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This specification covers the strength and protective coating requirements for industrial steel chain link fence framework. Maximum allowable heights of framework and post spacing are to be based on chain link fence fabric mesh size and gages, and specified wind loads. Coatings shall be classified as: external coatings (Type A, B, and C) and internal coatings (Type A, B, C, and D). Zinc used for coating shall be any grade of zinc conforming to the requirements and shall be applied by the hot-dip method. Strength test, tension test, adhesion test, and cross hatch test shall be performed to meet the specified requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
1.1 This specification covers the strength and protective coating requirements for industrial steel fence framework. The intended use is for all types of fence, including but not limited to, chain link, expanded metal, wire mesh both welded and woven, PVC and wood. Consult fencing product manufacturer for post spacing requirements. Post spacings for chain link fence are not to exceed 10 ft. (For additional information, see CLFMI Guide WLG2445.)
1.1.1 Caution Regarding Windload—If additives to the fence, such as windscreen, inserts, or signage are required, it is advisable to use stronger framework and fittings, to reduce the on-center spacing of posts, or to add back bracing. Factors to consider when determining windload include the type of screening material to be used, area of fence to be covered and local wind conditions.
1.2 Posts and rails may have any cross-sectional shape meeting the requirements herein. The shapes may be formed and welded, cold formed, hot rolled, or extruded.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
B6 Specification for Zinc
D1499 Practice for Filtered Open-Flame Carbon-Arc Exposures of Plastics
D3359 Test Methods for Measuring Adhesion by Tape Test
E8 Test Methods for Tension Testing of Metallic Materials
E376 Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Testing Methods
F552 Terminology Relating to Chain Link Fencing
F934 Specification for Colors for Polymer-Coated Chain Link Fence Materials
F1083 Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
Other DocumentsWLG2445 CLFMI Guide for the Selection of Line Post Spacings Available from Chain Link Fence Manufacturers Institute, 10015 Old Columbia Road, Suite B-215, Columbia, MD 21046, http://www.chainlinkinfo.org.
ICS Number Code 91.090 (External structures)
UNSPSC Code 31151609(Chain links); 11101704(Steel)