17-4 PH Precipitation Hardening Stainless Coil 7mm Thick
17-4 PH martensitic precipitation hardening stainless steel cold-rolled coil, 7 mm thick × 1000 mm wide for aerospace structural components. HTS 7219.31.0010 for thick cold-rolled stainless coils not further worked. Age-hardens to 40 HRC for high strength applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If qualifies as tool steel per note (e)
Specific high-carbon/chromium combinations defined as tool steel move to heading 7222.
If electrical (transformer quality)
Silicon-electrical stainless steel has dedicated subheading regardless of thickness.
If pre-formed into pipe sections
Any tube/pipe fabrication, even partial, shifts from flat-rolled Chapter 72 to 7306.
Not sure which classification is right?
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Import Tips & Compliance
• PH grade requires detailed alloy cert (17% Cr, 4% Ni, Cu precipitation); generic 400-series docs insufficient
• Note condition (H900, H1150) on entry docs doesn't affect HTS but important for end-use compliance
• Coils must arrive rust-free; no duty allowance for Chapter 72 discoloration per note
Related Products under HTS 7219.31.00.10
Type 304 Stainless Steel Cold-Rolled Coil 6mm Thick
Flat-rolled stainless steel coil of Type 304 alloy, cold-rolled to a thickness of 6 mm and width exceeding 600 mm, supplied in coil form for industrial fabrication. Classified under HTS 7219.31.0010 as cold-rolled stainless steel not further worked, 4.75 mm or more thick, in coils. Commonly used for manufacturing chemical processing equipment and food industry components.
Type 316L Stainless Steel Cold-Rolled Coil 5mm Thick
Cold-rolled Type 316L stainless steel coil with 5 mm thickness and width over 600 mm, ideal for marine and pharmaceutical applications requiring corrosion resistance. Fits HTS 7219.31.0010 for cold-reduced stainless steel coils 4.75 mm or thicker, not further worked. Low carbon variant prevents weld decay in fabricated structures.
Duplex 2205 Stainless Steel Cold-Rolled Coil 8mm Thick
High-strength Duplex 2205 stainless steel cold-rolled coil, 8 mm thick and 1500 mm wide, used in oil & gas platforms for superior strength and pitting resistance. HTS 7219.31.0010 applies to cold-rolled stainless flat products ≥4.75 mm thick in coils, not further worked. Dual-phase microstructure provides excellent weldability.
Type 310 Stainless Steel Cold-Rolled Coil 4.8mm Thick
Type 310 high-temperature stainless steel cold-rolled coil at minimum 4.8 mm thickness, 1200 mm width for furnace and heat exchanger fabrication. Classifies in HTS 7219.31.0010 as cold-reduced stainless ≥4.75 mm thick, coil form, without further working. Excellent oxidation resistance up to 1100°C.
Type 321 Stainless Steel Cold-Rolled Coil 10mm Thick
Stabilized Type 321 stainless steel cold-rolled coil 10 mm thick, 1800 mm width for welded pressure vessels avoiding carbide precipitation. HTS 7219.31.0010 covers thick cold-rolled stainless in coils. Titanium stabilization enables high-temperature welding.
Type 430 Cold-Rolled Stainless Coil 5.5mm Thick
Ferritic Type 430 stainless steel cold-rolled coil 5.5 mm × 1400 mm wide for automotive trim and appliance exteriors. Classifies HTS 7219.31.0010 as cold-rolled stainless ≥4.75 mm thick in coils. Cost-effective 16-18% chromium ferritic grade.