Yunde Metals is an expanded metal supplier of versatile and economical expanded metal that is made from a high-quality metal sheet. Our expanded metal sheet is available in many sizes, openings, and material types.Yunde Metals offers expanded metal materials such as aluminum, carbon steel, galvanized steel or stainless steel. This metal sheet is uniformly slit and stretched, forming diamond-shaped openings in the sheet that allow for the passage of light, air, heat, and sound. The strands and bonds of the diamonds in the sheet add strength and rigidity.

Flattened expanded metal is cold rolled through a machine that flattens the metal after the expansion process. It is the best choice for when a smooth surface is desired.                                                      

- Expanded Metal Mesh: Key Terms & Technical Specifications

Expanded metal mesh is a highly versatile metal product made by slitting and stretching a solid metal sheet into a diamond-patterned mesh. Below are the essential technical terms you need to understand when selecting or specifying expanded metal mesh panels or expanded metal rolls:

 Core Terminology for Performance & Sizing
 - Short Way of Diamond / Short Pitch / Short Diamond Diagonal: The length of the short diagonal of the diamond-shaped opening, measured from node center to node center. This dimension defines the fine spacing of the mesh and is a critical factor in determining its rigidity and load-bearing capacity.
 - Long Way of Diamond / Long Pitch / Long Diamond Diagonal: The length of the long diagonal of the diamond opening. This measurement dictates the overall open area of the mesh, which is essential for applications like ventilation, filtration, and visibility.
 - Strand (Mesh Strand / Diamond Strand): The continuous metal strip that forms the sides of each diamond opening. Also known as the metal strand or diamond strand, it is the primary structural element of the mesh.
 - Strand Width (Strand Thickness): The width of the metal strand, determined by the spacing of the cutting blades on the expanding machine. A wider strand width directly increases the strength of the expanded metal mesh panel, making it ideal for heavy-duty flooring, walkways, and security fencing.
 - Strand Thickness (After Expansion): The thickness of the strand after the original sheet has been stretched. This value is derived from the original sheet thickness and the pitch ratio, using the formula:
 `Strand Thickness² = Original Sheet Thickness² ÷ (1 + Short Pitch ÷ Long Pitch)`
 It is a key parameter for calculating the load capacity of expanded metal flooring and structural panels.
 - Node (Junction Point): The point where two strands intersect and remain bonded after expansion. Nodes ensure the structural integrity of the mesh and are critical for maintaining its shape under tension.

 Product Dimensions & Packaging
 - Mesh Width (Expanded Sheet Width): The width of the finished expanded metal sheet, which matches the width of the original metal plate. This dimension remains consistent during the expansion process, simplifying production and installation planning.
 - Mesh Length (Expanded Length): The length of the mesh after expansion, which is longer than the original sheet due to the stretching process. This is a key factor in calculating material yield and coverage area.
 - Mesh Roll (Coiled Expanded Metal): Expanded metal mesh wound into a continuous roll, available in standard or custom lengths. Rolls are ideal for large-area applications like fencing, cladding, and temporary barriers.
 - Mesh Panel (Flat Expanded Metal Sheet): A flat, cut-to-size expanded metal panel with precise length and width dimensions. Panels are ready for immediate installation in projects like walkways, stair treads, and decorative facades.