AISI 304, SUS304, EN 1.4301 Equivalent Stainless Steel
This page focuses on the most searched 304 stainless steel equivalent names used in international purchasing: AISI 304, ASTM 304, UNS S30400, EN 1.4301, DIN X5CrNi18-10, JIS SUS304, and GB 06Cr19Ni10. It is designed for buyers who receive drawings or inquiries in different standards and need a fast way to describe the same material clearly.
Quick answer
In many purchasing cases, 304 stainless steel is cross-referenced as UNS S30400, EN 1.4301 / X5CrNi18-10, JIS SUS304, and GB 06Cr19Ni10. These names are commonly treated as equivalent references, but they are not a blank approval for substitution. Always confirm the requested product standard, dimensions, finish, mechanical properties, and mill test certificate.
304 stainless steel equivalent table
| Market wording | Common designation | Where buyers use it | Procurement note |
|---|---|---|---|
| AISI / ASTM | 304 | North America and global RFQs | Usually requested as 304 stainless steel sheet, coil, plate, pipe, tube, or bar |
| UNS | S30400 | Engineering specifications and certificates | Useful when the drawing is standards-driven |
| EN / DIN | 1.4301 / X5CrNi18-10 | Europe, Middle East, and international projects using EN standards | Check product standard such as EN 10088 where required |
| JIS | SUS304 | Japan, Southeast Asia, and many Asian procurement searches | Often searched as SUS304 sheet, SUS304 pipe, or SUS304 coil |
| GB / China | 06Cr19Ni10 | China supply chain and export documents | Commonly appears on Chinese mill certificates and quotations |
Local search names to include in RFQs
For multilingual SEO and real procurement, the grade name should be connected with the local product word. Spanish buyers may search acero inoxidable 304, acero inox 304, chapa inoxidable 304, and bobina inoxidable 304. Portuguese buyers may search aço inox 304, chapa inox 304, bobina inox 304, and tubo inox 304. Vietnamese buyers often search inox 304, tấm inox 304, cuộn inox 304, and ống inox 304.
When 304 is a good fit
- Indoor equipment and general fabrication.
- Food service equipment where chloride cleaners are controlled.
- Architectural trim away from severe coastal exposure.
- Kitchen equipment, tanks, handrails, panels, and general sheet metal work.
When to check 316 instead
Choose 316 or 316L when chloride exposure is a real risk: coastal outdoor projects, marine hardware, salt spray, chemical cleaning, brine, pool environments, or de-icing salts. The molybdenum in 316 gives better resistance to pitting and crevice corrosion than 304.
How to request a quote
Send the exact grade wording from the drawing, equivalent names if available, product form, thickness or outside diameter, finish, quantity, destination country, and application environment. If the drawing says SUS304 but your local team asks for EN 1.4301, include both names in the inquiry.
Related resources
- Stainless Steel Grade Equivalent Chart
- 304 Stainless Steel Grade Guide
- 304 vs 316 Stainless Steel
- Spanish grade equivalence page
- Portuguese grade equivalence page
- Vietnamese grade equivalence page
FAQ
Is SUS304 the same as 304 stainless steel?
SUS304 is commonly cross-referenced with AISI 304 / UNS S30400, but the final purchase should confirm the applicable standard and certificate.
What is EN 1.4301 equivalent to?
EN 1.4301 / X5CrNi18-10 is commonly compared with 304 stainless steel.
Can 304 replace 316?
Only when the service environment does not require 316 chloride resistance. For coastal, marine, salt, or chemical exposure, review 316 or 316L.