GB/T 33976-2017 "Corrosion-resistant hot-rolled steel for crude oil tankers" standard specifies the technical requirements, test methods, inspection rules, size, shape, weight and allowable deviation of corrosion-resistant hot-rolled steel for the manufacture of crude oil tankers cargo tanks. The standard is applicable to ensure the corrosion resistance performance of crude oil tankers cargo tanks in harsh marine environments, covering the grade representation, order content, Encasement marks, etc., providing a comprehensive technical basis for manufacturing and inspection, aiming to improve the safety and durability of crude oil tankers cargo tanks.