Description
STAINLESS & CRA ALLOY PIPE / HIMOUNT
X65MS + Alloy 825 Metallurgical Clad Pipe For Sour Service
Metallurgical clad line pipe for sour and corrosive oil and gas service where a carbon steel line-pipe backing is combined with an Alloy 825 corrosion-resistant layer. Confirm API 5LD, backing grade, CRA alloy, bonding method, wall thicknesses, sour-service tests, and inspection plan before quotation.



Product Categories
RFQ Checklist
- Product form
- Standard and edition
- Grade / UNS
- OD or NPS
- WT / CRA layer
- Service medium
- Certificate and inspection
Manufacturing & Service
Product Overview
Metallurgical clad line pipe for sour and corrosive oil and gas service where a carbon steel line-pipe backing is combined with an Alloy 825 corrosion-resistant layer. Confirm API 5LD, backing grade, CRA alloy, bonding method, wall thicknesses, sour-service tests, and inspection plan before quotation.
Key Specifications
| Product family | Metallurgical clad line pipe with Alloy 825 CRA layer |
|---|---|
| Primary standard / project reference | API Spec 5LD / API 5L backing pipe / ASTM B423 Alloy 825 reference |
| Grade / material reference | X65MS + UNS N08825 / Alloy 825 reference |
| Manufacturing route | Metallurgical clad pipe with Alloy 825 CRA layer |
| Supply range | Backing pipe grade, OD, backing wall thickness, CRA thickness, length, end finish, coating, and inspection plan by API 5LD or project specification. |
| Order details to confirm | Product form, backing material where applicable, CRA layer, OD/NPS, wall thickness, CRA thickness, length, surface condition, service medium, test scope, certificate level, and destination port. |
International Model Search Index
Common international standard, grade, size and RFQ phrases buyers use when searching or preparing a steel enquiry.
Index terms are for RFQ routing and search visibility. Final supply must follow the ordered standard edition, project specification, drawing, MTC and inspection plan.
Common International Models And Size Keywords
| Common standards | API 5LD, API 5L base pipe, NACE MR0175 / ISO 15156, project CRA specification |
|---|---|
| Common grade families | X52/X60/X65MS base pipe, Alloy 825 / UNS N08825 CRA layer, 316L/625/825 by project |
| Common size keywords | Metallurgical clad pipe, CRA layer thickness, sour service, HIC/SSC, bond test, 3LPE/FBE |
| RFQ confirmation | Base grade, CRA grade/thickness, bond method, service medium, H2S/CO2, NDT and ITP |
Common RFQ Model Search Keywords
| Grade model examples | X52MS, X60MS, X65MS base pipe, Alloy 825 / UNS N08825 CRA layer, Alloy 625, 316L clad pipe by project |
|---|---|
| Size / order examples | CRA clad pipe, metallurgical bonded pipe, sour service pipe, HIC/SSC tested, 3LPE coated, CRA layer thickness by order |
| Buyer search phrases | X65MS Alloy 825 clad pipe; CRA clad line pipe supplier; API 5LD metallurgical clad pipe |
International Standard Reference
| Reference | Buyer-facing use |
|---|---|
| API Spec 5LD | CRA clad or lined steel line pipe reference for pipeline transportation systems. |
| API 5L backing pipe | Line-pipe backing reference; PSL, grade, and sour-service suffix must be confirmed. |
| UNS N08825 / Alloy 825 | Nickel alloy CRA reference, often ordered with ASTM B423/B424/B705/B704 forms depending on product form. |
Common Export Specification Examples
| Standard family | Common grade / model | Typical export wording | Search phrase examples |
|---|---|---|---|
| API 5LD / API 5L base | X52MS, X60MS, X65MS | CRA clad line pipe; PSL and base-pipe route by project data sheet | X65MS Alloy 825 clad pipe, CRA clad line pipe |
| CRA layer grades | Alloy 825 / UNS N08825, Alloy 625, 316L | Metallurgical bond; CRA thickness by project; bond and shear test | UNS N08825 clad pipe, Alloy 625 clad pipe |
| Sour service references | NACE MR0175 / ISO 15156 | HIC/SSC, H2S/CO2, chloride and temperature conditions must be confirmed | sour service CRA clad pipe supplier |
Comparable International References
| Reference family | How buyers use it | Quotation note |
|---|---|---|
| API Spec 5LD / API Spec 5L base-pipe reference | CRA clad or lined line pipe reference for corrosion-resistant pipeline transportation service. | Confirm base pipe grade, CRA layer, manufacturing route, bond method, PSL, and project data sheet. |
| Alloy 825 / UNS N08825 CRA layer | Nickel-iron-chromium corrosion-resistant alloy reference used for sour or corrosive service layers. | CRA chemistry, thickness, weld overlay/clad method, and testing must be specified. |
| NACE MR0175 / ISO 15156 sour service selection | Material selection reference for H2S-containing oil and gas environments. | Service medium, pH, chlorides, H2S/CO2, temperature, and project approval control suitability. |
Applications
- Sour oil and gas pipelines
- H2S / CO2 containing service
- Offshore and onshore flowlines
- Corrosive production systems
- Pipeline sections requiring CRA protection
Testing And Documentation
- MTC for backing and CRA layer
- Bond integrity inspection as specified
- UT/RT/NDT by project plan
- HIC/SSC testing when required
- PMI for CRA layer
- NACE MR0175 / ISO 15156 review when sour service is specified
Packing And Delivery
Stainless, duplex, CRA, and clad products can be capped, wrapped, strapped, boxed, protected with end covers, separated from carbon steel contamination, and seaworthy packed according to product form and shipment plan.
Inquiry Information
Please send product form, standard, grade or UNS, OD/NPS, wall thickness, CRA layer thickness where applicable, length, quantity, service medium, destination port, and certificate or inspection requirements.
