Submerged Arc Spiral Welded Steel Pipes .

Submerged Arc Spiral Welded Steel Pipes We have 5 spiral submerged arc welded steel pipe production lines, hydraulic compression testing machine,computer control universal testing machine and Charpy impact tester,to guarantee the product quality.Because of the strict quality control system,all of our product have passed the test of ¡°certification accreditation administration of petroleum materials of the People¡¯s Republic of china¡±. Specifications Throughput: 400,000 MT Outside Diameter : ¦µ219-¦µ2200mm Wall Thickness : 6-20mm Ouality Standards : API¡¢BS¡¢ASTM ¡¢JIS¡¢DIN¡¢GB ¡¢ISO¡¢DNV Length : 8-12.2m Grades : API 5L A,B,X42-X80 PSL1/PSL2 etc