Both 304 and 304L stainless steel plates contain 18% chromium and 8% nickel, with the latter having a carbon content of ≤ 0.03%. After welding, they have better resistance to intergranular corrosion and are suitable for food processing equipment and chemical containers. Both have both oxidation resistance and molding convenience.
Due to its low-carbon characteristics, 304L stainless steel can avoid the precipitation of carbides during high-temperature welding and is suitable for long-term high-temperature environments; 304 stainless steel has strong universality and is widely used in building structures and daily corrosion-resistant components, with outstanding cost-effectiveness.
The selection of 304 / 304L stainless steel materials should be based on the corrosiveness and cost of the medium: 304L is preferred in harsh environments, while 304 steel can be selected for conventional scenarios. It is recommended to use laser cutting or cold rolling during processing, and acid washing treatment can enhance the surface corrosion resistance.
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