Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials

HS code 381010 covers a range of chemical preparations used in the metalworking industry. These products play a crucial role in the processing and finishing of metal surfaces, enabling essential processes like pickling, soldering, brazing, and welding. As a key component of the broader metalworking and fabrication sectors, the 381010 industry supports a wide array of downstream industries, from construction and automotive to machinery and electronics manufacturing.

The main production techniques for HS code 381010 products involve the formulation and blending of various chemical compounds. Pickling preparations, for instance, typically contain acids, such as hydrochloric or sulfuric acid, along with other additives to remove oxidation and scale from metal surfaces. Soldering, brazing, and welding powders and pastes, on the other hand, are produced by mixing metallic powders, fluxes, and binders to create specialized compositions that facilitate these joining processes.

The primary inputs for the 381010 industry include raw materials such as acids, metallic powders (e.g., 740200 Copper, unwrought, 810120 Magnesium, unwrought), fluxes, and various organic and inorganic compounds. Specialized production equipment, such as blending and mixing machinery, is also essential for the formulation and packaging of these products. The industry relies on a robust supply chain of chemical suppliers and metalworking equipment manufacturers to support its operations.

The outputs of the 381010 industry are primarily consumed by the metalworking, fabrication, and construction sectors. The pickling preparations are used to clean and prepare metal surfaces prior to further processing, such as painting, plating, or coating. The soldering, brazing, and welding powders and pastes are essential inputs for 851511 (Industrial or laboratory electric (including induction or dielectric) furnaces and ovens; other industrial or laboratory equipment for the heat treatment of materials), 848210 Ball or roller bearings, and a wide range of metal fabrication and assembly processes.