GI perforated sheets are made by slitting and stretching a metal sheet to create a range of opening patterns. Standard and flattened styles are available. Flattened expanded metal receives an additional cold-rolling process to create a smoother surface.
The expanded-metal process uses a single sheet without producing the cut-out scrap associated with conventional punching. Depending on the product and project requirements, materials may include aluminium, stainless steel and carbon steel, as well as copper- or brass-coated options.
Applications include interior and exterior wall decoration, ceilings and curtains, as well as chimney caps, filters and artistic projects. Strong, suitably specified sheets can also be used for oil-tank step mesh, working platforms and walkways around heavy equipment.
GI perforated and expanded metal products are available in different patterns and finishes.
GI perforated and expanded metal products offer a range of styles and material options for decorative, filtration and industrial applications.
Choose standard expanded metal or a flattened style with a smoother surface from cold rolling.
The slitting-and-stretching method forms openings from a single sheet without creating punched-out scrap.
Suitable for a range of interior and exterior architectural features, including walls and ceilings.
Appropriately specified products can be used for platforms, walkways and equipment access areas.
Options listed include aluminium, stainless steel, carbon steel and copper- or brass-coated materials.
Use cases include filters, chimney caps, decorative features and industrial mesh applications.
The following options are based on the supplied product information. Confirm product form, dimensions, material availability and applicable standards when requesting a quotation.
| Standards | ASTM, ASME and API |
|---|---|
| Product Styles | Standard and flattened expanded metal styles |
| Opening Types | Round, hexagonal, square and rectangular perforated sheet options; expanded metal patterns may vary |
| Surface Treatments | PVC coated, powder coated and anodized |
| Colors | Silver, red, yellow, black, white and other options |
| Thickness | 0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.35 mm and 0.40 mm |
| Width | Confirm available width range with the supplier |
| Materials | Aluminium, stainless steel, carbon steel, and copper- or brass-coated options |
| Hardness | Soft, hard, half hard, quarter hard and spring hard |
| Finishes | Standard or flattened expanded metal; surface treatment options subject to material and product |
The following material grades were included in the supplied product information. Confirm applicability and availability for the selected product form and dimensions.
ASTM A240 / ASME SA240; grades 304, 304L, 304H, 316, 316L, 316LN, 316Ti, 309, 310S, 317L, 321, 347, 409, 410, 420, 430, 446 and 202.
ASTM A515 Grades 60 and 70; ASTM A516 Grades 60 and 70; ASTM A537 Class 1 and Class 2.
ASTM / ASME A/SA 387 Grades F5, F9, F11, F12, F22 and F91.
ASTM A240 / ASME SA240 and ASTM A182 F51; UNS S31803, S32205, F53, F55, S32550, S32750, S32760, 2205 and 2507.
ASTM / ASME SB 162 UNS 2200 and UNS 2201; SB 127 UNS 4400; SB 168 UNS 6600 and UNS 6601; SB 443 UNS 6625; SB 424 UNS 8825; SB 574 UNS 10276; and SB 462 UNS 8020.
The supplied product information describes decorative, filtration and industrial applications. Confirm the product’s suitability for the intended service conditions.
Include the product style, material, dimensions and application in your enquiry to help confirm the appropriate available options.
Specify whether you require standard expanded metal or a flattened product with a smoother surface.
Share your preferred material and surface treatment. Confirm coating and finish compatibility for your application.
Provide required thickness, width, opening pattern and quantity for availability review.
Describe whether the sheet is intended for decoration, filtration, a platform, a walkway or another use so suitability can be assessed.
Share your requirements, dimensions, material, finish, quantity, or project details with APEX ALLOYS INDIA. Our team will assist you with the right solution and quotation.
