Cold-Reduced Lock Forming Quality Steel
Cold-rolled lock forming quality (LFQ) steel strip, 1.7 mm thick, 400 mm wide, for Pittsburgh seam lock duct joints. Under 7211.29.60.30: nonalloy steel, cold-reduced, suitable for roll forming. Special formability grade for HVAC fabrication.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If further worked like coated
Any surface treatment beyond cold-rolling moves to 7211.90.
If in coils, high-strength
Coiled high-strength cold-rolled (note a) has specific subheadings.
If ball-bearing steel
Ball-bearing steel per note (h) specific composition classifies as alloy.
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Import Tips & Compliance
• LFQ grade doesn't change classification; remains standard cold-rolled nonalloy
• Specify forming quality in documentation but classify by physical specs
• No allowance for mill scale/rust per chapter note
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