Weld Neck Flanges
- Seamless Integration: Butt-welded construction with a smooth transition from pipe to flange, ensuring long-lasting, reliable connections.
- Wide Size Range: Available in sizes 1/2″ to 72″, with pressure ratings ranging from 150lb to 2500lb.
- Versatile Applications: Used in high-pressure systems, including gas, water, and chemical pipelines, as well as in reactors and valves.
- Standard Compliance: Conforms to ANSI B16.5, JIS B2220, DIN, BS, GOST standards for consistency and global use.
Technical Specifications
| Parameter | Specification |
| Material Grade | Stainless Steel (F316/F316L) |
| Size Range | 1/2″ to 72″ |
| Pressure Rating | ANSI 150lb – 2500lb |
| Flange Type | Weld Neck Flange |
| Flange Face Type | RF (Raised Face), FF (Flat Face) |
| Machining Tolerance | ± 0.01mm |
| Surface Finish | Precision-machined |
| Heat Treatment | Available: Annealing, Normalizing, Quenching & Tempering, Hardening |
| Standard Compliance | ANSI B16.5, JIS B2220, DIN, BS, GOST |
| Bolt Hole Diameter | 11mm – 30mm |
| Flange Thickness | 12mm – 58mm |
| Connection Type | Butt Weld |
Customization & OEM Service
- Custom Sizes & Pressure Ratings: We provide customized sizes, pressure ratings, and face types as per your drawings.
- Material Flexibility: Available in various grades, including 304, 316L, Alloy Steel, and more.
- Heat Treatment Options: Tailor heat treatments for your specific application requirements (e.g., quenching, tempering, normalizing).
- Surface Finish & Machining: Available precision machining to meet specific surface finish requirements (e.g., Ra0.4).
- Non-Destructive Testing (NDT): Optional testing (e.g., ultrasonic, magnetic particle) to ensure flaw-free products.
Applications
- Oil & Gas Pipelines: Ensuring leak-proof connections in critical pipeline systems.
- Petrochemical Plants: Used in reactors, vessels, and critical piping systems.
- Power Generation Systems: Essential for connecting pipes in steam, gas, and nuclear plants.
- Marine Applications: Designed for high-stress environments in offshore and naval systems.
- Heavy Industry: Used in heat exchangers, boilers, and other industrial equipment that needs strong sealing.
Manufacturing Capabilities
Forging Facilities
- 6300T / 3150T / 2000T free hydraulic presses.
- 5T, 3T, 2T, 1T, 750kg, 560kg electro-hydraulic hammers.
Heating Treatment Facilities
- RTX-9 series trolley furnaces in multiple sizes (5.5–8 m chamber length).
- RJ-9-850KW vertical furnace with 15 m depth.
- RTX-12-350KW high-temperature trolley furnace.
Machining Facilities
- CNC machines (max 32-ton load).
- Heavy-duty lathes and vertical mills (up to 70 tons).
- Gantry milling machines, deep-hole boring machines, grinding and turning centers.
Testing & Quality Control
- Spectrum analysis for chemical composition.
- Ultrasonic, non-destructive, and metallographic testing.
- Mechanical property test machines for yield, tensile, hardness.
Production Process
- Raw Material Selection: Use first-grade ingot steel, inspect chemical composition.
- Forging: Heat to precise temperature, perform open die or die forging.
- Heat Treatment: Quenching, tempering, or normalizing to meet mechanical targets.
- Machining: CNC turning, boring, milling, grinding, and drilling to precision ±0.01 mm.
- Inspection: Each shaft tested via 100% ultrasonic, hardness, and tensile checks.
- Packaging & Delivery: Anti-corrosion coating, safe transport packaging, global logistics support.
Additional Value-added Services
- Quench-and-temper heat treating
- Rough and finish turning
- Ultrasonic and mechanical testing
- Dimensional inspection reports
- Customized design and programming support
Quality Assurance
- Each forging carries a test bar for mechanical testing.
- 100% ultrasonic and visual inspection before shipment.
- Hardness, tensile, and metallographic verification.
- Compliance with ASTM, DIN, GB, and EN standards.
Why Choose Boberry
Integrated Production
Complete forging-to-machining production line ensures precision and fast delivery.
Advanced Equipment
Heavy-duty forging presses and CNC systems handle large, complex mechanical component geometries.
Certified Assurance
Certified production with ISO9001, PED, SGS compliance and global OEM support.
Logistics & Delivery
Lead Time: 15–30 days (urgent) / 30–45 days (normal).
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.