M50 Alloy Steel Seamless Bearing Tube from United States
Seamless tube from M50 high-speed alloy steel (AMS 6491), designed for aerospace ball bearing races requiring extreme hardness and fatigue resistance. Circular cross-section with precise ID/OD for finish machining, it falls under tariff item 7304.59.00 as other seamless tubes of alloy steel.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Confirm the tube is seamless and circular
• Provide an AMS 6491 certificate to support the alloy grade
• Check if any export controls apply due to aerospace end-use