Mining

GNEE Steel is one of the leading Manufacturers, Supplier and Exporters of high quality ASTM A213 T12 Alloy Steel Seamless Tube.

N08904 super austenitic high alloy steel is mainly used in harsh acidic media and performs best in pure phosphoric acid. It has good corrosion resistance to pitting and crevice corrosion, intergranular corrosion, stress corrosion cracking and general corrosion. sex.

The processing of brazed spiral finned tube is carried out in two steps. First, the steel strip plane perpendicular to the axis of the tube is wound on the outer surface of the tube in a spiral line manner, and the ends of the steel strip are welded to the steel pipe and fixed, and then the steel strip and steel pipe are welded together by brazing in order to eliminate the gap between the steel strip and the steel pipe contact.

ASTM A213/A213M standard, which covers a range of grades of minimum-wall-thickness, seamless, and cold-drawn ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes, including the T9 grade.