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
