ASTM A702-22

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Designation: A702 − 13 (Reapproved 2018) A702 − 22
Standard Specification for
Steel Fence Posts, Hot Wrought
This standard is issued under the fixed designation A702; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope Scope*
1.1 This specification covers steel fence posts manufactured from hot-wrought sections and intended for use in field and line
fencing.
1.2 The posts are available as studded tee and are furnished painted or galvanized, unless otherwise specified.
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.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A123/A123M Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
A499 Specification for Steel Bars and Shapes, Carbon Rolled from “T” Rails
A641/A641M Specification for Zinc–Coated (Galvanized) Carbon Steel Wire
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
2.2 Federal Standards:Standard:
FED-STD-123 Marking for Shipments (Civil Agencies)
2.3 Military Standards:
MIL-STD-129 Marking for Shipment and Storage
MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage
3. Terminology
3.1 Definitions:
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.15
on Bars. This standard is a revision of Commercial Standard CS 184-51, Steel Fence Posts—Field Line Type, formerly published by the United States Department of
Commerce.
Current edition approved Sept. 1, 2018May 1, 2022. Published September 2018May 2022. Originally approved in 1974. Last previous edition approved in 20132018 as
A702–13. –13 (2018). DOI: 10.1520/A0702–13R18.10.1520/A0702-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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*A Summary of Changes section appears at the end of this standard
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A702 − 22
3.1.1 line posts—posts that support the straight-line body of the fence.
4. Ordering Information
4.1 Orders for products under this standard should include the following information:
4.1.1 Quantity (number of pieces) of line posts (it is customary to order line posts in multiples of five of the required length),
4.1.2 Length or lengths required (see 6.2),
4.1.3 Finish: galvanized or painted,
4.1.4 ASTM designation and date of issue,
4.1.5 Anchor plates, if required (see 6.2.4).
4.1.6 Wire fasteners (state weight of zinc coating if other than Class 1) (see 5.5.2).
NOTE 1—A typical ordering description is as follows: 500 line posts; 8 ft long; painted; ASTM A702 dated ___; omit anchor plates.
5. Materials and Manufacture
5.1 Material:
5.1.1 Line posts shall be fabricated from Steel A as specified in Table 1.
5.1.2 The finished line post shall conform to the tensile properties specified in Table 1.
5.1.3 At the manufacturer’s option, a Brinell or Rockwell B hardness test may be substituted for the tensile requirements in Table
1. In such cases the material shall conform to the Brinell or Rockwell B hardness specified in Table 2.
TABLE 1 Materials for Line Posts
Line Posts
Yield Point, Tensile Strength,
Steel Steel Description min, ksi (MPa) min, ksi (MPa)
A hot-wrought carbon steel 50 (345) 80 (550)
A
or hot-wrought rail steel
A
Hot-wrought rail steel in accordance with Specification A499.
A702 − 22
TABLE 2 Brinell Hardness
Brinell Rockwell B
Hardness, Hardness,
Steel Steel Description min min
A hot-wrought carbon steel 156 83
A
or rail steel
A
Hot-wrought rail steel in accordance with Specification A499.
5.2 Line Post Section:
5.2.1 The posts shall be furnished as a studded tee section. The cross section of T posts shall be approximately 1 ⁄8 in. (35 mm)
3 1
(35 mm) wide, 1 ⁄8 in. deep, and ⁄8 in. (3.2 mm) thick. Unless otherwise specified by the purchaser, the line post type is at the
manufacturer’s option.
5.2.2 Dimensions may vary slightly in individual design in maintaining the control weight per foot.
5.3 Wire Attachments—Line posts shall have corrugations, knobs, notches, holes, or studs so placed and formed as to engage a
substantial number of fence line wires in proper positions.
5.4 Anchor Plates:
5.4.1 Each line post shall be manufactured with an anchor plate, unless otherwise specified. The anchor plate shall be made from
carbon steel and shall be swaged or riveted to the post in such a manner as to prevent displacement when the posts are driven.
5.4.2 When specified, line posts may be furnished without anchor plates.
5.5 Wire Fasteners:
5.5.1 Unless otherwise specified by the purchaser, each line post shall be provided with not less than five suitable fasteners for
attaching fence wire to the posts.
5.5.2 The fasteners shall be formed from zinc-coated C1010 grade steel wire 0.120 in. (3.05 mm) diameter (minimum tensile
strength of 65 (448)) and zinc coated in accordance with Specification A641/A641M. Class 1 coating unless otherwise specified
by purchaser.
6. Dimensions, Mass and Permissible Variations
6.1 Nominal Weights and Tolerances:
6.1.1 Nominal Weight—Prior to fabrication by punching, drilling, attaching anchors, or finish coating, the line post sections shall
have a nominal weight of 1.33 lb/ft of the length.
6.1.2 The weight of line posts plus anchor plates (if specified), prior to fabrication, drilling, or fin
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