Technical Info

Useful selection data for stainless steel perforated sheets.

Use these pointers to define the right grade, hole pattern, pitch, open area, sheet size and finish before placing an enquiry.

Open area is the percentage of perforated space in a sheet. Higher open area improves flow and visibility but can reduce rigidity.

Pitch is the centre-to-centre distance between holes. It affects strength, appearance, screening accuracy and airflow.

Thickness should match load, forming, welding, vibration and handling needs. Heavy gauges are preferred for guards and structural panels.

Reference Guide

Ordering details to confirm

Material Grades	SS 304, 304L, 316, 316L, 310, 321, 409, 410 and other grades subject to availability.
Common Standards	ASTM A240 / ASME SA240 for stainless steel plate, sheet and strip; equivalent EN / JIS references can be discussed.
Sheet Size	Common commercial sizes include 1000 x 2000 mm, 1220 x 2440 mm, 1250 x 2500 mm and custom sizes as per feasibility.
Thickness Range	Approx. 0.5 mm to 6 mm depending on material, hole size, open area, pattern and quantity.
Hole Patterns	Round, square, dimple, slotted / capsule, straight row, staggered row and special layouts.
Finish Options	Mill finish, 2B, No. 4, brushed or application-specific finish subject to grade and stock.
Fabrication Notes	Confirm bending direction, welding area, clear margins, dead zones and mounting hole requirements before production.

For filtration, define particle size, flow rate and cleaning method.
For machine guards, consider thickness, pitch, visibility and mounting frame.
For architectural work, confirm finish, viewing distance, panel flatness and edge treatment.
For acoustic or ventilation panels, balance open area with required stiffness.