316L Stainless Steel slotted hole perforated sheet combines the construction of slotted hole perforated sheet (DIN 24041 (Lg)) with the properties of AISI 316L (1.4404): superior resistance, including chlorides, brines, food CIP and mild acids, essentially non-magnetic, service to approx. +550 °C continuous. This page summarizes the grade data, its behavior in filtration service, comparable alloys, and the specifications supplied.
Why Choose 316L Stainless Steel for Slotted Hole Perforated Sheet
The default filtration and process-industry grade. For slotted hole perforated sheet, this matters when superior resistance, including chlorides, brines, food CIP and mild acids is the controlling requirement.
Alloy Properties
| Grade designation | AISI 316L (1.4404) |
|---|---|
| Magnetic response | Essentially non-magnetic |
| Service temperature | approx. +550 °C continuous |
| Corrosion characteristic | Superior resistance, including chlorides, brines, food CIP and mild acids |
Cleaning & Compatibility
Stainless slotted hole perforated sheet can be cleaned by backflush, ultrasonic bath, steam and most CIP chemistry. Two cautions: (1) avoid extended contact with hydrochloric acid or hypochlorite sanitizers, which pit even 316; (2) where the mesh contacts carbon steel during fabrication or service, iron pick-up can rust-stain the surface — specify passivation after fabrication.
Comparable Alloys
Below 316L sits 304 (general purpose, lower cost). Above it: duplex 2205 (strength + chloride resistance), 904L and Hastelloy C-276 (hot chlorides, sulfuric), Monel 400 (HF, seawater), titanium (chlorides at minimum weight) for slotted hole perforated sheet.
Specifications of Slotted Hole Perforated Sheet Available in 316L Stainless Steel
| Slot width (mm) | Slot length (mm) | Bridge (mm) | Open area (%) | Thickness (mm) | Reference standard |
|---|---|---|---|---|---|
| 0.5 | 10 | 1.0 | 28 | 0.8 | DIN 24041 |
| 1.0 | 12 | 1.5 | 33 | 1.0 | DIN 24041 |
| 1.5 | 20 | 2.0 | 38 | 1.2 | DIN 24041 |
| 2.0 | 20 | 2.5 | 40 | 1.5 | DIN 24041 |
| 3.0 | 25 | 3.0 | 43 | 2.0 | DIN 24041 |
| 5.0 | 40 | 4.0 | 45 | 2.0 | DIN 24041 |
Where 316L Stainless Steel Slotted Hole Perforated Sheet Is Used
- Grain & seed handling: dryer floors, aeration floors and sorting screens.
- Mining & aggregate: dewatering screens and sizing panels.
- Food processing: vegetable washers, blanchers and draining conveyors.
- HVAC & architecture: linear vent panels and sunscreens.
Ordering Slotted Hole Perforated Sheet in 316L Stainless Steel
- Slot size: Width × length, e.g. 1 × 10 mm; the width controls retention.
- Pattern: Staggered slots for strength, straight rows for maximum open area.
- Orientation: State whether slots run along or across the material flow.
Mistakes to Avoid with Slotted Hole Perforated Sheet
- Turning the sheet 90° in fabrication, so the slots face the wrong way.
- Choosing a sheet thinner than the slot width, which tears around the ends.
