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Perforated Stainless Steel Sheet – Best Solutions to Moisture Applications

Perforated stainless steel sheet is mainly made of 304 or 316 stainless steel sheet which is punched with a variety of hole patterns, including round, square, slot, diamond or your nominated hole shapes. The perforated stainless steel sheets we manufactured come with high quality and can be used in various circumstances.

A perforated stainless steel sheets with round holes
PSSS-1: Perforated stainless steel sheet

For the average person, stainless steel may seem just like traditional carbon steel, but the actual state of the affair is the material is more complicated which makes it anti-corrosive for usages in moist and humid environments. So there is no need of painting and coating for rust and corrosion resistance any more. Perforated stainless steel sheet is suitable used for sunshade panels for high building and leisure place.

Three material types of perforated stainless steel sheets:

According to the crystalline structure of perforated stainless steel, it can be classified into three types: Austenitic, Ferritic and Martensitic.

Austenitic steel, containing high content of chromium and nickel, is the most corrosion resistant steel providing incomparable mechanical properties, thereby, it becomes the most common type of alloy, accounting for up to 70% of all stainless steel production. It is non-magnetic, non-heat-treatable but it can be successfully welded, formed, meanwhile being hardened by cold-working.

  • Type 304, composed of iron, 18 - 20% chromium and 8 - 10% nickel; is the most common grade of austenitic. It is weldable, machinable for various applications, except in salt water environments.
  • Type 316 is made of iron, 16 - 18% chromium and 11 - 14% nickel. Compared to type 304, it has better corrosion resistance and yield strength with similar weldability and machinability.

Ferritic steel is straight chromium steel without nickel. When it comes to corrosion resistance, the ferritic is better than martensitic grades but inferior to austenitic stainless steel. It is magnetic and oxidation resistant, additionally; it has perfect working performance in marine environments. But it cannot be hardened or strength by heat treatment.

  • Type 430 features high resistance to corrosion from nitric acid, sulfur gases, organic and food acid, etc.
Piles of heavy duty perforated stainless steel sheets with diamond holes
PSSS-2: Heavy duty perforated stainless steel sheets

Martensitic steel, same as Ferritic steel, is chromium steel with no nickel. It is magnetic and heat-treatable. It features the highest hardness among all stainless steel products for applications where hardness, strength and wear resistance are required due to higher levels of carbon.

  • Type 410 contains lowest alloy content when comparing to other martensitic steel.


  • Hole shape: round, square & rectangular, slot, hexagon, oblong, diamond and other decorative shapes.
  • Sheet size:1ft. × 4ft., 2ft. × 4ft., 4ft. × 4ft., 4ft. × 8ft., or tailored to your desired size.
  • Thickness: gauge 3 to 36 or as your requirement.
  • Material: 304, 316, 430, 410, 301, 302, 303, 321, 347, 416, 420, 430, 440, etc. Other standards materials are also available as your requirements.

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Boegger Industech Limited

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