Sodium Metasilicate for Welding Flux
High-purity sodium metasilicate powder used in welding flux formulations, falling under tariff item 2839.11.00 as a commercial alkali silicate. It provides slag-forming and cleaning properties during welding, and its purity ensures consistent performance.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the flux contains other silicates or additives
Prepared welding flux may fall under other headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the product is pure sodium metasilicate, as welding flux preparations with binders may be classified elsewhere
• Provide a detailed specification sheet showing purity and absence of additives
• Check if the product requires any special import permits for industrial use
Related Products under Tariff item 2839.11.00
Anhydrous Sodium Metasilicate
Anhydrous sodium metasilicate (Na2SiO3) is the water-free powdered form of this commercial alkali metal silicate, explicitly covered by tariff item 2839.11.00. It serves as a key ingredient in heavy-duty detergents and industrial cleaning compounds, where its high alkalinity and sequestering properties are essential.
Liquid Sodium Metasilicate 50% Solution
A 50% aqueous solution of sodium metasilicate, classified as a commercial sodium metasilicate under tariff item 2839.11.00. Utilized in pulp and paper processing as a defoamer and alkaline agent, this solution is a normal and necessary method of putting up the product for transport and safety.
Metso Beads Sodium Metasilicate
Metso Beads are dense, bead-form anhydrous sodium metasilicate, classified under tariff item 2839.11.00. Designed for easy handling in detergent manufacturing, its low dust and high solubility make it ideal for industrial formulations requiring precise dosing.
Sodium Metasilicate Nonahydrate Crystals
Sodium metasilicate nonahydrate (Na2SiO3·9H2O) appears as free-flowing white crystals, a hydrated commercial sodium silicate under tariff item 2839.11.00. Commonly used in laundry powders and metal cleaning compounds, the water of crystallization is integral to its structure.
Sodium Metasilicate Pentahydrate
Sodium metasilicate pentahydrate (Na2SiO3·5H2O) is a hydrated form of sodium metasilicate, a granular or powdered inorganic compound classified under tariff item 2839.11.00 as a commercial sodium silicate. It is widely used in detergents, cleaning agents, and as a corrosion inhibitor.