Standards guide
DX51D vs SGCC Galvanized Steel
Common differences in EN and JIS galvanized steel RFQs.
Practical Standard Review
DX51D and SGCC requests should be clarified by standard, coating, surface finish, base metal condition, tolerance, and whether the order is coil, sheet, strip, or slit coil.
Himount Steel reviews the ordered standard, grade, product form, dimension tolerance, inspection level, packing method, and shipment route before confirming price and lead time. Final supply always follows the buyer specification and accepted mill test certificate.
Key Ordering Points
| Main comparison | DX51D and SGCC requests should be clarified by standard, coating, surface finish, base metal condition, tolerance, and whether the order is coil, sheet, strip, or slit coil. |
|---|---|
| Confirm in RFQ | standard, coating mass, thickness, width, surface, spangle, passivation, and coil ID |
| Risk to avoid | A material label alone does not define the full coating and surface requirement. |
| Documentation | Confirm MTC type, heat number traceability, inspection record, and any buyer approval wording. |
| Next step | Send the project specification or previous PO so Himount Steel can check the supply route. |
Buyer Checks Before Quotation
- Use the project specification as the authority when grade names look similar.
- Confirm product form, size, tolerance, delivery condition, and inspection plan together.
- Ask for comparable references only as RFQ aids, not automatic substitutions.
- Review certificate wording before shipment if the project has strict acceptance rules.
Related Himount Pages
Prepare A Complete Steel Inquiry
Send the product standard, grade, size list, quantity, drawings, inspection scope, certificate request, packing method, and destination port. Himount Steel will review the technical route before quotation.