How is pressure drop across the sheet calculated?

There are several factors that need to be considered when determining the pressure drop across the perforated sheet, these are: The viscosity of the liquid that is passing the sheet The flowrate of the liquid that is passing the sheet The open area of the perforated sheet

stainless steel perforated sheets product 4

stainless steel perforated sheets product 1

In stock

Parent Code: SSPS

Perforated Sheets

Stainless Steel Perforated Sheets offer an unparalleled combination of long-term performance, minimal maintenance and strength, making them the ideal choice for both industrial and architectural applications.

They are manufactured by punching or perforating stainless steel sheets.

Common Applications

Perforated metal sheets are used extensively for both industrial and architectural applications:

Industry for sieving
Industry for protection & ventilation
Architecture for function and appearance both internally and externally including:
- Energy saving benefits, sound control and lighting effects

SSWM Stocked Perforated Sheet Range

We stock over 40 stainless steel round hole perforated sheet specifications in 2000x1000mm and 2500x1250mm sheets

Quality Assured & Tested

Same Day Despatch

Australia's Largest Stockist

Length x Width

2000 x 1000 mm

Holes

Round End Slot
r (slot width): 2.5mm
l (slot length): 25mm

Pitch

Reactangular
u1 (vertical): 5.6mm
u2 (horizontal): 29mm

Thickness

1.2 mm

Percentage Open

37 %

Grade

304

Finish

Mill also known as off the machine

Still have questions?

Stainless Steel PERFORATED SHEETS

General Purpose

2000 x 1000mm & 2500 x 1250mm Sheets

	PARENT CODE	HOLE ROUND MM	PITCH TRIANGULAR MM	THICKNESS MM	APPROX % OPEN	TECHNICAL DATA SHEET	REQUEST A QUOTE

Note: To prevent damage while in transit all stainless steel welded panels will be delivered on a non-returnable skid.

Chemical Standard

ASTM E527 – 16 Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

ISO 15510:2014 Stainless steels – Chemical Composition

Material Standard

ASTM E140 Standard Hardness Conversion Tables for Metals

ASTM A480/A480M-22a Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM A240/A240M Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A262 Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

Mechanical Properties & Dimensions

DIN 24041 Standard Specification by German Institute for Standardisation – Perforated Plate Dimensions

ISO 7806 Standard Specification for Industrial Plate Screens (Perforations)

Certification Standard

EN 10204-3.2 Independent Assurance of a Material’s Properties

Quality Assurance System

DGR-0036-QS-W
09/2002/MUC

No calculator available.

We carry the two most common size sheets of 2,000mm x 1,000mm and 2,500mm x 1,250mm these sheets can be used in a variety of different applications. Typically, the large sheet sizes are used in architectural settings due to their height. All sheets can be easily cut along with being used in the fabrication industry for sieves and filters.

There are several factors that need to be considered when determining the pressure drop across the perforated sheet, these are:

The viscosity of the liquid that is passing the sheet
The flowrate of the liquid that is passing the sheet
The open area of the perforated sheet

The open area for perforated sheets depends on the hole shape and the arrangement (pitch). The open area is often lower than woven wires and ranges from 19 to 63%. These materials are used where the pressure drop is a secondary consideration, and the sieving/separation is the primary consideration.

The most common way of cutting the sheets is using laser cutting or high-pressure water cutting. These give a smooth clean finish that make it simple to add a supporting edge on the outside of the disc. 304 and 316 grades of stainless steel have very good Formability (8/10) and Weldability (8/10) meaning it is easy to use to make durable products.

Essentially, it’s the same sort of processes as the woven mesh except where it needs to keep its shape. Examples of these are typically tea strainers or coffee filters that use small holes in sheets to separate solids from liquids. Perforated Sheet is referenced as a material to protect against embers in the Australian Standard AS 3959 Construction in a Bushfire Prone Area. To achieve the standard of 2.0mm opening, the open area is between 19 and 40% which makes its use as a window screen often impractical compared to products that have a much larger open area like our product Bushfire Mesh – TOUGH Shield (62% Open Area).

Because the sheet is one piece (and not multiple wires) it will hold its form. Due to the way the holes are punched, it will not have the same amount of Open Area. As the sheet is smooth, it will be easier to clean and the tolerances on the holes will be better than the wire. depending on your application, you can have perforated sheet from 0.4mm to 3.0mm thick. The thicker the sheet will result in a stronger perforated sheet. Because it is Stainless steel you will still get the same durability properties as wire mesh, including hardness, strength and corrosion resistance.

Holes are normally arranged in a set sequence to provide a certain characteristic. These can be in a variety of different layouts and the function of the sheet will determine the arrangements. When deciding on the hole configuration you need to consider the size of the hole and the distance between the holes (pitch). We are then able to calculate the open area which will help you calculate the pressure drop. In most cases the holes are simply to allow the product to be separated from a liquid.

SSWM stock over 30 different sizes in hole, pitch and thickness across two different grades (304 & 316) with two standard sheet sizes. This means we have 45 different SKUs for you to find the right product for your application. Our products are “Mill Finish” which means they have not had any other surface treatment. This allows you to select the SKU you require and allow you to select the surface treatment that is right for your application.

These sheets can be used for a number of applications. Because of Stainless Steels unique properties, it can be used in many applications where it is exposed to different environments. It can be used inside & outside, within food processing equipment and at high & low temperatures. Because the product is a sheet, it can be easily fabricated into different shapes and will keep its dimensions. The product is most commonly used to “hold” material and therefore acts like a filter or sieve. It is often used in an architectural setting where it comes into contact with the general public. Stainless Steel Perforated sheets are often used in applications where the product can be exposed to fire such as rubbish bins and bus shelters.

This is a flat sheet of stainless steel that has been punched with holes. The punching and stamping can be completed either on a “turret” or a “gantry” machine. The holes can come in many shapes or sizes and can be used for a number of applications. SSWM’s perforated sheet is made in Europe to the highest of European Standards. These standards include the German Standard DIN 24041 Perforated Plate Dimensions and the ISO standard ISO 7806 for industrial plate screens (perforations).

We have a datasheet for each product item, these include a to-scale image, specifications, dimensions and weights. These are found on the website in the far right column of the product tables. We also include a link to the relevant datasheet in all quotes, proformas and invoices.

WELDED MESH

5 lineal metres and increments of 5 lineal metres

WOVEN MESH

1245mm wide – 2 lineal metres and increments of 1 lineal metre 1550mm wide – 10 lineal metres and increments of 10 lineal metres 1830mm wide – 10 lineal metres and increments of 10 lineal metres

If we receive your order before 9am, it will be dispatched on same day.

Absolutely, we welcome you to use your own freight company.

We accept payment via PayPal or direct deposit EFT. We have a strict policy of not taking credit card details over the phone

No. We only cut across the width of the roll once. To enable speed to market, we have all specifications in pre-cut 2 m rolls in 1245mm wide and 10m rolls in widths above 1550mm, which are ready to be dispatched upon order.

Please place your woven wire orders that require cutting by 11am for same day cut and pickup by 2.30pm

Please do, to enable us to assist you with your enquiry and requirements without distractions.

Our opening hours are 8.30am – 3.30pm Monday to Friday

Our stocked size for stainless steel welded panels is 1200 x 2400mm However, for large volumes, panels can be custom-made

On a double skid for interstate and country deliveries, no double skid is usually required for local deliveries or local pickups.

Yes, please either send or bring your mesh in for identification. If emailing a photo, please ensure it is against a ruler, so we can identify the mesh count and wire diameter.

Yes, as our name suggests, we sell only Stainless Steel Wire & Mesh.

Relevant Products

Round End Slot Perforated Sheets

Parent Code: SSPS

Stainless steel round end slot perforated sheet offers a clean, modern slot…

Non-Slip Safety Perforated Sheets

Parent Code: SSPS

Stainless Steel Raised Round Flanged Perforated Sheet, also known as Non Slip…

Why Choose SSWM

Same Day Despatch

Quality assured & tested

Australia's largest stockist of stainless steel wire & mesh

Design & install considerations

Low maintenance material

COMPLIMENTARY PRODUCT CONSULTATION

Speak with a product expert regarding your project

SAME DAY DESPATCH
when your order is received
by 9am for Australia wide delivery

TRUSTED BY 1000+
BUSINESSES AROUND AUSTRALIA

We’ve been supporting local manufacturing and infrastructure projects for over 20 years.

I started dealing with SSWM in 2019 and have always found them to be informative, trusting and dependable suppliers. Many times Sam has gone out of his way to make sure we receive the product on time and have found SSWM’s attitude professional and always wanting to help out.

Convoluted Technologies Pty Ltd

Michael Burgess

Remarkable company to deal with. Order updates were excellent, and everything went as planned from the start. The team was cheerful and knowledgeable, and they had the products we needed. Supply lead times exceeded expectations. Highly recommended.

Stratco

Ross Ewings

We have been dealing with SSWM for over 9 years. SSWM stock holding is always reliable and ready for us to pick up that day! We have a great strategic relationship and value the referrals that we receive from SSWM.

PPT Engineering Pty Ltd

Paul Jeffery

We are a family business and we love dealing with another family business- SSWM. Andrew Greer likes to tell me “we can dance on our feet” and it’s very true SSWM are incredibly responsive, with a great range and are very customer focused.

Morgana & Sons Pty Ltd

Ben Morgana

We recently renovated a rural property and installed Stainless Steel Bushfire Mesh. The SSWM team were a pleasure to deal with helpful and efficient. We now have a fantastic product installed and I would have no hesitations in recommending SSWM.

ROOF SAFETY

WINDOW AND DOOR

FIXTURES & FITTINGS

PERFORATED

ROOF SAFETY

WINDOW AND DOOR

ARCHITECTURAL

FIXTURES & FITTINGS

Parent Code: SSPS

Perforated Sheets

Common Applications

SSWM Stocked Perforated Sheet Range

Quality Assured & Tested

Same Day Despatch

Australia's Largest Stockist

Length x Width

Holes

Pitch

Thickness

Percentage Open

Grade

Finish

Still have questions?

<img loading="lazy" class="alignleft wp-image-16400" src="https://www.sswm.com.au/wp-content/uploads/2020/10/grid-icon-perforated-sheet.png" alt="" width="50" height="50" />Stainless Steel PERFORATED SHEETS

WELDED MESH

WOVEN MESH

Relevant Products

Parent Code: SSPS

Parent Code: SSPS

Why Choose SSWM

Same Day Despatch

Quality assured & tested

Australia's largest stockist of stainless steel wire & mesh

Design & install considerations

Low maintenance material

COMPLIMENTARY PRODUCT CONSULTATION

Speak with a product expert regarding your project

SAME DAY DESPATCH when your order is receivedby 9am for Australia wide delivery

SAME DAY DESPATCH when your order is receivedby 9am for Australia wide delivery

TRUSTED BY 1000+ BUSINESSES AROUND AUSTRALIA

Convoluted Technologies Pty Ltd

Michael Burgess

Stratco

Ross Ewings

PPT Engineering Pty Ltd

Paul Jeffery

Morgana & Sons Pty Ltd

Ben Morgana

John Newman Morris

Residential Bushfire Mesh

Plan Ahead: SSWM Holiday Closure Notice 2025-26

General Enquiry

Request a Quote

Request a Quote

Your Details

Product

Intended Use

Parent Code

Quantity

Delivery Details for Quoting

REQUEST A QUOTE

Quote information

Stainless Steel PERFORATED SHEETS

SAME DAY DESPATCH
when your order is received
by 9am for Australia wide delivery

SAME DAY DESPATCH
when your order is received
by 9am for Australia wide delivery

TRUSTED BY 1000+
BUSINESSES AROUND AUSTRALIA