NKK Corp. of Japan has formulated a new type of steel pipe containing one percent chromium, offering exceptional corrosion and wear resistance and weldability for use as cargo oil pipes on oil tankers.
According to an NKK spokesman, advantages of the new product called NK-Marine Cop include: easy on-site welding without pre-heat treatment resulting from low carbon base steel, lowered construction and maintenance costs, and availability from small diameter seamless to large diameter welded pipes.