ASME B16.5 A105N & F11 Flanges Shipped to France Industrial Project
Industrial piping infrastructure projects in France require robust, fully traceable flanges built to ASME B16.5 specifications for stable long-term operation. Haihao Group has finished inspection and shipment of a mixed batch of carbon and alloy flanges for our French client, combining ASTM A105N slip on flanges, weld neck flanges, blind flanges, and ASTM A182 F11 weld neck flange for their on-site piping assembly.
Product Specification Table
| Product | Standard | Material | Size | Pressure Class | Facing | Neck Thickness |
|---|---|---|---|---|---|---|
| Weld Neck Flange | ASME B16.5 | ASTM A182 Gr. F11 | 4″ | Class 600 | RF | Sch.80 |
| Slip-On Flange | ASME B16.5 | ASTM A105N, Normalized | 1 1/2″ | Class 150 | RF | — |
| Slip-On Flange | ASME B16.5 | ASTM A105N, Normalized | 1″ | Class 300 | RF | — |
| Slip-On Flange | ASME B16.5 | ASTM A105N, Normalized | 3″ | Class 300 | RF | — |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 1″ | Class 300 | RF | Sch.40 |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 3″ | Class 300 | RF | Sch.40 |
| Slip-On Flange | ASME B16.5 | ASTM A105N, Normalized | 12″ | Class 300 | RF | — |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 1/2″ | Class 300 | RF | Sch.80 |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 1″ | Class 300 | RF | Sch.40 |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 1 1/2″ | Class 300 | RF | Sch.80 |
| Weld Neck Flange | ASME B16.5 | ASTM A105N, Normalized | 3/4″ | Class 300 | RF | Sch.80 |
| Blind Flange | ASME B16.5 | ASTM A105N, Normalized | 4″ | Class 300 | RF | — |
This delivery includes multiple types of ASME B16.5 A105N flange in varied sizes and pressure classes. All A105N flanges undergo normalizing heat treatment to achieve consistent mechanical properties, and feature raised face (RF) sealing surface to deliver reliable sealing performance under fluctuating operating pressure. Besides carbon steel items, one high-temperature alloy ASTM A182 F11 flange is included for high-temperature service section of the pipeline, marked 4 inch, Class 600 RF with Sch.80 neck thickness.
The scope covers slip on flanges and weld neck flanges ranging from 1/2 inch up to 12 inch, with pressure ratings of Class150 and Class300. Weld neck designs come with specified neck thickness (Sch.40 / Sch.80) to match the connected pipe wall thickness, reducing stress concentration at weld joints. Blind flange in 4 inch Class300 RF is also supplied for pipeline isolation. Every flange is manufactured strictly following ASME B16.5 dimensional standards, with full material test certificates available for client review.
Haihao Group maintains strict dimensional inspection and material verification before shipment for each ASME B16.5 A105N flange. We prepare complete documentation packages including MTC, heat treatment records and dimensional reports to meet European industrial project acceptance requirements. Whether customers need standard carbon steel flanges or alloy flanges for high-temperature piping, our production team can customize products according to ASME codes and project technical requirements.
We keep sufficient stock and flexible production schedules for ASTM A182 F11 flange and A105N flange series, supporting quick delivery for European oil, gas and power piping projects. If you need ASME B16.5 flanges with RF face, different pressure classes and material options, feel free to send your specifications for quotation.

