Wire Cloth Technical Reference Index
800.440.6374    Phone 360.835.7507    sales@wovenwire.com                   
 
This page provides links to several documents containing technical reference information on the subject of screening, woven wire cloth, woven wire mesh, wire weaving, North American European, Asian and International weaving standards, materials utilized for weaving, styles, types and methods of weaving and synthetic screening surfaces.
   
  The Complete Wire Cloth Glossary of Terms
  A comprehensive glossary of wire cloth, wire mesh, screening and weaving terms. 
  This section also available in printable pages.
   
Applications
  Popular uses and applications of Woven Wire Cloth Products. 
   
  EMI Electromagnetic Iinterference
  Electromagnetic interference is a disturbance that affects an electrical circuit due to either electromagnetic induction or electromagnetic radiation emitted from an external source. The disturbance may obstruct, degrade or reduce the effective performance of the circuit.
   
  RFI/EMI Screen Room Shielding
  A Faraday cage (or shield) is an enclosure formed by a woven wire mesh of conducting material. Such an enclosure blocks out external static electric fields. Faraday cages are named after Michael Faraday, the inventor.
   
  National Park Service - Rodent Exclusion
 

Wildlife Damage Management Rodent Exclusion Techniques: A Training Guide for National Park Service Employees

   
  No See Ums, Small Opening Insect Screen
  Bite prevention is the preferred way of dealing with these pests. Your home or business can be protected with a special screening which is available to exclude these fliesMost biting midges can pass through a 18 x 16 or 16 x 16 mesh insect screen, so a smaller opening  size (higher mesh count) is required to prevent entry.
   
  Termite Barrier Screening System
  Stainless steel woven wire mesh is a safe long term solution for the prevention of Subterranean Termite and  Insect entry.  The screen provides a physical barrier the insects can not fit through, without containing any chemicals or toxic substances.
   
  Wire Cloth Product Applications
   

Filtration

Micronic Filtration Cloth

   
  Flow Rate Data - Particle Retention
  Tables provide micronic retention standards, wire cloth screen thickness, weights and flow rate comparison data for oil, fuel and air.
   
  Micronic Filter Specifications
   

Screening

Sifting - Sizing - Sorting

   
  Standard Sieve Series for Woven Wire Cloth
  Standard designations correspond to the values for test sieve apertures as recommended by the International Standards Organization (ISO)
   
  NIST / ASTM Sieve Screen Tolerances
  Specifications of permissible working (manufacturing) tolerances that apply to Woven Wire Sieve Screens (Standard Sieve Series)  adopted by U.S. Bureau of Standards & American Society for Testing Materials.     
  The National Institute of Standards and Technology (NIST), known between 1901 and 1988 as the National Bureau of Standards (NBS), is a measurement standards laboratory which is a non-regulatory agency of the United States Department of Commerce
   
  Sieve Comparison Table
  International Wire Cloth Test Sieve Comparisons.
   
Screen Opening  Mesh Locator
  Popular mesh specifications organized by screen opening in descending order from large (0.446") to small (0.0010").
   
 
Printable Mesh Locator Tables
Mesh Locator Table-1
Mesh Locator Table-2
Mesh Locator Table-3
Mesh Locator Table-4
Mesh Locator Table-5
Mesh Locator Table-6
   
  ASTM / Metric Size Cross-Reference
   
   
  Bed Depth Formula
  The material bed should not be allowed to reach a depth that prevents the undersize from stratifying before discharge at the screen surface end.
   
  Particle Size / Screen Mesh Comparison Table
   
  Screen Edge Hemming
  Hems are commonly used to re-enforce the edges of wire mesh, hide imperfections and provide a safer (smother) edge to handle.
   
  Screen Edge Treatments and Hook Strips
  Screens for classifying, sizing, straining, sieving, are typically secured by clamping rails that apply tension across the screening surface.
   
  Screen Specification Selection Tips
  Assistance with selection of woven wire cloth screen specifications.
   
Square Mesh
  Square Mesh is woven in the same Mesh Count (number of wires per linear inch or millimeters) running in both directions. Warp is the length of the roll, Weft is the width across the roll.
  Wire Cloth specifications always refer to the Warp Mesh Count first, followed by the Weft mesh count second
   
   
Specification
  The word specification is defined as "to state explicitly or in detail" or "to be specific".
   
   
Woven Wire Product Specifications
  Screen Technology Group, Inc. (STG) has developed a universally recognizable system of Woven Wire Product Specifications that any person having only the most basic understanding of the wire weaving industry and woven wire products can easily interpret and cross reference with their own method of woven wire specifications and/or part numbering systems.
  Unfortunately several companies engaged in manufacturing and marketing Woven Wire Products have developed their own system of specifying the products and the part numbers utilized to represent their products in a unique fashion in order to suggest exclusivity and thus limit fair competition by competitors  
  who produce identical products.
   
   
Guide to Understanding 'Woven Wire Product Specifications'
   The word specification is defined as "to state explicitly or in detail" or "to be specific".
   
  To simplify the data storage and allow quick accessibility to the vast quantity of Specifications, many of the specifications have been sorted into Product Groups by relevance, basic characteristics, or the type of applications they may be best suited for.       
   
  Each type (or class) of Specification Group is accessible from the Woven Wire Cloth Products page. Each product specification group is provided with a brief description of the group and a link that will deliver you to the Product Specification Group page
   
  Screen Technology Group has published over 1,200 catalog products, all of which are well described in precise all inclusive technical details, among our extensive library of 28 Primary Product Specification Groups. These groups are all accessible from our Wire Cloth Products page.
   
Guide to Understanding Woven Wire Product 'Part Numbers'
   
   
   
   
   
   
   
  Square Mesh Tables
  Square mesh is woven with the same mesh count and wire diameter in both directions.
         Many of these specifications are only available by special order.
   
  Total Required Screening Area
  A separate calculation is required for each deck of a multiple deck screen, although the same formula is utilized for each calculation.
   
  Vibrating Screen Installation & Maintenance
  Valuable tips to reduce operating costs by maximizing screen life.
   
  Vibrating Screen Square Opening Specifications
  Screen Openings suitable for dry screening applications.
   
  Vibrating Screen Slotted Opening Specifications
  Screening Tables for dry and wet screening applications.
   
Weaving Materials
  Descriptions, Material Quality Standards, and Technical Information
   
  Popular Weaving Materials
  The materials commonly utilized in wire cloth weaving are identified.
   
  Corrosion Resistance of Various Weaving Materials
  Basic corrosion resistance of materials utilized in wire cloth weaving.
   
  Corrosion Data-Stainless Steel
  Table provides detailed comparisons of the commonly utilized grades of stainless steel against chemicals and substances ranging from A thru Z.
   
  Galvanic Corrosion Table
  The Galvanic Table lists metals in the order of their relative activity in seawater environment.  Information derived from  MIL-STD-889
   
  MILL-STD-8898-PDF  Military Standard Dissimilar Metals
  This standard defines and classifies dissimilar metals, and establishes requirements for protecting coupled dissimilar  metals, with attention directed to the anodic member of the couple, against corrosion.
   
  Melting Temperatures of Various Metals
  Celsius and Fahrenheit Temperatures are indicated, Metals are listed alphabetically.
   
  Physical Properties of Weaving Wire
  Table provides hard drawn and annealed tensile strengths of weaving wire.
   
  Wire Diameters
  Gauge sizes are indicated as whole numbers, the reference tables give the decimal equivalents of the different gauge numbers utilized in wire cloth weaving. 
   
  Wire Diameter Tolerances
  ASTM Allowable deviation from nominal Carbon and Stainless Steel wire diameters.
   
  Weights of Various  Materials
  Conversion factors provided to determine the approximate weight of wire cloth woven of various materials. Based on the weight of Stainless Steel wire cloth.
   
   
   
 
ASTM A740 - 98(2014
Standard Specification for Hardware Cloth
Woven or Welded Galvanized Steel Wire Fabric
  This specification covers woven or welded galvanized steel wire fabric commercially known as hardware cloth. It is customarily used for window and screen door guards, tree guards, industrial machine guards, sand screens, and grain bins. It serves as a protective screen against rodents and is used for many other home, farm, and industrial purposes. The base metal of hardware cloth shall be of good commercial quality carbon steel wire. The zinc use in the galvanizing process shall be any grade of zinc. Hardware cloth shall be of wire woven or welded into squares or rectangles and then galvanized by the hot-dip process. The mesh size in inches shall be determined by counting the meshes for any interval of one continuous linear foot, in the direction of either the warp or filler wires, and finding the mesh size. All wire diameter designations in this specification for hardware cloth are finished sizes after galvanizing. Wire diameter for calculating purposes shall be the average measured diameters, after stripping, of at least five warp and an equal number of filler wires.
   
   
  ASTM A123 / A123M

Standard Specification for Zinc (Hot-Dip Galvanized)

Coatings on Iron and Steel Products
  This specification covers the standard requirements for hot-dip galvanized zinc coatings on iron and steel products made from rolled pressed and forged shapes, castings, plates, bars, and strips. This specification deals with both un-fabricated products and fabricated products, for example, assembled steel products, structural steel fabrications, large tubes already bent or welded before galvanizing, and wire work fabricated from uncoated steel wire. Also covered here are steel forgings and iron castings incorporated into pieces fabricated before galvanizing or those too large to be centrifuged (or otherwise handled to remove excess galvanizing bath metal).
   
  ASTM B134 / B134M Standard Specification for Brass Wire
  This specification establishes the requirements for round, hexagonal, octagonal, rectangular and square brass wire of UNS Alloy Nos. C21000, C22000, C22600, C23000, C23400, C24000, C26000, C27000, and C27400. The chemical composition, temper, annealed wire grain size, Rockwell hardness, and tensile strength requirements are detailed.
   
Specifically Brass
  About Brass
   
Specifically Copper
   
  Antenna Circuit Reference Ground Plane
  In the field of radio telecommunication a  ground plane structure or relationship exists between the antenna and another conductive (reflective) surface which permits the antenna to function as such (e.g., forms a reflector or director for an antenna). This sometimes serves as the near-field reflection point or as a reference ground in a antenna circuit.
   
  Copper Wire Cloth RFI and EMI Shielding Applications
   
  Copper Contact Corrosion
  Commercially Pure Copper is often effected by certain climatic conditions, air pollution, weathering, corrosion, staining, substrate, solder and sealants
   
  Copper AWG Chart, Areas Weights & Resistances
   
  Healing Powers of Copper
   
  The History of Copper
  Archaeological evidences suggest people who had lived between 5000 BC and 1,200 BC discovered copper.
   
Specifically About Brass
  About Brass
   
Specifically Stainless Steel
  Stainless Steel Reference Guide
   
  Stainless Steel Material Safety Data Sheet
  This MSDS applies to all grades of stainless steels provided in the woven form by Screen Technology Group, Inc.
   
  Chemical Compositions of Stainless Steel
  Chemical analysis of the most popular Stainless Steel Wire grades.
   
  Corrosion Resistance of Stainless Steel
  Stainless Steel Laboratory corrosion data provided for the commonly utilized grades of stainless steel against chemicals and substances ranging from A thru Z.
   
  Stainless Steel Screen Maintenance & Cleaning Procedures
  The cleanliness of stainless steel mesh is essential for maximum resistance to corrosion.  
   
  Stainless Steel Wire Properties
   
  Stainless Steel Standards - Table 1
   
  Stainless Steel Standards - Table 2
   
  Stainless Steel Standards - Table 3
   
  Stainless Steel Standards - Table 4
   

Weaving and Wire Product Standards

Standards, Styles and Types

   
  Miscellaneous International Wire Standards
  Information provided on this page was provided by Chinese sources such as International Trade Organizations, Trade Publications and the International Public Domain. This information may conflict with Governing US and European Standards. Certain portions shown below could be inaccurate misinterpretations as they were interpreted from Chinese text.
   
   
  European Wire & Wire Product Weaving Standards
   
  Miscellaneous International Wire Standards
  Information provided on this page was provided by Chinese sources such as International Trade Organizations, Trade Publications and the International Public Domain. This information may conflict with Governing US and European Standards. Certain portions shown below could be inaccurate misinterpretations as they were interpreted from Chinese text.
   
Formulas
  Formulas for computing Mesh Count, Size of Opening and Open Area.
   
  Formula To Determine Mesh Count
   
  Square Mesh Open Area Formula
   
  Rectangular Mesh Formula Open Area Formula
   
  Space Cloth Open Area Formula
   
  Long Slot Triple Shoot Screen Open Area Formula
   
  How to Calculate Weight of Wire Cloth
   
  Mesh Opening (Aperture) Size Formula
   
   
  Roll Width Tolerance
  Standard wire cloth roll width tolerances.
   
  Screen Camber and Bow
  If unbalanced warp tensions exist in a woven wire screen, that screen will usually assume a "crescent" or "banana" shape when laid flat upon a horizontal surface.  This deviation from a straight line is hereby defined as "camber."
   
  Space Cloth Opening Tolerances
  Allowable deviation of space cloth openings.
   
  Woven Wire Mesh Count Tolerance
  The allowable deviations in the mesh count shall be applied separately for warp and shute (weft) directions.
   
  Wire Mesh Opening Tolerance
  Formulas provided to calculate Mesh Opening Tolerances were derived from ASTM E2016-15   Table 7  - Tolerance in Mesh Count
   
 

Allowable Tolerances For Woven Wire Mesh and Wire Cloth -Printable

   
  Weave Styles
  Wire cloth weaves in both common and pre-crimped are defined and illustrated.
   
  International Weaving Wire Standards
   
  US Wire For Weaving and Woven Wire Standards
   
Woven Wire Product Standards.
   
  European and Asian Wire and Woven Wire Product Standards
  Predominately utilized for wire cloth intended for use in European and Asian Countries.
   
  RRW-360A
  Federal Specification Wire Fabric, Industrial
   
  RRW365
   
  NAICS Codes
  For both woven wire and wire mesh products.
   
  North American Weaving Wire and Woven Wire Product Standards
  These standards are commonly adhered to by wire weavers throughout North America in addition to European and Asian weavers who produce wire cloth for products marketed or utilized within the Northern Hemisphere.
   
  European Wire & Wire Product Weaving Standards
   
  US Wire Cloth Standards
  List of the current North American weaving standards, including some brief background history and their continuing evolution.
   
   
The Weaving Process
Methods, Looms and Tooling
   
  Wheel Crimper Tooling
  Crimping Wheels are the most precise and economical method for producing pre-crimped wires.
   
  Punch Crimper Tooling
  This Section is Currently Under Construction
   
Synthetic Screening
  Polyurethane Screening Systems
  A comparison of the advantages and disadvantages of Tension Mats and Modular Screening Systems.
   
  Polyurethane & Rubber Screening Glossary of Terms
  A complete glossary of terms pertaining to synthetic screens.
   

Miscellaneous

   
  Wire Standards and Trade Associations and Research Links
   
   


 
  What is EMI ?  What is RFI ?     
  How can either one of these things effect your Standard of Living?
  Can they have any negative effects on your Health? 
  These questions will soon be addressed in the new EMI/RFI reference section that is currently under development.
   
  The new index already provides some interesting information and your welcome to take a peek at what is already available for review.
 
  If you have a few minutes to spare please visit the link shown below.
 EMI / RFI Reference Index
   
  This reference index provides information regarding the growing concerns of Health Risks and Hazards Attributed to Low Energy Radiation.
 
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Screen Technology Group, Inc
33008 NE Washougal River Road, Washougal WA 98671 USA
 
Screen Technology Group, established in 1988 With our success built on providing a level of customer service that is second to none, competent technical assistance, quality materials at competitive prices, properly package every order, always ship promptly according to schedule.
 
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Last modified: March 05, 2017