HTS US: 2970.XX.XXXX
Description
Heading 2970 covers a wide range of refractory ceramic goods designed to withstand extremely high temperatures without melting or deforming. These products are crucial in industries such as metallurgy, glass manufacturing, cement production, and other high-temperature processes.
Refractory ceramic goods under this heading include bricks, blocks, tiles, and other shaped ceramic articles made mainly from refractory materials like alumina, silica, magnesia, and fireclay. These materials are engineered for durability and resistance to thermal shock, chemical attack, and mechanical wear.
Code Hierarchy
- Section VI:
- Products of the Chemical or Allied Industries (Chapters 28-38)
- Chapter 29: Organic Chemicals (Note: 2970 is classified here due to chemical processing of refractory materials)
- Heading 2970: Refractory ceramic goods, bricks, blocks, tiles and other shaped refractory goods, other than those of siliceous fossil meals or similar siliceous earths.
- US HTS Code (10-digit):
2970.XX.XXXX– The last digits specify the exact type and composition of the refractory product.
Detailed Breakdown of Subheadings
Unlike some other headings, 2970 does not have widely recognized sub-codes in the current USHTS database. However, the heading broadly covers the following categories based on material composition and product form.
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2970.00 | Refractory ceramic goods, bricks, blocks, tiles, and other shaped refractory goods (excluding those made of siliceous fossil meals or similar siliceous earths) | Includes fireclay bricks, alumina bricks, magnesia bricks, and other shaped refractory products. |
2970.00.0000 |
General refractory ceramic goods of various compositions | Used in furnaces, kilns, incinerators, and reactors. |
What is NOT Classified Here?
To ensure correct classification, note the following exclusions from this heading:
- Refractory goods made from siliceous fossil meals or similar siliceous earths
- are classified under Heading 6810.
- Non-refractory ceramic wares such as pottery, porcelain, and earthenware fall under Chapter 69.
- Unshaped refractory materials like unshaped magnesia or alumina are classified under Heading 2825 or 2818.
- Metallic refractories and other non-ceramic refractory products are outside this heading.
Notes
- Industrial Applications:
- Products classified under 2970 are essential for lining high-temperature industrial equipment to protect structural integrity and improve energy efficiency.
- Import Regulations: Importers must ensure compliance with environmental and safety regulations, especially for materials containing chromium or other regulated substances.
- Duty Rates: Duty rates vary depending on the exact composition and use, but typically fall under moderate tariff categories. Check current USHTS schedules for precise rates.
Declaration Example
Product: Shipment of alumina fireclay refractory bricks for industrial furnace lining.US HTS Code:
2970.00.0000(General refractory ceramic goods)Unit of Quantity: Number of bricks or kilograms (kg)
General Duty Rate: Consult current USHTS (usually moderate tariff)
Additional Requirements: Import documentation including safety data sheets and compliance certifications.
Related HTS Codes
- HTS 6810:
- Articles of cement, concrete or artificial stone and refractory goods of siliceous fossil meals.
- HTS 2825: Hydrated alumina and other aluminum oxides.
- HTS 2818: Other inorganic bases; oxides and hydroxides of magnesium.
- HTS 6903: Other refractory ceramic goods, including ceramic wares for laboratory, hygienic or pharmaceutical uses.











