
Alloy Steel Weld Neck Flange
Alloy Steel Weld Neck Flange - Cangzhou Huishang 30-year professional manufacturer. ISO 9001, CE, API certified. Multiple international standards available....
Product Overview
Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd. manufactures high-quality Alloy Steel Weld Neck Flange with over 30 years of experience. Our flanges are produced in strict compliance with international standards, ensuring reliable performance in various industrial pipeline systems.
Technical Specifications
Type: Weld Neck (WN)
Standards: ASME B16.5, ASME B16.47, DIN, EN, JIS, GB, GOST
Materials: Carbon Steel (A105, 20#, Q345B, 16Mn, 12Mn), Stainless Steel (F304, F304L, F316, F316L), Duplex Steel (F51, F53)
Pressure Rating: Class 150-2500, PN10-100, JIS 10K-63K
Size Range: DN15-DN600 (1/2"-24")
Sealing Face: RF, MFM, RTJ
Manufacturing & Quality
Forged for superior durability, precision CNC machining with ±0.5mm tolerance, continuous heat treatment, and comprehensive NDT testing (UT, MT, PT, RT). Certified with ISO 9001:2015, CE (PED/CPR), API 5L/6D. Each batch comes with complete MTC traceability.
Applications
Widely used in oil & gas pipelines, petrochemical plants, power plants, water treatment facilities, shipbuilding, and HVAC systems. Monthly capacity of 50 containers with 7-15 days standard delivery. Custom sizes and special materials available upon request.

