Short answer: Steel grade equivalents map the same material across standards (ASTM, EN, JIS, GB) so buyers can substitute safely; start from our Carbon Steel Supplier and Stainless Steel Supplier pages, and confirm chemistry with the Mill Test Certificate Guide.
At a Glance
Why Equivalents Matter
Global supply means the same steel appears under ASTM, EN, JIS and GB numbers. Equivalents let a buyer substitute a locally available grade without losing properties. The structural basis is in our Carbon Steel Supplier page and stainless in our Stainless Steel Supplier page.
Common Cross References
The table below lists a few widely used pairs. Always confirm chemistry and mechanicals against the mill certificate before substitution.
| Property | ASTM | EN |
|---|---|---|
| S355 | A572 Gr 50 | S355J2 |
| 304 | A240 304 | 1.4301 |
| 316L | A240 316L | 1.4404 |
Read the Certificate, Not Just the Name
Names can be close but not identical in impact or chemistry. Confirm with the method in our Quality Inspection Guide and the document detail in our Mill Test Certificate Guide.
Standards by Region
ASTM and AISI lead in North America, EN in Europe, JIS in Japan and GB in China; our Import Steel from China Guide covers GB cross checks for procurement.
Specifying and Sourcing
State both your local grade and the target standard; plan quantity with our MOQ and Lead Time Guide and price with our Price Quotation Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Frequently Asked Questions
The same material listed under a different standard system.
Close in yield; confirm chemistry and impact before substitution.
Yes – ASTM 304 and EN 1.4301 are the same austenitic grade.
No – verify against the mill test certificate.
Give both grades and the required standard.
Confirm Grade Equivalents with HXSCO
HXSCO cross references ASTM, EN, JIS and GB grades and confirms chemistry on the mill certificate. Send your grade and target standard for a quote.