Designation: Sn-Bi
Synonyms: tin coating, tinning, tin plating
Price: from 10 rub. per dm2
Purpose: Tin coating is used to prevent direct contact of stainless steel with aluminum and copper (undesirable galvanic couple), to facilitate the running-in of parts, to seal threaded contacts and to ensure solderability. Adding bismuth to the coating allows you to maintain solderability for up to 1 year, slow down the transition of the plastic white modification of tin to powder gray, and eliminate needle formation during storage.
