intergranular corrosion
330	1.4864	–	–	High‑temperature alloy, furnace applications
347	1.4550	SUS347	06Cr19Ni11Nb	Nb‑stabilized, high‑temperature corrosion resistance

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