Silico-Manganese Alloy Music Wire from China
Ultra-high tensile silico-manganese steel wire used for piano wires, springs, and precision instruments requiring consistent elasticity. HTS 7229.20.00 classification based on characteristic silico-manganese composition providing superior fatigue resistance. Polished surface finish with diameters from 0.15mm to 5mm.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• Specify exact carbon, silicon, manganese percentages in entry docs; music wire tolerances stricter than industrial wire; test for torsional stress resistance