Calcium
Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: > Alkali or alkaline-earth metals: > Calcium
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2805.12.00.00
Calcium Metal Granules
Pure calcium metal in granular form, produced by thermal reduction of calcium oxide, used primarily in alloy production and as a reducing agent in chemical synthesis. This product is classified under HTS 2805.12.00.00 as elemental calcium, an alkaline-earth metal in its unalloyed, pure form meeting Chapter 28 definitions for chemical elements.
Calcium Metal Lumps
Irregular lumps of elemental calcium metal, typically 98-99% pure, obtained from electrolysis or aluminothermic processes, essential for lead-calcium battery alloys and pyrotechnics. Falls under HTS 2805.12.00.00 as unalloyed alkaline-earth metal in primary lump form per Chapter 28 notes.
High-Purity Calcium Ingots
99.9% pure calcium cast into ingot shapes for research and high-precision applications like semiconductor doping and getter materials in vacuum systems. Classified in HTS 2805.12.00.00 as chemically defined alkaline-earth metal element, unworked except for casting.
Calcium Metal Turnings
Fine turnings or chips of elemental calcium generated from machining, used as reactive fillers in pyrotechnic compositions and chemical reagents. HTS 2805.12.00.00 covers these as primary forms of unalloyed calcium metal.
Research-Grade Calcium Metal
Ultra-high purity (99.999%) calcium metal in small quantities for laboratory research, spectroscopy standards, and material science studies. Meets HTS 2805.12.00.00 criteria as pure alkaline-earth element for scientific applications.