Steam Turbine Diaphragm Staging from Canada
Stationary diaphragm assemblies with guide vanes that direct steam flow onto turbine blades for optimal energy extraction. Falls under HTS 8406.90.45 as 'other' parts of steam turbines, distinct from rotors or casings. Used in multi-stage turbines for efficient power output in thermal plants.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide material composition (e.g
• high-temperature alloys) and CAD models to substantiate steam turbine specificity
• Ensure invoices specify 'for steam turbines only' to prevent shifts to generic castings under 7325 or 8419