(Example) Part size 24″  (+-1/32) LWD x 24″ (+-1/16)  SWD will be square to within 1/16″. Established China Manufacturer and Exporter of Expanded Metal Sheets from Standard Flattened Diamond Mesh to Raised Heavy Hexagonal Mesh Patterns, Decorative Expanded Metal Mesh for Architectural Cladding. MULLION: A metal clip or angle in either 1 or 2 pieces, secured to the floor in which mullion is then positioned over. This … The sides of expanded metal design. Be sure to view the 'Expanded Solutions Process' page for a technical overview of the process and terminology. Expanded metal Terminology STYLE DESIGNATION Expanded metal products are designated by a series of numbers which identify a given style The first number designates nominal diamond pitch Short Way of Diamond (SWD) The second number used in conjunction with the first may specify the gauge of metal. ex. Energy Products . Standard Expanded Metal: Amount of metal fed into the expanding machine, which is slit and stretched with each stroke of the upper die. Conventional mesh is formed in a diamond pattern. The strands and bonds are set at a uniform angle to the plane of the sheet. Strand width Metal plate length for making one strand. L.W.O. mesh pattern in a single operation. A broad line of products in a wide range of sizes, shapes and specifications. Expanded Metal Products Terminology - Dimensions for metal mesh sizing. BB/S, an older term not much used, expanded metal mesh or walkway grating that is sheared or cut to a defined size along a center line on the bond or knuckle.Sheet size is dependent on where the bond falls during the M/R process. Made from a sheet of metal uniformly slit and stretched, forming diamond-shaped openings in the sheet – expanded metal is a one piece construction, diamond-shaped trusses add strength and rigidity. Terminology. Midwest produces Expanded Metal in a variety of materials such as aluminum, stainless steel, galvanized, carbon steel, copper, brass and titanium. The strand width is the amount of metal slit from the parent metal in forming the mesh. Our expanded metals are often used as Safety Grating, Chimney Cpas, Wire Mesh, guards, fixtures, filters and more. Flattened Expanded Metal: Width of the strand. Measured as above. Expanded Metal. Decorative Expanded Metal: Manufactured with unique shaped openings which possess great appeal for architects and designers. LWD – Long way of diamond Online Metal Supply Steel Expanded Metal, Galvanized, Flattened Sheet 1/2#16.050" x 12" x 12" 4.2 out of 5 stars 19. Terminology of Expanded Metal. SHEARING. Expanded metal panel is made of a single metal sheet and there are no welds or weak points, so it has sound structure. Short way of diamond (SWD) The length of short diamond diagonal from one pitch point center to another pitch point center. Expanded metal products are designated by a series of numbers which identify a given style. Conventional mesh is formed in a diamond pattern. BB/S, an older term not much used, expanded metal mesh or walkway grating that is sheared or cut to a defined size along a centerline on the bond or knuckle. The standards of Ultimate Tensile, Yield Strength and Elongation do not necessarily apply. select an abbreviation to learn more. Standard expanded metal that has been passed through a cold roll mill. Flat – Expanded metal that is cold-rolled after expansion, to provide a smooth, flat and level sheet; thus the term Flattened Metal. FREE Shipping on orders over $25 shipped by Amazon. Expanded Metal Terminology. Hole center is one of two measures of perforation spacing. Expanded Metal Machine; Terminology of Perforated Metal. It is most easily classified as either standard or flattened, but can also be grouped according to specific end-uses (for example, filter mesh, industrial mesh, grating and decorative meshes). It is stronger, lighter in weight and more rigid than the original base metal. Expanded Metal Grating: Sheet or plate expanded into a structural open grating ideal for catwalk and platform application. The Expanded Metal Company is a leader and innovator in the development and manufacture of expanded metal mesh products, combining more than a century of industrial experience with cutting edge technical capabilities and advanced production processes. The first number is the nominal diamond dimension Long Way of design (LWD) which is determining our Product code. Expanded Metal Ordering Procedure. Bond: The point where adjacent strands meet. Style Designation. $18.94 $ 18. They can be formed and welded; however, they are more difficult to cut than perforated panels. Expanded Metals Terminology. Hole Center is the distance from the center of one hole to the center of the nearest hole in the next adjoining row. Diamonds—open area of metal after expanding. The Definitions of Expanded Metal Terminology. Expanded Metal is a versatile and economical. The flattening process usually reduces the original gauge of the base metal. SWD Nominal dimension, Short Way of Diamond. LWO – Long way of opening. Get it as soon as Mon, Jan 18. Base Metal: Original metal before it is expanded; thickness is usually stated as gauge. Flattened: Expanded metal that has been cold-rolled after expansion, to provide a smooth, flat, and level sheet. Expanded metal Terminology. Produces closed uniform meshes. (See Diagram), LWD: Long way of design measured from center of bond to center of bond. Unflattened: Expanded metal as it is produced off the expanded metal press with no secondary flattening operation. Use them to create safety guards for equipment and machinery.. Steel is lightly oiled. Terminology. Raised expanded metal is the form the product takes when it goes through the expanding process described earlier. EXPANDED METAL TERMINOLOGY BOND: WHERE TWO STRANDS INTERSECT SWD SWO LWO LWD Strand Thickness LWD SWD S.W.D. The strands and knuckles are set at a uniform angle to the plane of the sheet. POURED IN PLACE: A metal device used to secure a frame to new concrete pour in place wall. Sheet size is dependent on where the bond falls during the M/R process. Hole Center . The first number designates nominal diamond pitch Short Way of Diamond (SWD) The second number used in conjunction with the first may specify the gauge of metal. Coil  Expanded metal that is produced to a specific width and then wound on a core. Expanded Metal comes in a standard (raised) or flattened diamond pattern in a variety of gauges, opening sizes, materials and sheet sizes. Expanded Metal Manufacturing Process. Expanded panels are more rigid than perforated panels and are for use when structural stability is important. Expanded metal is a type of sheet metal which has been cut and stretched to form a regular pattern (often diamond-shaped) of metal mesh-like material. SILL: A metal channel secured to the floor in which the sill section of a hollow metal … Strand Thickness – Gauge thickness of strand. Bond Edge – Part produced with closed diamonds. S.W.D. Raised panels have strands that overlap to provide a skid-resistant surface. (See diagram). Expand Collapse Change sector Metals Service Centers . Material looks similar to a louvered design. Bond The solid intersection of two strands. : Short way of the opening. Strand: One side of expanded metal design. Expanded Metal: A rigid piece of metal that has been slit and drawn into an open Measured form a point to a corresponding point on the adjacent diamond. : Long way of the diamond. It is stronger, lighter in weight and more rigid than the original base metal. Also called regular, unflattened, or raised expanded metal. S.W.O. Our expanded metals are often used as Safety Grating, Chimney Cpas, Wire Mesh, guards, fixtures, filters and more. National Hardware N301-606 4075BC Expanded Steel - 3/4" … Produces closed uniform meshes.This … Long way of diamond (LWD) This adds strength and rigidity, allows air circulation, and distributes the load on the metal to the supporting frames. Conventional mesh is formed in a diamond pattern. FLATTENED. (See Diagram), SWD: Short way of design measured from center of bond to center of bond. Random Sheared Edge – The shearing operation produces an “open” or random edge. A specialized product line focused on the needs of its energy industry customers ... TERMINOLOGY. EM 30 as per the illustration on the left. Metals Service Centers . FIRST NUMBER: designates nominal diamond pitch Short Way of Design (SWD). Measured from the inside of the bonds. Bond The solid intersection of two strands. They are also referred to as Expanded Metal Coils. Typical footage per coil is 2,000 or more feet. The expanded metal terminology helps you understand the specification and make an order quickly. Return to our 'Expanded Metals' page, or browse our 'Expanded Metal Grating', 'Sun Shade & Micro-Mesh' and 'Expanded Mini-Mesh' pages for product specs of each type. SECOND NUMBER: used in conjunction with the first number MAY specify the gauge of metal, weight per hundred square feet, or may have some other significance. Camber—the bow of a side or edge from end to end from a straight line. Expanded Metal Terminology 101 Midwest produces Expanded Metal in a variety of materials such as aluminum, stainless steel, galvanized, carbon steel, copper, brass and titanium. LWD Nominal dimension, Long Way of Diamond. Expanded metal products are defined by a series of numbers which identify a given style. It can be treated by galvanized, PVC coated, powder coated, etc. Steel Expanded Metal is a sheet product that has been slit and stretched to a wide array of diamond shaped openings.Steel Expanded Metal offers savings in weight and metal, free passage of light, liquid, sound and air, while providing a decorative or ornamental effect. SWD - Short Way of Design - Distance from a point on a bond to a corresponding point … Expanded metal is an extraordinarily versatile material. SW Short way of expanded metal sheet. L.W.D. EXPANDED METAL Terminology SWD- "Short way Of diamond, or design" d menslon; first ... Strand Width- Amount of metal fed under the dies to produce one strand. SWD – Short way of diamond Bond—the solid intersection of two strands. There is an instruction of ordering expanded metal panels, it helps you make an order. Strand thickness Thickness of the metal that to be expanded. 94. Diamond: The open area formed by stands and bonds. Expanded Metal: A rigid piece of metal that has been slit and drawn into an open mesh pattern in a single operation. Expanded Metal Terminology . The Company distributes steel products and conducts its distribution business in three principal business segments: metals service centres; energy products and steel distributors. Strand: The single metal strip that forms the perimeter of the diamond. This is closely controlled and is directly related to the weight, overall  The flattening process will reduce the original thickness by approximately 10%. Publish Time：2015-08-21 Hits：1048. SWO – Short way of opening LW Long way of expanded metal sheet. The other is open area. Measured from the centre of one bond to the centre of the next. Expanded metal as it comes from the press. The first rule in testing expanded metal and expanded plastic is the need for new rules. LWD: Long way of the diamond, the distance from the center of one bond to the center of the next bond across the longer opening of the diamond. Russel Metals is one of the largest metals distribution and processing companies in North America. Shearing Tolerances ... Raised Expanded How To Order Expanded Metal Specify the size sheet required, listing SWD first. Unflat – Standard expanded metal with raised diamonds; hence the term Unflattened Metal. Finished Thickness: Thickness of expanded metal after it’s final secondary operation(s). Expanded metal products are designated by a series of numbers which identify a given style. Design Size Actual dimension SWD and LWD. : Short way of the diamond. Simply establishing the area to be considered becomes a point of discussion. Squareness – An expanded metal blank will be square to within the largest tolerance of length or width. (See Diagram), Bond: The solid intersection of two strands - Double the strand width. 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