Ferrosilicon Tungsten FeW-40Si20 Granules from Mexico
FeW-40Si20 ferrosilicon tungsten granules with 40% silicon and 20% tungsten, applied in welding electrodes and low-alloy steels. HTS 7202.80.00.00 explicitly includes ferrosilicon tungsten as defined in Chapter 72 ferroalloys. Granular form optimizes recovery rates in submerged arc welding.
Duty Rate — Mexico → United States
5.6%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide entry certificates matching commercial grade specs (e.g
• FeW-40); deviations trigger lab testing
• Package in nitrogen-flushed containers to inhibit oxidation of silicon component
• Distinguish from silico-manganese (7202.30) via tungsten assay reports