
Steel Shell: Typically made of low-carbon steel rolled and welded to meet standards such as AS/NZS 1579 or ASTM A53. It determines the pipe's pressure rating.
Internal Lining: Made of cement mortar. The mortar is evenly distributed on the inner wall of the pipe using a centrifugal spraying process. The contact between cement and steel creates a highly alkaline.
environment (pH approximately 12-13), forming a passivation film on the steel surface, thus preventing corrosion.
External Coating: To prevent rust on the steel casing, the following coatings are typically applied: Bitumen, Epoxy, Sintakote (commonly used in Australian standards).
Connection Methods:
Welded joints, flanged joints, rubber ring joints.
