Staggered Pattern Perforated Stainless Pipe , Carbon Steel Perforated Muffler Tubing

Because carbon steel is susceptible to corrosion, it is typically used in either unexposed applications or protected with a coating. Coatings such as paint and powder are applied after perforating and completely protect the material. Zinc based coated metals (i.e. Galvanized, Galvannealed, etc.) on the other hand, are produced and supplied as such from the mill and may not completely protect the material where its carbon core is exposed during the perforating process.

Commonly Perforated Carbon Steel Types
Commercial Steel (HR, CR, GALV) A low cost steel that has good drawing, forming, and welding qualities, moderate strength, but is subject to strains, fluting, and breaks due to aging. To reduce the affects caused by aging, Drawing Steel is recommended.

Drawing Steel (HR, CR)
A steel with a greater degree of ductility and uniformity of properties than Commercial Steel providing improved performance during manufacturing. This type is recommended for use when stretcher strains or fluting during fabrication are objectionable and/or consistency of performance is important.

Perforation pattern usually is round holes, there is straight line holes and staggered line holes, different open area need different diameter center distance. 15%-33% open area is common configuration. Formulas for your reference

A: 60° perforation pattern or staggered pattern: hole diameter * hole diameter*90.69% / hole center distance * hole center distance

B: 180° perforation pattern or straight pattern: hole diameter * hole diameter * 78.5% / horizontal diameter center distance * vertical diameter center distance

C: Other special cases as follows

Spiral Welded Steel Perforated Pipe High Quality with Attractive Price is offered by Forward Filter, when become our important customer with good quantity business, special quotation is available.

Forward Filter is a factory with more than 10 years’ experience producing Stainless Steel Spiral Welded Perforated Tube in Petrolium Filtration with High Pressure. Our material is higher quality than normal level of other factories and we offered many big brand machinery companies in our domestic market and abroad market

Stainless Steel Spiral Welded Perforated Tube is applied in many industries area like petroleum refining filtration or oil producing filtration, hydraulic filtration, food filtration producing, drainage system, Light decoration, Vehicle Exhausts or Acoustical Dampening products.

Besides Stainless steel, we also can use other materials like galvanized steel , carbon steel and other alloy.

Perforation hole pattern is variety, which can be round, square and blinds

As for the seam style, we usually use spiral formed, if you have more than one hundred thousand meters require, we can accept custom-made.