Forged flanged pipe fittings are formed by an integral forging process. The raw materials undergo high-temperature forging, upsetting, heat treatment, and precision machining, resulting in a dense internal metal structure in which defects such as porosity, lamination, and looseness are eliminated. Both ends of the product integrate a flange structure, achieving sealed pipeline connections through bolts and gaskets, making disassembly, assembly, and maintenance convenient. The series covers forged flanges, elbows, tees, reducers, pipe caps, and branch outlets, and complies with standards such as GB/T, HG/T, SH/T, ASME B16.5, and ASME B16.9. Nominal diameters are mainly DN15-DN600, and extra-large diameters can be customized up to DN2000. Pressure coverage includes national standard PN40~PN160 and American standard Class150~Class2500, while threaded forgings support 3000#, 6000#, and 9000# pound ratings. Materials include A105 carbon steel, 16Mn, 304/316L stainless steel, chrome-molybdenum heat-resistant steel, duplex steel, etc., suitable for the conveyance of steam, high-pressure oil and gas, and corrosive media.
Overview
Forged flange pipe fittings are high-pressure pipeline matching fittings that we process using an integral forging process. The raw materials undergo high-temperature forging, upsetting, heat treatment, and precision machining to take shape; the metal's internal grains are dense, and defects such as porosity, laminations, and looseness are eliminated. They have the performance characteristics of high-temperature resistance, high-pressure resistance, and fatigue resistance, and belong to pressure pipeline special equipment accessories. Both ends of the product are integrated with a flange structure, relying on bolts and gaskets to achieve sealed pipeline connections, making disassembly, assembly, and maintenance convenient. The series covers forged flanges, forged elbows, forged tees, forged reducers, forged pipe caps, and branch outlets, and implements standards such as GB/T, HG/T, SH/T, ASME B16.5, and ASME B16.9. Nominal diameters are mainly DN15-DN600, and extra-large diameters can be customized up to DN2000.
Key Features
Forged flange pipe fittings adopt an integrated forging and upsetting molding process, resulting in a dense and uniform metal structure that eliminates the common defects of ordinary pipe fittings such as looseness, laminations, and porosity, and their pressure-bearing strength is higher than that of ordinary stamped pipe fittings. The products are resistant to high temperature, high pressure, and creep, and can operate stably for long periods under high-temperature conditions above 500°C and Class2500 ultra-high pressure working conditions. Both ends are integrated with a flange structure, with bolt-plus-gasket sealed connections, making on-site disassembly, assembly, and maintenance convenient. Material coverage includes A105 carbon steel, 16Mn, 304/316L stainless steel, chrome-molybdenum heat-resistant steel, duplex steel, etc., suitable for the transport of steam, high-pressure oil and gas, and corrosive media. The products implement national and American high-pressure standards, and can meet the needs of special equipment inspection applications, domestic and international engineering, and foreign trade procurement.
Applications
Forged flange pipe fittings are suitable for industrial scenarios involving medium and high pressure, high temperature, corrosion, and continuous operation, and are not suitable for ordinary low-pressure civil pipeline networks. Typical applications include main steam, main feedwater, and high-temperature return water high-pressure pipeline networks in thermal power plants; high-pressure synthesis, hydrogenation, rectification, and high-pressure reaction process pipelines in petrochemicals; and high-pressure gathering and transportation, high-pressure water injection, and high-pressure oil transmission pipeline systems in oil and gas fields. In the energy and thermal field, they can be used for high-temperature and high-pressure thermal pipeline networks in thermal power plants, boiler-matched high-pressure pipelines, and pressure vessel connection ports. In the fields of fine chemicals, pharmaceuticals, and new energy, they are suitable for high-temperature corrosion, high-purity media, and sealed high-pressure transport pipelines. In special equipment scenarios, they are used for pressure pipelines, boilers, pressure vessels, high-pressure valve matching connections, as well as high-pressure equipment interface sealing and conversion. They are also suitable for upgrade and renovation of old high-pressure pipeline networks and high-pressure pipeline hazard remediation projects.
Specifications
The product series includes forged flanges, forged elbows, forged tees, forged reducers, forged pipe caps, and branch outlets. Nominal diameters are mainly DN15-DN600, and extra-large diameters can be customized up to DN2000. Pressure coverage includes national standard PN40~PN160 and American standard Class150~Class2500; threaded forgings support 3000#, 6000#, and 9000# pound ratings. Materials include A105 carbon steel, 16Mn, 304/316L stainless steel, chrome-molybdenum heat-resistant steel, duplex steel, etc. They implement standards such as GB/T, HG/T, SH/T, ASME B16.5, and ASME B16.9. Specific specifications, pressure ratings, materials, and sealing face forms can be confirmed according to project requirements. You are welcome to contact us and provide drawings or technical agreements for verification.
Procurement & Delivery
Forged flange pipe fittings adopt a flexible minimum order model. Conventional national standard and American standard in-stock forged specifications support a minimum order of 1 piece, including PN40/PN64 conventional high-pressure, Class150/300 commonly used pound ratings, and carbon steel and 304 stainless steel standard forgings, which can meet the needs of power plant and chemical emergency repair replacement parts, sample submission for inspection, bulk centralized procurement, and large foreign trade orders. Delivery times implement a three-tier system of quick shipment from stock, conventional mass production, and high-pressure non-standard customization. The warehouse regularly stocks carbon steel and 304 stainless steel conventional high-pressure forgings; orders for mainstream specifications of PN40-PN64 and Class150-Class300 are shipped within 24-48 hours after confirmation. For non-standard customization and extra-large diameter products, please contact us to confirm delivery times. Packaging uses industrial thickened protection, with key protection for sealing faces, flange planes, and threaded threads. Carbon steel forgings are sprayed with anti-rust oil and wrapped in anti-rust paper; stainless steel and alloy steel forgings receive isolation and anti-contamination protection; flange sealing faces and threaded ports are fitted with plastic protective caps. Small and medium diameters are individually wrapped in bubble film and reinforced with hard cardboard boxes; large-diameter heavy pieces use solid wood pallets for fixation, steel strapping for reinforcement, and stretch film for full wrapping. The outer packaging is marked with forging grade, material grade, pressure pound rating, diameter specification, heat number, and inspection number. For foreign trade orders, fumigated solid wood pallets, customized English shipping marks, and independent quality inspection lists can be provided.
Service & Support
We provide high-pressure industrial-grade warranty and after-sales service for forged flange pipe fittings. All forged finished products undergo 100% flaw detection, pressure testing, and spectral re-inspection, and genuine products enjoy an 18-month warranty service. During the warranty period, for material non-compliance, cracking, leakage, structural defects, or forging quality problems not caused by human overpressure or improper use, we provide free replacement, free reissue, and cover round-trip logistics costs. Before sale, we provide free services for high-pressure working condition selection, pressure rating matching, material adaptation, high-temperature anti-corrosion solutions, drawing verification, and process parameter checking; during sale, we track the entire process of forging, heat treatment, flaw detection, and shipment in real time; after sale, we provide high-pressure pipeline installation guidance, high-pressure pipeline network operation and maintenance technical briefings, troubleshooting, and working condition optimization solutions. For large power and petrochemical projects, full-process technical on-site support can be provided. We support seven-day no-reason return and exchange for standard unused products, 2-hour rapid after-sales response, and lifetime free technical consultation for high-pressure pipe fittings.
FAQ
What is the difference between forged pipe fittings and ordinary stamped pipe fittings?
Forged pipe fittings undergo high-temperature forging, upsetting, and heat treatment, resulting in dense metal grains, no porosity or laminations, high pressure and high temperature resistance, and high fatigue strength, and are specifically used for high-pressure and high-temperature industrial pipelines. Ordinary stamped pipe fittings have lower strength and are only suitable for low-pressure civil and municipal pipe networks; under high-pressure working conditions, they must never be used as a substitute for forgings.
Can forged pipe fittings be used for main steam high-pressure pipelines?
Yes. Forged flanged pipe fittings can operate stably over the long term under high-temperature working conditions above 500°C and Class2500 ultra-high pressure, and are suitable for main steam, main feedwater, and high-temperature return water high-pressure pipe networks in thermal power plants. The specific selection needs to be confirmed according to design pressure, temperature, medium, and diameter. You are welcome to contact us to provide working condition parameters so that we can assist with matching.
What materials and pressure ratings does the product support?
Materials include A105 carbon steel, 16Mn, 304/316L stainless steel, chrome-molybdenum heat-resistant steel, duplex steel, etc. Pressure coverage includes national standard PN40~PN160 and American standard Class150~Class2500. Threaded forgings support 3000#, 6000#, and 9000# pound ratings. Special materials and ultra-high pressure ratings can be customized according to project requirements; please contact us for confirmation.
What are the minimum order quantity and delivery time?
Conventional national standard and American standard in-stock forging specifications support ordering from 1 piece, including PN40/PN64 conventional high pressure, Class150/300 commonly used pound ratings, and standard forgings in carbon steel and 304 stainless steel. In-stock orders from the warehouse are shipped within 24-48 hours after confirmation. For non-standard customization and extra-large diameter products, please contact us to confirm the delivery time.
Do you support non-standard customization and export packaging for foreign trade?
We support one-on-one forging production according to drawings and technical agreements, and can customize ultra-large diameter, ultra-thick wall thickness, special reducing ratios, special-shaped structures, and PN160, Class2500, 3000#-9000# threaded forgings. For foreign trade orders, we can provide fumigated solid wood pallets, customized English shipping marks, and independent quality inspection lists. You are welcome to contact us to confirm the specific customization plan.
