Welded Steel Pipe Used for Gas Pipe
welded steel pipe used for gas pipe Petroleum, power, gas, chemical and medical equipment, construction, bridge, power engineering
Welded steel pipe used for gas pipe
Welded Steel Pipe used for gas pipe
5-12mm or as your requirement
ASTM A53,A106,A179-C,Q195,Q235,Q345, DIN17175 St35.8,St33,St42
Petroleum, power, gas, chemical and medical equipment, construction, bridge, power engineering
ASTM ,DIN, GB,JIS,BS
Hot rolled or Cold Drawn
Testing and inspection of the welding procedure for submerged ard welded(SAW) tubes are witnessed and approved in accordance with EN10217-1
Apperance and General:
The weld areas are free from cracks, lack of fusion and lack of penetration
The tubes are free from external surface defects that can be detected by visual examination.
The Tubes shall pass a hydrostatic test or electromagnetic test for leak-tightness
The full length of the weld seam of all EW and BW tubes ahll be subjected to a Non-Destructive test for detection of longitudinal imferfections
The full length of the weld seaml of all SAW tubes shall be subjuected to a Non-Destructive test for the detection of imperfections.
The deviation from straightness, of any tube length L, shall not exceed 0.0015L.
Deviations from Straightness over any one meter length shall not exeed 3mm.
Preparation of ends:
Tubes shall be delivered with square cut ends. The ends shall be free from excessive burrs.