AISI 321 Hot-Rolled Stainless Steel Coil Rod
Hot-rolled stainless steel bars and rods in irregularly wound coils with circular cross section under 14 mm diameter, containing 12-14% nickel for improved corrosion resistance. Classified under HTS 7221.00.00.18 due to specific nickel content between 8-24%, hot-rolled form, and small diameter coil configuration. Used in automotive exhaust systems and chemical processing equipment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cold-rolled or cold-drawn
Cold-worked stainless steel bars/rods shift to Chapter 72 heading 7222, regardless of nickel content.
If diameter 14 mm or more
Larger diameter hot-rolled coil rods (>14 mm) fall under different subheading in same 7221.00 series.
If not stainless steel
Hot-rolled bars/rods in coils without stainless properties (e.g., <10.5% chromium) classified under carbon/alloy steel headings.
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Import Tips & Compliance
• Provide mill test certificates verifying nickel content (8-24% by weight) and exact diameter under 14 mm to avoid reclassification
• Ensure documentation confirms hot-rolled in irregularly wound coils, not straightened or further worked per Chapter 72 notes
• Watch for common pitfalls like rust/discoloration; no duty allowance per U.S. note, so inspect prior to entry
Related Products under HTS 7221.00.00.18
AISI 316L Hot-Rolled Stainless Coil Rod
Low-carbon variant of 316 stainless steel, hot-rolled into irregularly wound coils with diameter <14 mm and 10-14% nickel content for marine and pharmaceutical applications. Fits HTS 7221.00.00.18 precisely due to nickel range, circular cross-section, and hot-rolled coil form per stainless steel definitions. Ideal for welded structures requiring high ductility.
Nitronic 50 Hot-Rolled Stainless Coil Rod
High-strength austenitic stainless steel with 11-14% nickel, hot-rolled in coils of <14 mm diameter rods for valve stems and pump shafts. HTS 7221.00.00.18 applies for its 8-24% nickel, circular section, and irregular wound coil presentation. Offers superior galling resistance in harsh environments.
AISI 317 Hot-Rolled Stainless Steel Wire Rod Coil
Molybdenum-enhanced stainless with 11-15% nickel, supplied as hot-rolled <14 mm diameter rods in coils for chemical industry fasteners. Matches HTS 7221.00.00.18 criteria: 8-24% Ni, circular, small diameter hot-rolled stainless coils. Provides excellent pitting resistance.
Custom 8% Nickel Hot-Rolled Stainless Coil Rod
Stainless steel alloy with minimum 8% nickel content, hot-rolled into <14 mm diameter circular rods in irregular coils for aerospace fasteners. HTS 7221.00.00.18 designation reflects lower-end nickel range (8-<24%), stainless properties, and precise physical form. Balances cost and corrosion performance.
AISI 310 Hot-Rolled Stainless Steel Rod Coil
High-temperature resistant stainless with 19-22% nickel, hot-rolled <14 mm diameter rods in wound coils for furnace components. Perfectly fits HTS 7221.00.00.18 with upper nickel range (8-24%), circular stainless hot-rolled form. Withstands oxidation up to 1100°C.