Super Duplex Steel F55 Flanges
- High Strength: F55 flanges provide twice the yield strength compared to stainless steel flanges.
- Wear Resistance: Offers superior wear resistance compared to stainless steel flanges.
- Long Service Life: Ideal for applications where extended service life is critical, reducing maintenance and replacement costs.
- Versatility: Available in a range of flange sizes and types to satisfy various industry demands.
- Customization: Offered in multiple grades (F51, F53, F55, F60) for tailored solutions.
Technical Specifications
| Specification | Details |
| Size | 2″-24″ |
| Thickness | STD, SCH40, SCH80, SCH160, SCHXX |
| Pressure Grade | Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
| Materials | F51, F53, F55, F60 series |
| Standards | ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 |
| Application | Petroleum, chemical, shipbuilding, metallurgy, electricity, and mechanical industries |
| Packaging | Seaworthy plywood cases, pallets, or as per customer request |
| Delivery Time | 15-35 days |
| Markets | Europe, US, North America, Asia |
Raw Materials
We produce and purchase raw materials strictly according to customer requirements, ensuring full compliance with project specifications, mechanical properties, and international standards.
Main steel grades we produce:
Steel Grade | Standards | Classification | Products |
1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4871 | EN 10222-5 | L | Forged flanges and Forged parts |
F304, F304L, F316, F316L, F321, F316T, F310, F904L | ASTM A182 | L | Forged flanges and Forged parts |
F51, F53, F55, F60 | ASTM A182 | L | Forged flanges and Forged parts |
LF2 | ASTM A350 | V | Forged flanges and Forged parts |
F11, F22 | ASTM A182 | V | Forged flanges and Forged parts |
A105 | ASTM A105 | N | Forged flanges and Forged parts |
CNC Machining Capabilities
We operate multiple machining lines and CNC centers engineered to deliver tight tolerances, superior surface finishes, and consistent quality for complex forged components.
Equipments and Quantities | ||
Item No. | Equipments | Quantities |
1 | Ramp CNC lathe | 6 |
2 | Normal lathe | 8 |
3 | Machining center | 4 |
4 | CNC lathe | 10 |
Inspection & Quality Control
To ensure the high quality of non-standard flanges, we are equipped with professional testing and inspection systems:
- 3D Measurement Equipment
- Ultrasonic Cleaning Machine
- Physical & Chemical Testing
- Dimensional Inspection
Packaging for Non-Standard Flanges
We provide protective packaging options according to customer needs:
- Anti-rust treatment
- Plastic film wrapping
- Wooden cases
- Wooden pallets
- Custom packaging available
Why Choose Boberry
Complete In-House Manufacturing
Integrated forging, heat treatment, machining, and inspection ensure stable quality, faster lead times, and full control over every production stage.
European-Market Proven Quality
Long-term supply to Germany, Austria, Switzerland, and Nordic countries demonstrates our ability to meet strict technical standards and customer expectations.
Custom Engineering Support
Tailor-made stainless-steel parts based on your drawings, with trial samples available to validate design, performance, and fit before full-scale production.