Explanation: SJ401 belongs to the silicon manganese type sintered flux, which is an acidic flux with gray brown to black circular particles with a particle size of 2.0-0.28mm (10-60 mesh). Can be used for both AC and DC, with the welding wire connected to the positive electrode during DC welding. The welding process has good performance and high resistance to porosity.
Purpose: It can be used in conjunction with H08A welding wire to weld low carbon steel and certain low alloy steels, and is used for welding metal structures such as locomotives and mining machinery.

Advantages
High production efficiency, high weld quality, manual operation, inherent advantages of stable welding quality, high welding productivity, no arc light and minimal smoke, make it the main welding method in the production of important steel structures such as pressure vessels, pipe sections, and box beams and columns
Application
The product is widely used in marine engineering, nuclear power industry, shipbuilding, boilers, chemical equipment, bridge construction, metal structures, oil pipelines, pressure vessel manufacturing, roll welding, construction industry, etc
Strength
We have 18 technical personnel, a complete quality assurance system and experimental testing capabilities, chemical analysis, welding, mechanical performance laboratories and testing equipment, and close connections and cooperation with multiple universities, research institutes, and research institutes
Technical capability
Having an experienced and strong technical team, constantly exploring and innovating in research and development, ensuring the quality of solder flux, and providing customers with comprehensive after-sales service