Construction

ASTM A242 is a specification for high strength low alloy structural steel pipes used in construction & other applications.

We supply the API 5CT N80 CASING accompanied with thread and coupling, or we offer our product in accordance with the following forms for option.

Weather-resistant ASTM A423 Grade 1 steel pipe, suitable for pressure-containing components such as economizers or other applications requiring corrosion resistance.

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.