1000mm Large Diameter Api 5l X70 Schedule 40 Spiral Welded Black Steel Pipe

Xinyue has invested several production bases in Tianjin,hebei and shandong Province, manufacturing ERW Steel Pipe,LSAW Steel pipe,SSAW STEEL PIPE, Seamless Steel Pipe,OCTG Tubing& Casing,Drill Pipe,SSAW Steel pipe,Hollow Section Tube,Scaffolding and couplers.

Our factory has large stock of steel pipe, galvanized steel pipe, square rectangular steel pipe, seamless steel pipe, spiral steel pipe etc, we can provide different size steel pipe, can do fast delivery.

Advantages of spiral welded pipe:

(1) Steel pipes of different diameters can be produced using strip steel of the same width, and

steel pipes of large diameter can be produced from narrow strip steel.

(2) Under the same pressure conditions, the stress of the

spiral welded seam is smaller than that of the straight seam, which is 75% to 90% of that of the straight seam welded pipe, so it can withstand greater pressure. Compared with the straight seam welded pipe of the same outer diameter, the wall thickness can be reduced by 10% to 25% under the same pressure.

(3) The size is accurate, the general diameter tolerance does not exceed 0.12%, the deflection is less than 1/2000, and the ovality is less than 1%. Generally, the sizing and straightening process can be omitted.

(4) Continuous production is possible. In theory, long steel pipes can be produced, with small head and tail loss, and can

increase the metal utilization rate by 6% to 8%.

(5) The equipment is light in weight and low initial investment. It can be made into a trailer-type mobile unit to directly produce welded pipes at the construction site where the pipeline is laid.

Application:

1.for manufacture of pipeline,vessels,equipment,pipe fittings and steel structures

2.for conveying gas,water and oil in both the oil and natural gas industries

3.for manufacturer wall panel,ecomomizer,reheater,superheater and

4.steam pipeline of boilers.

5.for conveying oil,gas and other fluid