Cast Iron Combustion Chamber Flange
Cast iron flange ring for bolting combustion chambers in stationary gas turbines, cleaned and machined solely for sprue removal and bolt circle location. Fits HTS 8411.99.1010 as nonaircraft gas turbine rough part.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general pipe flanges
Cast iron flanges not identified for turbines classify as pipe fittings in Chapter 73.
If precision machined flanges
Flanges with finished bolt holes/mating surfaces exceed rough casting provisions.
If aircraft spark-ignition engines
Combustion parts for aircraft reciprocating engines fall under separate Chapter 84 headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify exact machining tolerances in contracts to stay within 'removal of fins/gates' limits
• Include material certs confirming cast iron per ASTM specs to avoid steel misclassification
• Flag for HTS binding ruling if borderline machining extent
Related Products under HTS 8411.99.10.10
Cast Iron Turbine Frame Cross Brace
Rough cast iron cross bracing for structural turbine frame in nonaircraft gas turbines, minimal machining for assembly. HTS 8411.99.1010 nonaircraft part.
Cast Iron Gas Turbine Liner Support
Cast iron support structure holding combustion liners in gas turbine combustors, rough with locator machining only. Fits HTS 8411.99.1010 for nonaircraft rough parts.
Cast Iron Turbine Shaft Bearing Pedestal
Rough cast iron pedestal housing turbine shaft bearings in power generation gas turbines, cleaned/machined minimally. HTS 8411.99.1010 classification applies.
Cast Iron Exhaust Collector Box
Rough cast iron box collecting exhaust from multiple turbine stages in industrial gas turbines, basic machining only. Nonaircraft part under HTS 8411.99.1010.
Cast Iron Transition Duct Casting
Rough cast iron duct transitioning hot gas between turbine stages in stationary gas turbines, cleaned with locator holes. Classifies HTS 8411.99.1010.
Cast Iron Gas Turbine Compressor Casing
A rough-machined cast iron housing for the compressor section of industrial gas turbines used in power generation. It is cast from iron, cleaned, and machined only to remove fins, gates, sprues, risers, or for fixture location, fitting HTS 8411.99.1010 as a part of nonaircraft gas turbines not advanced beyond basic preparation.