ASME B16.9 A234 WP22 CL1 Seamless Alloy Fittings Delivered for Singapore Sour Service Line
Haihao Group has finished forming, back-wall thickness verification and documentation collation for a batch of ASME B16.9 A234 WP22 CL1 seamless butt weld fittings, ready for shipment to our Singapore petrochemical client. This package gathers long radius elbows, an eccentric reducer and a reducing tee, all built for sour operating conditions and held to strict back-arc wall thickness control during hot forming.
ASME B16.9 A234 WP22 CL1 seamless elbows eccentric reducer reducing tee NACE MR0175, Haihao Group shipment to Singapore
Product Specification Summary
| Description | Size | Schedule | Material | Standard | Special Requirement |
| 45° LR Elbow | 6″ | S80 (XS) | A234 WP22 CL1 | ASME B16.9 | Seamless, back arc thickness controlled, NACE MR0175 |
| 90° LR Elbow | 6″ | S80 (XS) | A234 WP22 CL1 | ASME B16.9 | Seamless, back arc thickness controlled, NACE MR0175 |
| 90° LR Elbow | 8″ | S80 (XS) | A234 WP22 CL1 | ASME B16.9 | Seamless, back arc thickness controlled, NACE MR0175 |
| Eccentric Reducer | 8″×6″ | S80×S80 | A234 WP22 CL1 | ASME B16.9 | Seamless, NACE MR0175 |
| Reducing Tee | 8″×4″ | S80×S80 | A234 WP22 CL1 | ASME B16.9 | Seamless, NACE MR0175 |
This ASME B16.9 A234 WP22 CL1 seamless fitting set uses chrome-moly alloy, a grade widely trusted for elevated temperature and H₂S-containing process piping. Unlike ordinary carbon steel fittings, every ASME B16.9 A234 WP22 CL1 seamless elbow in this batch went through targeted back-arc thickness inspection. The outer bend section of an elbow naturally thins during hot forming, so our production and QC teams monitor this zone closely to keep wall loss within the client’s acceptance window before release.
The order includes two sizes of long radius elbows: 6 inch and 8 inch, in both 45° and 90° configurations, all S80 / XS schedule. Complementing the elbows are an 8″×6″ eccentric reducer and an 8″×4″ reducing tee, also seamless and S80 wall. All components carry plain beveled butt weld ends and satisfy NACE MR0175 / MR0103 requirements, which is non-negotiable for sour hydrocarbon service across Singapore’s refinery and process facilities. Hardness control, material traceability and forming records are tied to each unique item number for site and third-party review.
An eccentric reducer of this grade is selected for horizontal pipe runs, helping eliminate low points where liquids can settle, while the reducing tee creates a reinforced branch take-off without extra reinforcing rings. Because these ASME B16.9 A234 WP22 CL1 seamless fittings are supplied as one consolidated kit, site piping crews can align spool fabrication sequences more smoothly. We avoid mixing standard and non-compliant alloy batches, and every test certificate is matched against material heat numbers listed on the packing list.
Haihao Group fabricates ASME B16.9 alloy seamless fittings including WP11, WP22 and WP91 grades for Singapore and Southeast Asia energy projects. We support back-arc thickness guarantees, NACE sour service compliance, custom NDT packages and full 3.1 traceability. If you are sourcing chrome-moly butt weld fittings for high-temperature or sour process lines, share your size, schedule and inspection requirements for a formal offer.