Round Hole Patter Perforated Steel Pipe For Petrol Textile Powder
Coating
Stainless Steel, unlike carbon steel, is corrosion resistant. It
contains chromium which, when exposed to oxygen, creates an
invisible protective film. Stainless steel types are classified
into three different groups based on their ability to be hardened.
Austenitic stainless steels, which can be hardened by cold working,
meet a wide range of design criteria. They are essentially
non-magnetic, although they may become slightly magnetic due to
cold working.
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.
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
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