17-4 PH Stainless Steel Spring Wire 5.5 mm
Precipitation-hardening 17-4 PH stainless steel round wire, 5.5 mm diameter, drawn for heavy-duty spring manufacturing. Classified in HTS 7223.00.10.76 as other stainless round wire >=5.1 mm diameter, not meeting tool steel element criteria in note (e).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied in straightened lengths over 1m for springs
straightened and cut stainless wire for mechanical springs classifies under heading 7228 other stainless wire.
If carbon steel rather than stainless
Non-stainless bars/rods in coils move to heading 7213 if not alloyed per definitions.
If electrode quality for arc welding
Specific welding wire preparations shift within 7223 to dedicated subheadings.
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Import Tips & Compliance
• Provide precipitation hardening certification to distinguish from standard austenitics; confirm diameter exceeds 5.1 mm with caliper measurements; label coils clearly to prevent confusion with smaller wire duties
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