Modified 9Cr-1Mo SA-387 P9C Seamless Pipe
Modified 9Cr-1Mo (P9C) seamless alloy pipe for refinery hydrocracker service, 180 mm OD x 16.5 mm wall thickness. HTS 7304.59.80.35 for seamless other alloy steel circular pipe in size range. Vacuum degassed for ultra-low impurities.
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Import Tips & Compliance
• Include ladle analysis showing V/Nb/Cb additions distinguishing from standard P9
• Declare 'modified' chemistry explicitly to prevent downgrading to commodity alloy pipe
• Use nitrogen-purged containers for high-alloy pipes sensitive to oxidation
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