Spiral welded steel pipe

Spiral welded steel pipe 1)material:10# 20# 45# Q235 Q345 2)standard:GB 3)usage:conveying fluid,gas and so on

Spiral welded steel pipe

1. Out Diameter: 219mm - 3000mm

2. Thickness: 6mm -30mm

3. Steel Grade: Q195-Q345, 10#-45#

4. Standard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTM SCH80

 Process

1. Book Review: The coil forming all the pressure level

2. Welding: welding together the forming of sheet

3. Delivery: Delivery to the sheet forming machine

4. Forming: Tube Forming

5. Ultrasonic testing: the forming of the pipe by ultrasonic testing, will pick up the defective pipe

6. Cutting: The different lengths of pipe cut to length

7. Flat: tube ends debarring to smooth pipe end

8. Pressure test: The forming of the pipe by water pressure test, pressure test tube capacity

9. The ultimate test: Check whether the defective pipe surface

10. Standard spray: spray tube identification, production standards, specifications

11. Warehousing: storage weight

12. Usage:Widely used in the deliveryof petroleum, natural gas, water, coal gas and confined long-term transportation pipeline, and in engineering, such as chemical indusry,electricity irrigation, etc.

Spiral welded steel pipe