Tin cans and buckets do survive fresh water inundation. Entering the archeological record in the first quarter of the 19th century, tin containers are often recovered intact from anaerobic fresh water environments. Tin containers are invariably sealed with solder and therefore should not be subjected to heat treatments of any kind. Lead is an easily worked heavy metal with a very low melting point. It is also used in pure form to produce some ship fittings such as scupper liners.
Lead shot is used for firearms and fishing net weights.
Lead sheeting was also used experimentally to combat hull fouling on wooden vessels. Lead is generally found in good condition with an electrically passive outer layer of lead sulfate. Anaerobic lead artifacts are protected by lead sulphide but corrode at twice the rate of aerobic lead. It became popular in kitchen ware such as plates, mugs, and utensils. Britannia metal consists of tin, antimony, and copper.