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{"title":"ASTM 304 304L 300LB Ss Raised Face Threaded Stainless Steel Flanges","imgUrl":"https:\/\/img.chinax.com\/nimg\/15\/c8\/59ad0711a956a42eaf716558260e-200x200-1\/astm_304_304l_300lb_ss_raised_face_threaded_stainless_steel_flanges.jpg","attrs":{"Brand Name":"Yuhao","Model Number":"Silp on flanges","Certification":"ISO, API, BV, CE ...","Place of Origin":"China"}}
{"title":"Hydrostatic Test Certified Forged Stainless Steel Flanges for Seamless","imgUrl":"https:\/\/img.chinax.com\/nimg\/b9\/6b\/46b0904312a81c2c087d5ff7a658-200x200-1\/hydrostatic_test_certified_forged_stainless_steel_flanges_for_seamless_integration_in_fluid_systems.jpg","attrs":{"Connection Type":"Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint","Facetype":"Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)","Certification":"ISO 9001","Price":"FOB\/CIF Price, Subject To Size, Material, Pressure Class; Quotation Upon Drawings\/specifications"}}
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{"title":"Antirust Oil Coated Stainless Steel Flanges 100% Test Before Delivery with DN15","imgUrl":"https:\/\/img.chinax.com\/nimg\/82\/18\/f3034a7e9d5c328a602025b52540-200x200-1\/antirust_oil_coated_stainless_steel_flanges_100_25_test_before_delivery_with_dn15_dn1800_dimensions.jpg","attrs":{"Surface Treatment":"Antirust Oil","Weight":"Varies By Size And Type","Test":"100% Test Before Delivery","Payment Terms":"EXW\/FOB\/CIF\/CFR Acceptable"}}
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Our 304/316 Stainless Steel Weld Neck Flange (WN Flange) is a high-performance, heavy-duty connecting component designed for high-pressure, high-temperature industrial piping systems. Distinguished by its long, tapered neck that integrates seamlessly with the pipe, it forms a strong, permanent joint through butt welding, ensuring exceptional structural integrity and leak-proof performance. Crafted from premium 304 and 316 stainless steel, this flange delivers superior corrosion resistance, fatigue strength, and pressure-bearing capacity, making it the preferred choice for critical applications where reliability and safety are paramount.
Unlike slip-on or threaded flanges, the weld neck flange’s tapered neck distributes stress evenly across the connection, reducing stress concentration and minimizing the risk of leakage in harsh operating conditions. Its butt-weld design creates a smooth, continuous flow path, eliminating turbulence and pressure drops, which is essential for high-pressure pipelines in oil, gas, and chemical industries. Suitable for both low-to-high pressure and high-temperature environments, it balances durability and performance for the most demanding industrial scenarios.
Key Features & Advantages
Dual-Grade Corrosion Resistance:304 stainless steel offers excellent general corrosion resistance for standard high-pressure applications, suitable for water, air, and non-corrosive media. 316 stainless steel, enhanced with molybdenum, provides superior resistance to chlorides, acids, and marine environments, effectively preventing pitting, crevice corrosion, and stress cracking in harsh industrial settings.
Global Standard Compliance:Fully adheres to international standards including ASTM A182, ANSI B16.5, EN 1092-1, JIS B 2220, and DIN, ensuring interchangeability with global piping systems and equipment, making it ideal for domestic and overseas critical projects.
High Pressure & Temperature Resistance:The tapered neck design and butt-weld connection enable the flange to withstand high pressures (Class 150-Class 2500 / PN6-PN100) and high temperatures (up to 800°C), making it suitable for critical applications in oil, gas, and chemical processing.
Exceptional Structural Integrity:The integrated neck design distributes stress evenly, reducing stress concentration at the weld joint and enhancing fatigue strength. The butt-weld connection creates a permanent, leak-proof seal that can withstand repeated pressure cycles and harsh operating conditions.
Precision Machining & Sealing:CNC-machined sealing faces (Flat Face/FF, Raised Face/RF, Ring Type Joint/RTJ) ensure tight gasket seating, preventing leakage even in high-pressure applications. The neck and pipe end are precision-machined for seamless butt welding, ensuring a smooth flow path and minimizing turbulence.
Wide Size Range & Customization:Available in sizes from DN15 to DN3000 (1/2"-120"), with thicknesses ranging from 8mm to 150mm, covering most high-pressure piping needs. Custom sizes, neck lengths, and pressure ratings are available to meet specific project requirements.
Long Service Life:Rugged stainless steel construction and strict quality control ensure the flange can withstand heavy loads, corrosion, and extreme temperatures, minimizing maintenance needs and extending service life in long-term, critical operations.
Applications
Our 304/316 Stainless Steel Threaded Flanges are widely used in industries that require convenient installation and reliable sealing, including:
Oil & Gas Exploration, Production, and Refinery Systems
Petrochemical and Chemical Processing (high-pressure, corrosive media)
Power Generation (nuclear, thermal, hydroelectric) Piping Systems
Marine and Offshore Platforms (harsh saltwater environments)
Aerospace and Defense Piping Applications
Pharmaceutical and Food Processing (high-purity, hygienic requirements)
Heavy Industry (steel plants, fertilizer facilities, mining)
Yuhao Stainless Steel: Your Trusted Partner in Industrial Pipe Fittings
Company Overview
Since its establishment in 2018, YuHao Stainless Steel has remained steadfast in its commitment to excellence. Today, we stand as a specialized manufacturer of industrial pipe fittings, seamlessl... Yuhao Stainless Steel: Your Trusted Partner in Industrial Pipe Fittings
Company Overview
Since its establishment in 2018, YuHao Stainless Steel has remained steadfast in its commitment to excellence. Today, we stand as a specialized manufacturer of industrial pipe fittings, seamlessl...
