Finished Machined Flanges
- Non-Standard Forging Basis: Flanges are produced from non-standard forgings to meet special size, load and connection requirements.
- Large Size & Weight Capacity: Product range covers 5kg to 60000kg, up to 6.5m outside diameter and 13m length.
- Flexible Machining Capability: Flanges can be machined with grooves, holes, threads, and special profiles by turning, milling and CNC machining.
- Heavy-Industry Oriented: Designed for demanding applications in oil & gas, metallurgy, power generation, nuclear and marine industries.
Technical Specifications
| Item | Specification |
| Product Name | Finished Machined Flanges |
| Manufacturing Basis | Non-standard forgings and finished machining according to customer drawings |
| Machining Processes | Turning, milling, CNC machining, drilling, threading, and groove machining |
| Main Functions | Bolt holes, grooves, threads and precision sealing/bearing surfaces |
| Main Applications | Marine, Oil & Gas, Metallurgy, Power Generation, Nuclear, General industrial use |
| Production Size Basis | Fully according to the customer’s drawing |
| Weight Range | Approx. 5kg – 60000kg per flange |
| Maximum Dimensions | Up to 6.5m maximum outside diameter; up to 13m length (for shaft or ring-type components) |
| Material – Carbon Steel | Carbon steel grades as specified in drawings (e.g. typical structural and pressure steel grades) |
| Material – Stainless Steel | Austenitic and special stainless steels according to project requirement |
| Material – Alloys | Corrosion-resistant alloys, super alloys, die steel, structural alloy steel |
| Machining Accuracy | According to customer tolerance requirements and project standards |
Customization Options
- Custom flange dimensions: outer diameter, inner diameter, thickness, and hub dimensions according to drawings.
- Special drilling patterns: bolt circle diameters, number of bolts, hole diameters, and slot shapes.
- Groove and thread machining: sealing grooves, keyways, O-ring grooves, and internal and external threads.
- Design for specific standards or projects: matching ASME/ANSI, DIN/EN, GB, or customer-specific specifications.
- Optional machining combinations: turning + milling + drilling + boring + threading in one process flow.
Applications
- Oil & Gas industry: wellhead equipment, manifolds, gathering pipelines, and high-pressure process lines.
- Metallurgy: steel plant pipelines, high-temperature and high-pressure process connections.
- Power Generation: steam and gas turbine systems, boiler connections, cooling water, and auxiliary piping.
- Nuclear: safety-related and auxiliary piping systems that require high reliability and traceable materials.
- Marine & Offshore: ship pipelines, offshore platform process lines, and subsea-related equipment connections.
- General Industry: heavy machinery, process equipment, and pressure vessels that need custom, non-standard flange connections.