Company News
The Hidden Factor: Why Flux Grain Size (Mesh) Matters
When selecting a Submerged Arc Welding (SAW) flux, most engineers focus immediately on Basicity Index or alloy content. However, the physical grain size (Mesh Size) of the flux plays a surprisingly critical role in the welding process. At Jinan Gujin Welding Materials Co., Ltd., we offer fluxes i......
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What submerged arc welding flux is used for welding gas storage tanks?
The selection of submerged arc welding flux for welding gas storage tanks mainly depends on the material of the tank, operating temperature, pressure, and specific standard requirements. Gas storage tanks are usually made of materials such as carbon steel, low-alloy steel, or stainless steel, and ar......
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SJ301 is the preferred flux for LSAW steel pipe production.
SJ301 is a silicon-calcium neutral sintered flux (complying with F4A0-H08A in GB/T 12470 standard or AWS A5.17 F6A0-EL12), widely used in longitudinal submerged arc welding (LSAW) for the production of large-diameter and high-strength steel pipes (such as API 5L X70 and X80 pipeline steels). The fol......
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