Grade 5 Tungsten Carbide Bearing Balls from Japan
Ultra-hard tungsten carbide balls (Grade 5 precision) for roller bearings in wafer slicing saws, providing durability against abrasive semiconductor materials like silicon boules. HTS 8482.91.0030 covers these as 'other' balls not fitting standard categories, suited for high-wear semiconductor processing equipment.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include hardness (e.g
• HRA 90+) and ISO 3290 grading proofs; segregate from lower-grade balls to prevent downclassification; comply with REACH for alloyed metals