Aluminum Bronze C95400 Unwrought Ingots
C95400 aluminum bronze unwrought ingots with 10-11.5% aluminum, 4% iron, but critically 3.5-5% tin where tin predominates over other individual elements per note (b). Used for heavy-duty gears and marine propellers. High-strength casting alloy.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If aluminum predominates over tin in alloy composition
Alloys where no specific base metal predominates per notes fall into the other copper alloys provision.
If when imported specifically as master alloy for addition to other melts
Heading 7405 covers master alloys excluded from 7403, typically with higher concentration of specific elements.
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Import Tips & Compliance
• Critical to document tin content specifically; aluminum bronzes can be contentious between 7403.22 and 7403.29
• Use FDA-compliant packaging if eventual end-use is food contact bearings
• Verify country of melt and pour origin; Section 232 tariffs may apply to certain steel/metal imports
Related Products under HTS 7403.22.00.00
Phosphor Bronze C51000 Unwrought Ingots
Unwrought phosphor bronze C51000 ingots containing approximately 5% tin and 0.2% phosphorus, classified as copper-tin base alloy under subheading note (b) because tin predominates over other elements. These are used in manufacturing electrical components and springs. Supplied in large cast form for remelting.
Leaded Tin Bronze C93200 Unwrought Bars
Unwrought SAE 660 (C93200) leaded tin bronze bars with 6-8% tin, 6-8% lead, suitable for bearings and bushings. Meets bronze definition as tin predominates over non-copper elements excluding allowable zinc. Cast in simple rectangular form without further working.
Silicon Bronze C65500 Unwrought Rods
Unwrought silicon bronze C65500 rods containing 3% silicon, 4.8% tin ensuring tin predominance for bronze classification. Corrosion-resistant alloy used in marine hardware and weld rods. Cast sections not mechanically worked.
Naval Bronze C46400 Unwrought Plates
Unwrought naval bronze C46400 cast plates with 39-42% zinc and 5% tin, but tin content controls classification as copper-tin base per note (b) allowance for zinc up to 10% when tin ≥3%. Traditional propeller and valve alloy.
High-Leaded Tin Bronze C93800 Ingots
C93800 high-leaded tin bronze ingots with 10% tin, 20% lead for exceptional machinability in screw machine products. Tin predominance maintains bronze status despite high lead. Used for high-speed machining applications.
Manganese Bronze C86500 Unwrought Form
C86500 manganese bronze unwrought castings with 4% tin ensuring bronze classification despite 39% zinc and 3% manganese. High tensile strength for marine castings and gears. Complex alloy meeting tin-dominant criteria.