Nuclear power plants require the highest levels of material traceability, documentation, and quality assurance of any industry. SS 304L and 316L with full NDE, EN 10204 3.2 third-party witnessing, and complete heat-to-heat traceability are standard requirements.
The primary coolant circuit carries radioactive water — material traceability from mill to installation is mandatory. Nuclear-grade SS 304L and 316L with ASME Section III compliance, full NDE (UT, RT, PT), and EN 10204 3.2 MTC (third-party witnessed).
Secondary steam piping operates at elevated temperatures. SS 321 and 347 for stainless circuits. Chrome-moly alloy grades WP11 and WP91 for high-temperature steam lines. IBR compliance for Indian nuclear power projects.
Emergency core cooling (ECCS), residual heat removal (RHR), and other safety systems use SS 304L and 316L. Full material certification and documentation trail is mandatory for all safety-classified components.
Spent nuclear fuel handling and radioactive waste processing require materials resistant to radiation damage and highly corrosive environments. Inconel 625 for wet storage. Hastelloy C276 for acid reprocessing.
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