Standards guide
NACE MR0175 Sour Service Pipe RFQ Guide
Buyer notes for sour service pipe and CRA clad pipe inquiries.
Practical Standard Review
Sour service pipe inquiries should define service environment, standard, grade, NACE requirement, hardness control, chemistry limits, testing, coating, and documentation package.
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 | Sour service pipe inquiries should define service environment, standard, grade, NACE requirement, hardness control, chemistry limits, testing, coating, and documentation package. |
|---|---|
| Confirm in RFQ | NACE reference, grade, service condition, hardness, HIC/SSC if required, MTC, and third party inspection |
| Risk to avoid | Do not call a pipe sour service suitable without project acceptance and test scope. |
| 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.