In demanding environments where standard stainless steel fails, Hastelloy Flanges stand as the ultimate safeguard for system longevity. Jiangyin Zhonghai Precision Machinery Co., Ltd. leverages its deep forging heritage and advanced CNC machining capabilities to provide high-grade flanges in various alloys, including Hastelloy C276, C22, and B2.

Our Hastelloy flanges are engineered not only to meet international material purity standards but also to excel in structural integrity. With fully integrated in-house forging, heat treatment, machining, and testing, we produce a wide range of standard and bespoke flanges from 1/2" to 60", with pressure ratings up to 2500 lbs. This ensures a leak-free seal and reliable performance even when handling aggressive acids, alkalis, and high-temperature media.

Core Advantages
·Vertical Integration: We control the entire process from the raw forged ingot to the precision-machined finish. Unlike pure machining shops, our forging process optimizes the metal grain flow, significantly enhancing the mechanical toughness of Hastelloy under pressure.
·Authoritative Certifications: As an ISO 9001 certified manufacturer with PED/TUV/TS credentials, our products meet the most stringent safety and quality standards for the global pressure equipment market.
·Large-Scale Customization: We are equipped to handle massive components up to 10 tons in weight and 4 meters in diameter. Simply provide your blueprints or key parameters (OD, ID, thickness, pitch), and we will deliver a fast technical evaluation and quote.
 ·Stringent Quality Control: Our independent QA department monitors chemical composition, metallographic structure, mechanical properties, and NDT (UT/MT) to ensure every flange offers 100% traceability.

Key Features
·Exceptional Corrosion Resistance: Superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in both oxidizing and reducing environments.
·Micron-Level Precision: Utilizing high-end CNC turning and drilling ensures that sealing face flatness and bolt-hole alignments are exact, allowing for seamless installation.
·Thermal Stability: Maintains high mechanical strength and oxidation resistance at elevated temperatures, ideal for complex chemical reactions.
·Flexible Engineering: Available in standard (ASME/DIN/JIS/GB) or non-standard configurations. We can optimize structures based on your specific application (e.g., customized facings or structural modifications).

Applications
·Fine Chemicals & Pharma: Reactor interfaces handling sulfuric, hydrochloric, or phosphoric acids.
·Oil & Gas: Extraction and transport in sour service environments (H2S and high chloride).
·Environmental Engineering: Critical components in Flue Gas Desulfurization (FGD) and industrial wastewater treatment.
·Marine & Offshore: Subsea equipment and connectors requiring long-term resistance to salt spray and seawater erosion.