Slotted Stainless Steel 316 Perforated Sheet 20 Gauge 1/4" × 1-1/2" Slot

SS 316 Slotted Perforated Sheet 20 Gauge is a corrosion-resistant sheet metal popularly used ventilation panels and marine drainage. Manufactured from AISI 316 stainless steel, this kind of slotted sheet metal offers exceptional resistance to pitting, rust and chemical attack in marine, food-grade and industrial uses.

Common slot sizes for 20 gauge slotted sheets:
1/4" × 1-1/2" (6.4 × 38 mm)
1/8" × 3/4" (3.2 × 19 mm)
3/16" × 1" (4.8 × 25 mm)


Open Area: 25%, 40%, 65%

Uses:
Slotted SS 316 Perforated Sheet 20 Gauge is mainly used for ventilation grille, liquid and air filtration, drainage covers, acoustic panels and architectural facades.

Slotted Stainless Steel 316 Perforated Sheet -20 Gauge-1/4 inch × 1-1/2 inch Slot

Material: AISI 316 Stainless Steel
Sheet Size: 4 inches (Height) × 48 inches (Width)
Thickness: 20 Gauge (0.036 inch / 0.9 mm)
Slot Size: 1/4 inch × 1-1/2 inch (6.350 × 38.100 mm)
Bridge Widths:
Regular Bridges: 2.381 mm
Every Third Bridge: 4.763 mm
Open Area: 67%
Slot Orientation: Slots run along the width of the sheet
Pattern Type: Straight row slotted perforation
Surface Finish: Smooth, deburred edges
Major Uses: Ventilation grilles, filter panels, facade cladding, machine guards, HVAC ducts, marine equipment, industrial drying trays

Slotted Stainless Steel 316 Perforated Sheet – 20 Gauge – 1/8 inch × 3/4 inch Slot
Material: AISI 316 Stainless Steel
Sheet Size: 4 in (H) × 48 in (W)
Thickness: 20 Gauge (0.036 in / 0.9 mm)
Slot Size: 1/8 in × 3/4 in (3.175 × 19.050 mm)
Bridge Widths: Regular Bridges – 1.5 mm; Every Third Bridge – 3.0 mm (typical)
Open Area: Approximately 42–45 %
Slot Orientation: Slots run widthwise
Pattern Type: Straight slot arrangement
Surface Finish: Bright annealed and deburred
Major Uses: Air and liquid filtration, protective guards for electronic devices, acoustic panels, architectural cladding

Slotted Stainless Steel 316 Perforated Sheet – 20 Gauge – 3/16 inch × 1 inch Slot
Material: AISI 316 Stainless Steel
Sheet Size: 4 in (H) × 48 in (W)
Thickness: 20 Gauge (0.036 in / 0.9 mm)
Slot Size: 3/16 in × 1 in (4.763 × 25.400 mm)
Bridge Widths: Regular Bridges – 2.0 mm; Every Third Bridge – 4.0 mm (approx.)
Open Area: Approximately 55–60 %
Slot Orientation: Slots run along the width direction
Pattern Type: Staggered row slotted
Surface Finish: Brushed or polished surface
Major Uses: Industrial screens, drainage trays, airflow ducts, decorative ceilings, equipment vent covers