Industrial Carbon Steel Flange 18-Inch ID
Heavy wall carbon steel flange 457 mm ID for slurry pipelines in mining operations. Classifies HTS 7307.91.5050 as iron/nonalloy large flange. Abrasion-resistant for ore transport systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless clad construction
Corrosion overlay on carbon steel base becomes stainless flange classification.
If for mining conveyor parts
End-use as mineral processing equipment parts shifts to Chapter 84.
If screw-threaded ends
Fully threaded large flanges use different connection classification.
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Import Tips & Compliance
• Hardness testing (Rockwell B 80-95) documentation for slurry abrasion resistance
• Wall thickness schedules (Sch 160+) need matching pipe dimension verification
• Avoid importing with wear liners; composite construction changes classification
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