Round flange

Round Flange - Forged Pipe Connection Solution by LINHUI TITANIUM

LINHUI TITANIUM manufactures high-performance Round flange connectors engineered for demanding industrial piping systems. Our forged flanges comply with ANSI, BS, DIN, and JIS standards, available in nominal diameters from 1/2"–72" (DN15mm–DN1800mm). These circular mechanical connectors feature precision-machined bolt holes and central bores, ensuring hermetic sealing under high-pressure conditions up to 2500 PSI.

Each item experiences controlled manufacturing forms that upgrade grain structure judgment, conveying prevalent malleable quality and weakness resistance. Surface medicines incorporate rust-proof oil coating, dark portray, or custom wraps up per your determinations. With 200+ tons of prepared stock and 3–7 day conveyance for standard sizes, we back quick extend sending over chemical, petroleum, electric control, water conservancy, pharmaceutical, kettle, and shipbuilding industries.

Key Features & Benefits

Our manufactured spines dispose of weld-related frail focuses common in created options. The manufacturing method compresses metal grain stream, expanding affect resistance by 40% compared to cast ribs. This auxiliary advantage avoids stretch splitting in warm cycling environments.

Bolt gap situating precision comes to ±0.5mm resistance, guaranteeing gasket compression consistency. This accuracy diminishes criminal emanation dangers in VOC-handling frameworks. The raised confront (RF) or level confront (FF) arrangements oblige different gasket materials for application-specific fixing requirements.

Modular plan empowers toolless dismantling for assessment and support without cutting channels. This include decreases downtime costs in pharmaceutical clean-in-place (CIP) frameworks by 60%.

Product Information

Chemical Composition

For carbon steel ASTM A105 flanges, typical composition includes 0.35% max carbon, 0.60–1.05% manganese, 0.035% max phosphorus, and 0.040% max sulfur. This balance provides weldability without preheating requirements.

Stainless steel 316L flanges contain 16–18% chromium, 10–14% nickel, and 2–3% molybdenum for chloride-resistant corrosion protection in marine applications. Titanium Grade 2 options offer 99.2% pure titanium with 0.25% oxygen for aggressive acid service.

Manufacturing Process

Raw material undergoes ultrasonic inspection before forging. Billets are heated to 1200°C in controlled-atmosphere furnaces to prevent surface oxidation. Hydraulic presses apply 8000+ tons of force, shaping the Round flange profile while refining grain structure.

Post-forging heat treatment normalizes internal stresses. CNC machining achieves face flatness within 0.08mm and concentricity tolerance of 0.1mm. Final boring operations size the central aperture to match pipe schedules precisely.

Quality Inspection

Each spine gets 100% visual examination for surface absconds per ASME B16.5 prerequisites. Dimensional confirmation employments CMM hardware with ±0.02mm precision. Hydrostatic testing at 1.5× plan weight approves weight boundary integrity.

Material test certificates (MTC) per EN 10204 3.1 record chemical composition through spectrographic examination. Third-party review by SGS, BV, or TÜV is accessible upon ask at no additional taken a toll for orders over 10 tons.

Applications

Chemical Processing: Corrosive liquid dealing with in reactors and refining columns

Petroleum Refineries: High-temperature rough oil and gas transmission lines

Power Generation: Boiler feedwater frameworks and steam condensate return

Water Treatment: Municipal water dissemination and desalination plants

Pharmaceuticals: Sterile prepare channeling with clean clamp compatibility

Marine Engineering: Seawater cooling frameworks and counterweight pipe networks

Shipbuilding: Fuel exchange lines and water powered liquid circuits

Export Markets

We've conveyed over 300,000 tons of spines to 60+ nations. Essential markets incorporate North America (USA, Canada, Mexico), Center East (UAE, Saudi Arabia, Qatar), Southeast Asia (Thailand, Vietnam, Indonesia), and CIS districts (Russia, Kazakhstan). Our items meet API 6A details for seaward stages in the Inlet of Mexico and NORSOK M-650 guidelines for North Ocean installations.

Why Choose Us?

Direct Process Pricing: Factory-direct supply kills middle person markups, lessening costs by 15–25%.

Rapid Response: Quotations inside 4 hours; specialized drawings looked into in 24 hours.

Flexible MOQ: Trial orders begin at 100 kg; stock things transport inside 3 days.

Full Traceability: Heat number following with total MTC documentation per EN 10204 3.2.

Engineering Support: In-house metallurgists help with fabric determination and custom plans.

Packaging & Shipping

Flanges are wrapped in VCI anti-corrosion paper and secured in plywood cases with steel strapping. Larger sizes (DN600+) are individually crated with shock-absorbing foam. Cases are labeled per ISPM 15 heat-treatment standards for international phytosanitary compliance.

Standard sea freight to Los Angeles averages 18–22 days; air freight via DHL/FedEx reaches European destinations in 5–7 days. We arrange CIF, FOB, or EXW terms based on your logistics preferences.

FAQ

Q: What's the difference between forged and cast flanges?

A: Forged flanges have directional grain flow that increases mechanical strength by 35–40%. Cast flanges may contain microporosity that reduces pressure ratings.

Q: Can you provide NACE MR0175 compliant flanges?

A: Yes, we supply sour service flanges with controlled hardness below HRC 22 for H₂S environments per NACE requirements.

Q: Do you offer customized bolt hole patterns?

A: Absolutely. Provide your drilling template, and we'll manufacture the product configurations matching your existing equipment within 25–40 days.

Q: What gasket materials do you recommend?

A: For steam service, use spiral wound gaskets; for chemicals, PTFE or graphite-filled types work best. Our engineers can advise based on temperature and media.

Request a Quote

Ready to enhance your piping system reliability with precision-forged Round flange components? Contact our technical sales team at linhui@lhtitanium.com with your specifications.