Chrome-Moly P11 Alloy Steel Threaded Coupling 6-inch
P11 grade (1.25% Cr) chrome-moly alloy steel threaded sleeve for power plant steam lines, rated 600 PSI. HTS 7307.92.3030 covers these high-temperature alloy threaded couplings excluding stainless compositions.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as alloy tubes before fitting formation
Pre-formed tubes of alloy steel classified under 7304, only finished fittings under 7307.
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Import Tips & Compliance
• SA-335 P11 material cert required; chromium content (1-1.5%) confirms alloy status
• Mark with ASME B16.11 standards compliance
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