Rough Forged Stainless Steel Slip-On Flange
Unfinished forged stainless steel slip-on flange for easy pipe attachment via welding, retaining forging scale and no surface treatment. Falls under HTS 7307.21.10.00 due to stainless steel construction and lack of any post-forging processing. Common in oil and gas pipeline assemblies.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of stainless steel but machined post-forging
Machined stainless flanges have separate provisions excluding rough forgings.
If in semi-finished billet form before flange shaping
Ingots, blooms, or billets of stainless steel precede forged shapes in production.
If classified as seamless stainless tubes rather than fittings
Dimensional ambiguity might lead to tube classification if not clearly a flange.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide photos or samples showing forging imperfections to Customs for verification of 'not processed' status
• Ensure country-of-origin marking on forgings complies with stainless steel origin rules for duty preferences
• Avoid common pitfall of mixing with machined inventory; segregate shipments clearly
Related Products under HTS 7307.21.10.00
Forged Stainless Steel Weld Neck Flange
A rough forged stainless steel flange designed for welding to pipes in piping systems, left unprocessed after forging with visible forging marks. Classified under HTS 7307.21.10.00 as a stainless steel flange not machined, tooled, or otherwise processed post-forging. Used primarily in industrial applications like chemical processing.
Forged 304 Stainless Steel Blind Flange
Roughly forged 304-grade stainless steel blind flange used to cap pipe ends, unprocessed with hammer marks intact. HTS 7307.21.10.00 applies as it's a stainless steel flange not further worked after forging. Essential for pressure vessel closures in refineries.
Unprocessed Stainless Steel Socket Weld Flange
Forged stainless steel socket weld flange in raw state for socket welding to pipes, no machining applied post-forging. Meets HTS 7307.21.10.00 for other stainless steel flanges not tooled after forging. Applied in high-pressure sanitary piping.
Forged Duplex Stainless Steel Flange Blank
Rough forged duplex stainless steel (2205 grade) flange blank for extreme pressure applications, unprocessed after hammer forging. HTS 7307.21.10.00 covers such stainless steel flanges not otherwise worked. Used in subsea oil recovery.
Raw Stainless Steel Long Neck Flange
Forged stainless steel long neck flange in raw form for high-stress welding, no post-forging treatment. Fits HTS 7307.21.10.00 for unprocessed stainless flanges. Prevalent in power plant steam lines.
Unfinished 304L Stainless Steel Plate Flange
Rough forged 304L stainless plate flange for general piping, preserved in as-forged condition. HTS 7307.21.10.00 for stainless steel flanges not machined post-forging. Suited for pharmaceutical cleanrooms.