Galvanised Sheet Metal Properties

In developed countries most larger cities have several galvanizing factories and many items of steel manufacture are galvanized for protection.

Galvanised sheet metal properties.

1 t bends in many of the steels were embrittled by galvanizing but galvanized 2 t and 3 t bends in all steels could be completely straightened. It is the maximum stress that the sheet metal material is subjected to before pulling out. Thus the tensile strength proof strength and tensile elongation of cold rolled steel were unaffected except that the tensile elongation of 40 cold rolled steel tended to be increased by galvanizing. N mm2 or mpa the symbol is σb.

According to the american galvanizers association galvanized steel resists corrosion up to 100 times better than uncoated steel. This is the most common use for galvanized metal and hundreds of thousands of tons of steel products are galvanized annually worldwide. The top countries of supplier is china from which the. Of these materials the corrosion protection of steel is most challenging even if iron is more noble than zinc or aluminum 2 fig.

1 shows a schematic of the corrosion process on iron along with the possible half cell reactions depending on the type of environment 12. It is the maximum stress that the cross section is subjected to when the load is applied between the two points of the specimen.