In the most demanding environments, such as petrochemical processing, nuclear power, and subsea engineering, standard stainless steel often fails to meet the required corrosion resistance and thermal stability. Nickel-based Alloy Flanges from Jiangyin Zhonghai Precision Machinery Co., Ltd. are specifically engineered to bridge this gap.

As an ISO 9001, PED, and TS certified manufacturer, we offer a fully integrated production suite—from in-house forging and specialized heat treatment to precision CNC machining. Whether you require standard components in Inconel, Hastelloy, or Monel, or complex custom parts up to 4 meters in diameter and 10 tons in weight, Zhonghai provides the reliability needed for zero-leakage operations in high-pressure and highly corrosive media.

Core Advantages
 ·Vertical Integration: With dedicated forging, heating, and CNC lines, we maintain 100% control over the manufacturing process, ensuring uncompromised quality from ingot to finished flange.
 ·Advanced Customization: We specialize in "Make-to-Print" services. Provide us with your drawings or key parameters (OD, ID, Thickness, Bolt Circle), and our engineering team will deliver a rapid technical evaluation and quote.
 ·Heavy-Duty Capacity: Capable of producing flanges up to 4 meters in diameter with pressure ratings from Class 150 to Class 2500, supporting the world's largest industrial vessels.
 ·Global Compliance: Manufactured strictly to ASME, ASTM, EN, DIN, JIS, and GB standards. Every component is backed by rigorous non-destructive testing (UT/MT/PT) and material traceability.

Key Features
·Exceptional Corrosion Resistance: Superior performance in reducing/oxidizing acids (sulfuric, hydrochloric, phosphoric) and high-chloride environments, resisting pitting and stress corrosion cracking.
·Thermal Stability: Maintains high mechanical strength and oxidation resistance at elevated temperatures, preventing creep and deformation.
·Precision Machining: Utilizing advanced CNC turning and drilling to ensure sealing faces (RF, RTJ) meet the most stringent roughness and geometric tolerance requirements.
·Optimal Metallurgy: Premium alloy grades combined with specialized solution annealing ensure a uniform grain structure and consistent performance.

Applications
·Chemical & Environmental: Reactors, heat exchangers, and FGD (flue gas desulfurization) systems handling aggressive chemicals.
·Marine & Offshore: Desalination plants, subsea manifolds, and offshore oil/gas production platforms.
·Power & Nuclear: Coolant systems and high-temperature steam lines in nuclear and thermal power plants.
·Aerospace: Test stands and propulsion system piping for extreme thermal environments.