17-4 PH Stainless Steel Seamless Instrumentation Tubing 3mm OD
Cold-drawn precipitation-hardening 17-4 PH stainless steel tubing, 3 mm OD, for high-pressure sensors and gauges in aerospace. Fits HTS 7304.41.30.45 as other cold-formed seamless stainless tubes under 19 mm OD, circular cross section. Stainless steel composition confirmed per chapter notes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of alloy steel but not stainless
Non-stainless alloy seamless tubes shift to 7304.39, changing material-based heading.
If cold-formed but welded construction
Welded cold-formed stainless tubes under 19 mm OD fall under welded tubes heading 7306.
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Import Tips & Compliance
• Include heat treatment and alloy certification (AMS specs); ensure no fittings attached to avoid parts classification
• Pitfall: misdeclaring as carbon steel evades higher stainless duties
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