Description
ASTM F1267 – Expanded Metal Specification Overview
ASTM F1267 covers the requirements for expanded metal sheets, produced from carbon steel, galvanized steel, stainless steel, aluminum, titanium, and other ductile materials. The metal is slit and simultaneously stretched into a mesh with diamond- or hexagon-shaped openings without any welding or interweaving.
Key Features of ASTM F1267 Expanded Metal:
- Material Options: Carbon Steel, Galvanized Steel, Stainless Steel, Aluminum, Titanium.
- Types:
- Standard (Raised) Expanded Metal – Features elevated strands and connections..
- Flattened Expanded Metal – Cold-rolled for a smooth surface.
- Open Area: Varies depending on design and mesh size, typically 30%–80%.
- Thickness (Strand Gauge): Defined by the thickness of the original sheet before expansion.
- Mesh Size: Typically measured by the Short Way of Diamond (SWD) and Long Way of Diamond (LWD).
- Applications:
- Walkways, stair treads, fencing, and security screens
- Ventilation, filtration, and reinforcement materials
- Architectural facades and cladding
Benefits:
- High strength-to-weight ratio
- Non-slip surface (especially in raised form)
- Excellent airflow and visibility
- Durable and corrosion-resistant (especially with stainless steel or coated finishes)
- Cost-effective alternative to perforated or woven mesh
Common Applications:
- Industrial platforms and walkways
- Security enclosures and machine guards
- Architectural panels and sunshades
- Support materials for filters and insulation
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