Introduction
In nuclear power plants, safety and reliability are non-negotiable. Forged pipe fittings play a critical role in systems such as reactor cooling, steam generation, and main steam lines. Their high strength, toughness, and corrosion resistance make them ideal for extreme conditions. For procurement engineers, sourcing these components requires careful attention to materials, standards, and quality assurance. This guide outlines the essential considerations when purchasing forged fittings for nuclear applications.
Key Standards to Confirm
When specifying forged fittings for nuclear service, always verify compliance with the following standards:
- ASTM A182 / ASME SA182: Standard specification for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service.
- ASME Section III: Rules for construction of nuclear facility components (Class 1, 2, or 3).
- ASME B16.11: Forged fittings, socket-welding and threaded.
- NQA-1: Quality assurance requirements for nuclear facilities.
- RCC-M (France)
