Standards guide
Z275 vs G90 Galvanized Coating
RFQ guide for galvanized coating mass references.
Practical Standard Review
Z275 and G90 are common galvanized coating references used in different standard systems. Buyers should confirm base standard, coating mass, surface, passivation, oiling, and final forming application.
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 | Z275 and G90 are common galvanized coating references used in different standard systems. Buyers should confirm base standard, coating mass, surface, passivation, oiling, and final forming application. |
|---|---|
| Confirm in RFQ | base standard, zinc coating reference, thickness, width, spangle, chromate/passivation, oiling, and packing |
| Risk to avoid | Do not compare coating names without confirming the standard system and test method. |
| 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.