Steel Forged Rings

Forged Steel Flange Rings are integral circular metallic components fabricated via precision forging, specifically engineered for secure connection and leak-proof sealing of industrial pipes/tubes. Key characteristics, specifications, and technical details are as follows: – Core Function : Facilitates rigid, pressure-resistant joining of two pipes/tubes, ensuring reliable containment of fluids (liquid/gas) in high-demand industrial systems. – Material Scope : – Carbon steel (e.g., A105, Q235B), stainless steel (304L, 316L, duplex 2205/2507), alloy steel (A182 F11/F22) – all forged to international material standards (ASTM, EN, JIS) for enhanced mechanical strength, corrosion resistance, and structural integrity. – Key Specifications : – Size Range: DN10 – DN3600 (customizable to non-standard dimensions); compatible with NPS (1/2″ – 144″) and JIS A-series (15A – 1500A) size systems. – Machining Configurations: Precision-machined sealing faces (RF, FF, RTJ), bolt hole patterns, and connection interfaces (weld-neck, slip-on, threaded) to match industry standard flanges. – Connection Methods : Welded (fillet weld, butt weld), bolted (with gaskets), or threaded – selected based on operating pressure (PN0.1 – PN420/Class 150 – 2500), temperature (-200℃ – 800℃), and maintenance requirements. – Core Advantages : – Forged microstructure eliminates porosity, shrinkage, and cracks, delivering superior fatigue resistance and pressure-bearing capacity vs. cast alternatives; – Precision machining ensures dimensional accuracy (tolerance ±0.02mm) and consistent sealing performance; – Corrosion-resistant (suitable for corrosive media: chemicals, seawater, acidic/alkaline fluids) and durable for long-term service in harsh environments. – Application Scope : Widely adopted in oil & gas (upstream exploration, midstream transmission), construction (municipal pipelines), automotive (engine cooling systems), chemical processing, power generation (nuclear/thermal), marine (shipbuilding), and heavy manufacturing industries.