Construction

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.

The API 5L product grades include API 5L X65 pipe and heavy wall linepipe covering welded and seamless carbon and galvanized steel pipes.

ASTM A572 GR.42 welded pipe has high strength and good toughness. It is widely used in various structural projects that require welded steel pipes.

A335 P9 seamless pipe is a high performance alloy steel pipe, mainly used in high temperature and high pressure environment.