Galvanized steel pipe
1. Out Diameter: 21.3mm - 350mm
2. Thickness: 0.6mm -20.0mm
3. Steel Grade: Q195-Q345, 10#-45#
4. Standard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTM SCH80
Size of pipes | O.D.:6-760mm |
W.T.:2-80mm | |
Tolerance | OD+1%/-1%,thickness+12.5%/-10%,Length 2mm |
standard | GB8162-1999,GB8163-1999,GB3087-99,GB5310-99,GB6479-86,GB9948-88 |
JIS STPG42/G3454,JIS STPG42/3456,JIS STB42/G3461,JIS STB42/G3455 | |
ASTM A53B,ASTM A106B,ASTM A210A1,ASTM A315B | |
DIN1626,DIN1629/4,DIN1629/3,DIN17175,SEW680,and so on | |
OEM | Special specifications are also supplied according to customers' requirements |
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
