API 5L garvanized na a oyi akwa nke zinc n'elu ọkpọkọ. Ọnụnọ nke zinc oyi akwa na-enye ndị na-eguzosi ike na-eguzogide nguzogide. Ngwongwo kemịkal nke zinc na-arụ ọrụ karịa ígwè. Na gburugburu ebe obibi, zinc ga - emexịa tupu ígwè, si otú a na - echebe matriks nchara site na corrosion.
