Perforated Steel Roll Forming Material Guide: Coil Sizes, Hole Patterns & Uses

Perforated Steel Roll Forming Material

1. Overview of Perforated Steel in Roll Forming

Perforated steel is sheet or coil that has been punched or laser-cut with a pattern of holes. It is designed for applications requiring ventilation, acoustic control, filtration, or decorative appearance.

In roll forming, perforated steel is widely used for facade panels, ceiling systems, cable trays, shelving, structural components, and ventilation products.

Compared to solid steel, perforated steel offers reduced weight, airflow, and sound absorption properties while maintaining structural integrity.

2. Material Composition & Structure

Perforated steel is typically:

Mild steel
Galvanized steel (GI)
Stainless steel
Pre-painted steel

Structure

Steel base material
Perforation pattern (punched holes)
Optional coating or finish

3. Available Coil Specifications

Thickness Range

0.5mm – 3.0mm

Coil Width

600mm – 1500mm

Coil Weight

3 tons – 10 tons

Coil ID / OD

ID: 508mm / 610mm
OD: up to 1600mm

Tolerance

Reduced strength due to perforation
Requires consistent hole alignment

4. Mechanical Properties

Depends on base material:

Yield Strength: 180 – 350 MPa
Tensile Strength: 300 – 550 MPa
Elongation: 15% – 30%
Hardness: 100 – 180 HB

👉 Note: Strength is reduced due to perforations.

5. Coating Types

Perforated steel may be supplied as:

Galvanized (GI)
Painted (PPGI / PPGL)
Powder coated
Stainless (no coating required)

6. Surface Finishes & Perforation Patterns

Common Hole Types

Round holes
Square holes
Slot holes
Hexagonal holes
Decorative/custom patterns

Key Parameters

Hole diameter
Pitch (spacing)
Open area (%)

7. Common Roll Forming Applications

Architectural façade panels
Acoustic ceiling panels
Cable trays and trunking
Shelving systems
Ventilation panels
Filters and screens

8. Advantages of Perforated Steel

Reduced weight
Airflow and ventilation
Sound absorption
Decorative appearance
Functional versatility
Cost savings in material usage

9. Disadvantages / Limitations

Reduced structural strength
Potential distortion during forming
Edge cracking around holes
Requires precise alignment
More complex processing

10. Roll Forming Machine Considerations

Roll Tooling

Precision tooling required
Must support material during forming

Speed

5–25 m/min

Lubrication

Optional

Cutting

Clean shear or punch system

Common Issues

Hole distortion
Material deformation
Misalignment

11. Common Problems in Production

Hole deformation during forming
Edge cracking near perforations
Uneven profile due to weak areas
Alignment issues
Surface damage around holes

12. Pricing Guide

Typical global pricing:

Low: $700–$1000 per ton
Medium: $1000–$1500 per ton
High: $1500–$2200+ per ton

Factors affecting price:

Hole pattern complexity
Open area percentage
Base material
Coating

13. Comparison with Other Materials

Perforated Steel vs Solid Steel

Perforated = lighter, functional
Solid = stronger

Perforated Steel vs Expanded Metal

Perforated = punched holes
Expanded = stretched mesh

Perforated Steel vs Mesh

Perforated = rigid sheet
Mesh = flexible

14. Best Industries Using Perforated Steel

Architecture and construction
HVAC and ventilation
Industrial manufacturing
Electrical systems (cable trays)
Acoustic design

15. How to Choose Perforated Steel

Choose Perforated Steel When:

Ventilation required
Acoustic performance needed
Decorative design important
Weight reduction desired

Avoid When:

Maximum strength required
Heavy structural applications
Tight forming profiles

16. FAQ Section

What is perforated steel?

Steel sheet with punched holes.

Can perforated steel be roll formed?

Yes, with proper machine setup.

Does perforation reduce strength?

Yes, depending on open area.

What are common hole types?

Round, square, slot, hexagonal.

Is it expensive?

Depends on pattern complexity.

17. Machine Matcher Section

We supply roll forming machines for all material types including perforated steel.

Custom-built machines to your profile
New machines built to specification
Global delivery available
UK and USA technical support

Contact:
Machine Matcher
Sales & Technical Team

Quick Specs

Thickness
0.5–3.0mm

Yield Strength
180–350 MPa

Coil Width
600–1500mm

Coil ID
508 / 610mm