Cold-Drawn Inconel 625 Alloy Steel Pressure Tubing
Seamless cold-drawn Inconel 625 nickel-chromium alloy steel tubes, circular cross-section, for high-pressure hydraulic systems in aerospace. HTS 7304.51.50.60 covers other cold-rolled seamless tubes of other alloy steel. Thin walls and small diameter fit wire definition in chapter notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If predominantly nickel content
High nickel alloys like Inconel may classify under Chapter 75 nickel tubes if steel content insufficient.
If of stainless steel alloy
If qualifying as stainless (min chromium), moves to stainless subheading within same heading.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• ASME/ASTM specs (e.g
• B704) must accompany shipment; common issue is misdeclaration as nickel alloy excluding steel base
• Verify 'other alloy steel' status via melting practice certificates; Inconel blends can border Chapter 75 nickel products
• Pressure test reports help prove hydraulic end-use without reclass to machinery parts
Related Products under HTS 7304.51.50.60
Cold-Drawn 316 Stainless Steel Hypodermic Tubing
Seamless cold-drawn tubes of 316 alloy steel with circular cross-section, outer diameter under 16mm, used in medical needles and syringes. Classified under 7304.51.50.60 as cold-formed seamless hollow profiles of alloy steel, not further worked beyond cold-reduction. Meets chapter definition of 'wire' due to small cross-section.
Cold-Rolled 17-4 PH Stainless Steel Capillary Tubing
Precision cold-rolled seamless capillary tubes of 17-4 PH precipitation-hardening alloy steel, circular cross-section under 3mm OD, for instrumentation and chromatography. Falls under 7304.51.50.60 as other cold-drawn/rolled seamless alloy steel tubes. Alloy steel per chapter notes, hollow profile suitable for wire-like dimensions.
Cold-Rolled Monel 400 Alloy Seamless Tubing
Cold-rolled seamless tubes of Monel 400 copper-nickel alloy steel, circular cross-section under 12mm, for marine and chemical processing instrumentation. Under 7304.51.50.60 as other cold-formed alloy steel hollow profiles. Chapter wire definition applies to small dimension.
Cold-Drawn Hastelloy C-276 Alloy Hypodermic Tubing
Seamless cold-drawn Hastelloy C-276 nickel-moly alloy steel tubes for corrosive chemical injection needles, circular thin-wall profile. 7304.51.50.60 for other cold-rolled seamless alloy steel tubes. Fits chapter wire cross-section limit.
Cold-Rolled 15-5 PH Stainless Precision Tubing
Cold-rolled seamless 15-5 PH martensitic alloy steel tubing, circular cross-section for aerospace actuators and fuel lines. HTS 7304.51.50.60 as other cold-reduced alloy steel seamless pipes. Alloy per notes, small profile as wire.
Cold-Drawn Duplex 2205 Stainless Instrumentation Tubing
Seamless cold-drawn Duplex 2205 (UNS S32205) alloy steel tubing for oil/gas pressure sensors, circular cross-section under 10mm. Classifies 7304.51.50.60 other cold-rolled seamless alloy tubes. Corrosion-resistant alloy steel hollow profile.