Spiral Submerged Arc Welded Steel Pipe
|
Grade |
Diameter |
Thickness |
Standard |
|
Q235,Q345,St52-3,SS400,
L245-L555, S245-S555, B-X80 |
219-2850mm |
6-28mm |
API-5L, GB/T9711.2-1999,GB/T9711.1-1997, SY/T5037-2000, SY/T5040-2000 |
The application fields of our products are petroleum, coal gas, natural gas, tap water, heating power station, hydropower station, infrastructure construction and chemical industry and also be widely used in pilling, bridge and steel structure.
Specifications:
Outer Diameter: 219mm—2850mm
Wall Thickness: 6mm—28mm
Length: 6—18 meters
End: square ends (straight cut, saw cut, and torch cut) or beveled for welding, beveled
Surface: Lightly oiled, hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coating (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Steel Grade:
API 5L: A B X42,X46, X52, X60, X65, X70, X80
GB/T 9711: L175, L210, L245, L290, L320, L360, L390, L415, L450, L485, L555
SY/T5037 (SY/T5040, CJ/T3022): Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 10F, 10, HG5, DF08 SPHC, M8
Quality Control:
1. Chemical Component Analysis
2. Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation)
3. Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc)
4. Exterior Size Inspection
5. Ultrasonic Continuous Detection
6. Hydrostatic Test
7. X-ray Detection
8. Drop Weight Testing Machine
9. Readable Spectrum Instrument
Quality Standard:
API 5L: Line Pipe
GB/T 9711:Petroleum and natural gas industries—Steel pipe for pipelines
SY/T5037:Spiral submerged arc welded steel pipe for pipelines for low pressure field fluid service
SY/T5040:Spiral submerged arc welded steel pipe piles
CJ/T3022: Spiral submerged arc welded steel pipe for municipal heat supply
