Nuclear facilities require channels with exceptional radiation and corrosion resistance:
Material Performance:
304L stainless channels (ASTM A213) withstand 10⁶ Gy radiation without embrittlement, maintaining 205MPa yield strength in spent fuel pools. US's Palo Verde Nuclear Generating Station uses these.
Critical Dimensions:
Channels with 150×75×8mm dimensions maintain 12.7mm spacing between fuel assemblies, ensuring proper cooling. France's EDF uses these in Flamanville EPR reactors.
Corrosion Resistance:
Channels resist 300°C borated water corrosion, achieving <0.1mm/year penetration rate-10x slower than carbon steel. South Korea's Kori Nuclear Power Plant employs these.
Global Standards:
Russian nuclear plants use GOST 977-88 08X18H10 channels, while Chinese facilities specify GB/T 4237 06Cr19Ni10 channels with 6mm minimum thickness for CNNC projects.