Natural Gas

‌ASTM A691 2-1/4Cr Grade Steel Pipe‌ is an electric fusion welded steel pipe specially designed for high temperature and high pressure conditions.

ASTM A334 is a standard specification that covers several grades of seamless and welded carbon and alloy-steel tubes intended for low-temperature service. The grades include Gr1, Gr3, and Gr6.

The production process of DIN 1629 steel pipe supplied by GNEE includes heating of pipe billet, piercing, three-roller cross rolling or continuous rolling, tube stripping, sizing (or reducing), cooling, straightening, hydrostatic test (or flaw detection), marking and warehousing.

ASTM A588 steel pipe is a commonly used high-strength low-alloy structural steel that is widely used in construction, bridges, vehicles and other fields.