316L Stainless Steel Capillary Tubing
Precision welded stainless steel capillary tube with OD under 3mm and wall <1.65mm, used in chromatography and instrumentation. Falls under 7306.40.1090 for other welded circular stainless steel tubes with thin walls. Excludes open-seamed or specific alloy exclusions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wall thickness 1.65 mm up to 3.5 mm
Slightly thicker walls place it in adjacent subheading with potentially different rates.
If for seamless capillary variants
Seamless construction routes to cold-drawn seamless stainless tubes in heading 7304.
If imported as lab equipment parts
If specified for machinery like chromatographs, may classify as parts of Chapter 84 lab apparatus.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide precise OD/ID measurements; capillary tubes often scrutinized for 'hollow profile' vs tube distinction
• Chemical composition certs essential for 316L to prevent duty hikes if deemed other steel
• Avoid bulk packaging mimicking rods; retail coiled packaging supports tube classification
Related Products under HTS 7306.40.10.90
304 Stainless Steel Hypodermic Tubing
Thin-walled welded stainless steel tubing used in medical needles and syringes, with circular cross-section and wall thickness under 1.65 mm. Classified under HTS 7306.40.1090 as welded stainless steel tube of circular cross section, other than specific excluded types. Meets chapter definition for iron or steel tubes.
Stainless Steel Beverage Straw Tubing
Welded thin-walled stainless steel tubing cut to straw lengths, circular cross-section under 1.65mm wall for reusable drink straws. HTS 7306.40.1090 applies to other welded stainless tubes not fitting precision exclusions. Common in consumer goods.
Thin-Wall 304 Stainless Steel Instrument Tubing
Welded 304 stainless tube for pressure gauges and sensors, circular with wall <1.65mm. Classified in 7306.40.1090 as other stainless welded tubes. Used in industrial instrumentation.
Stainless Steel Aerosol Can Body Tubing
Welded stainless steel tube stock for forming aerosol can bodies, thin wall <1.65mm circular. HTS 7306.40.1090 for other welded stainless tubes. Pre-formed for container manufacturing.
316 Stainless Steel Microbore Tubing
Ultra-thin welded 316 SS microbore tubing for HPLC systems, wall <1.65mm. Under 7306.40.1090 as other circular welded stainless tubes. Precision bore for fluid transfer.
Stainless Steel Umbrella Rib Tubing
Thin-walled welded stainless tube for umbrella frame ribs, circular <1.65mm wall. HTS 7306.40.1090 covers other such tubes. Lightweight for consumer umbrellas.