Spiral steel pipe (SSAW/SAWH), also known as spiral welded pipe

All welds are inspected by an online continuous ultrasonic automatic flaw detector to ensure a non-destructive testing coverage rate of 100% for spiral welds. If there is a defect, it will automatically sound an alarm and spray a mark, and production workers can adjust the process parameters accordingly at any time to eliminate the defect in a timely manner.

Pipeline coating is the most consistent and successful solution for protecting steel pipes from corrosion, moisture, and other harmful chemicals.

The basic physical principle of bacterial corrosion prevention is to protect the surface of steel pipes from electrochemical corrosion by soil media. Methods and basic mechanical protection of structures to resist creep stress, static stress, and wear force of soil media.

​SSAW steel pipe的意思是：螺旋埋弧焊管是螺旋埋弧焊钢管的缩写，广泛应用于石油、天然气、水、煤气等长输管道项目。

Specifications规格：外径Outer Diameter（OD）：厚度Thickness（THK）：

GB/T9711, GB/T3091, SY/T5040, GB/T5037-2001, GB/T5040, ASTM A53, API 5L, EN10217, etc等.

Q195, Q235B, Q295, Q345, L210, L245, L290, X42, Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70, S235, S235JR, S35G2H, S275, S275JR, S355JRH, S355J2H, ST37, ST44, ST52, and more等.

Black paint, clear coat or 3PE/FBE/3PP coating shall be used for internal and external anti-corrosion (surface treatment) of steel pipes, or anti-corrosion (surface treatment) shall be carried out according to the special requirements of the buyer.

X-ray（X射线）, ultrasonic（超声波）, hydrostatic（静水压）, etc等.