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FNS (Nanjing)
Pipeline Flange Product Processing Case: ASTM A694 F60 + Inconel 625 (NiCrMo-3)

Pipeline Flange Product Processing Case: ASTM A694 F60 + Inconel 625 (NiCrMo-3)

This project highlights the internal surface cladding of high-pressure pipeline flanges using Inconel 625 (NiCrMo-3) over ASTM A694 F60 carbon steel. Designed for critical pipeline connections in aggressive service conditions, this solution provides exceptional resistance to chloride-induced corrosion, sulfide stress cracking, and extreme temperatures.

ASTM A694 F60 + Inconel 625 (NiCrMo-3) Pipeline Flange Product

ASTM A694 F60 + Inconel 625 (NiCrMo-3) Pipeline Flange Product

Through automated GTAW/PAW/CMT cladding techniques, a uniformly bonded corrosion-resistant alloy (CRA) layer is applied to the sealing face and inner bore of the flange. The process ensures excellent metallurgical bonding, minimal dilution, and superior surface smoothness.

ASTM A694 F60 + Inconel 625 (NiCrMo-3) Pipeline Flange Products

ASTM A694 F60 + Inconel 625 (NiCrMo-3) Pipeline Flange Products

Key Features:

  • Base material: ASTM A694 F60, engineered for high-strength, high-pressure pipeline systems

  • Cladding alloy: Inconel 625, ideal for sour service and offshore oil & gas environments

  • Enhanced sealing integrity, anti-corrosion performance, and long-term reliability

  • Suitable for use in refineries, petrochemical plants, and subsea transmission systems

FNS delivers precision-engineered CRA-cladded flange products to meet the most stringent service demands in global energy infrastructure.

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