ASTM A702-2013(2018) Standard Specification for Steel Fence Posts Hot Wrought.pdf

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1、Designation: A702 13 (Reapproved 2018)Standard Specification forSteel Fence Posts, Hot Wrought1This standard is issued under the fixed designation A702; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A n

2、umber in parentheses indicates the year of last reapproval. Asuperscript 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. Scope1.1 This specification covers steel fence posts manufa

3、cturedfrom hot-wrought sections and intended for use in field and linefencing.1.2 The posts are available as studded tee and are furnishedpainted or galvanized, unless otherwise specified.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mat

4、hematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internati

5、onal Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A29/A29M Specification for General Requirements for SteelBars, Carbon and Alloy, Hot-WroughtA123/A123M Specification for Zinc (Hot-

6、Dip Galvanized)Coatings on Iron and Steel ProductsA499 Specification for Steel Bars and Shapes, CarbonRolled from “T” RailsA641/A641M Specification for ZincCoated (Galvanized)Carbon Steel WireA700 Guide for Packaging, Marking, and Loading Methodsfor Steel Products for Shipment2.2 Federal Standards:3

7、FED-STD-123 Marking for Shipments (Civil Agencies)2.3 Military Standards:3MIL-STD-129 Marking for Shipment and StorageMIL-STD-163 Steel Mill Products, Preparation for Ship-ment and Storage3. Terminology3.1 Definitions:3.1.1 line postsposts that support the straight-line body ofthe fence.4. Ordering

8、Information4.1 Orders for products under this standard should includethe following information:4.1.1 Quantity (number of pieces) of line posts (it iscustomary to order line posts in multiples of five of therequired length),4.1.2 Length or lengths required (see 6.2),4.1.3 Finish: galvanized or painte

9、d,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 otherthan Class 1) (see 5.5.2).NOTE 1A typical ordering description is as follows: 500 line posts; 8ft long; painted; ASTM A702 dated _; omit anchor plates.5.

10、 Materials and Manufacture5.1 Material:5.1.1 Line posts shall be fabricated from SteelAas specifiedin Table 1.5.1.2 The finished line post shall conform to the tensileproperties specified in Table 1.5.1.3 At the manufacturers option, a Brinell or Rockwell Bhardness test may be substituted for the te

11、nsile requirements inTable 1. In such cases the material shall conform to the Brinellor Rockwell B hardness specified in Table 2.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.15 on B

12、ars. This standard is a revision of Commercial Standard CS 184-51,Steel Fence PostsField Line Type, formerly published by the United StatesDepartment of Commerce.Current edition approved Sept. 1, 2018. Published September 2018. Originallyapproved in 1974. Last previous edition approved in 2013 as A7

13、0213. DOI:10.1520/A070213R18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from DLA Document Ser

14、vices, Building 4/D, 700 Robbins Avenue,Philadelphia, PA 19111-5094, http:/quicksearch.dla.mil/.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized pri

15、nciples on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.2 Line Post Section:5.2.1 The posts shall be furnished as a studded tee

16、 section.The cross section of T posts shall be approximately 138 in. (35mm) wide, 138 in. deep, and18 in. (3.2 mm) thick. Unlessotherwise specified by the purchaser, the line post type is at themanufacturers option.5.2.2 Dimensions may vary slightly in individual design inmaintaining the control wei

17、ght per foot.5.3 Wire AttachmentsLine posts shall have corrugations,knobs, notches, holes, or studs so placed and formed as toengage a substantial number of fence line wires in properpositions.5.4 Anchor Plates:5.4.1 Each line post shall be manufactured with an anchorplate, unless otherwise specifie

18、d. The anchor plate shall bemade from carbon steel and shall be swaged or riveted to thepost in such a manner as to prevent displacement when theposts are driven.5.4.2 When specified, line posts may be furnished withoutanchor plates.5.5 Wire Fasteners:5.5.1 Unless otherwise specified by the purchase

19、r, each linepost shall be provided with not less than five suitable fastenersfor attaching fence wire to the posts.5.5.2 The fasteners shall be formed from zinc-coated C1010grade steel wire 0.120 in. (3.05 mm) diameter (minimumtensile strength of 65 (448) and zinc coated in accordance withSpecificat

20、ion A641/A641M. Class 1 coating unless otherwisespecified by purchaser.6. Dimensions, Mass and Permissible Variations6.1 Nominal Weights and Tolerances:6.1.1 Nominal WeightPrior to fabrication by punching,drilling, attaching anchors, or finish coating, the line postsections shall have a nominal weig

21、ht of 1.33 lb/ft of the length.6.1.2 The weight of line posts plus anchor plates (ifspecified), prior to fabrication, drilling, or finish coating shallnot vary from nominal weights specified in Table 3 by morethan 65 %. Weight shall be determined in lots of five lineposts. The weight of the line pos

22、t shall be determined byweighing five (5) together with anchor plate. The nominalweight of each post will be determined by the average of the 5post weighed as specified in Table 3.6.2 Standard Lengths and Tolerances:6.2.1 Line posts shall be furnished in standard lengths of 5to 10 ft (1525 to 3050 m

23、m) inclusive, as specified by thepurchaser. Standard length increments are shown in Table 3.6.2.2 The length of line posts shall not vary from thatspecified more than 1.0 in. (25 mm) or +2 in. (+50 mm).6.2.3 The placement of the anchor plate shall be nominally16 in. (400 mm) from the bottom of the p

24、ost to the uppermostportion of the anchor plate and shall not vary by more than 63in. (676 mm).6.2.4 Anchor plates shall be tapered to facilitate driving, andshall have minimum area of 18 in. (11 600 mm) and shallweigh 0.67 lb (0.3 kg) 65%.7. Finish and Appearance7.1 Line posts shall be furnished pa

25、inted or galvanized asspecified by the purchaser.7.2 Painted post shall be coated with one or more coats ofweather resistant enamel (air dry or baked).7.3 When specified, galvanized post shall be in accordancewith Specification A123/A123M.8. General Requirements8.1 Material furnished under this spec

26、ification shall con-form to the general requirements of the current edition ofSpecification A29/A29M unless otherwise provided herein.9. Sampling9.1 One item from each lot shall be selected at random fortesting. A lot shall consist of all posts of the same lengthoffered for delivery at the same time

27、.9.2 The post selected in accordance with 7.1 shall be testedfor tensile strength or hardness, and zinc coating, if applicable.9.3 Five post per lot shall be selected at random andinspected for length, and permissible section dimensions (vi-sual inspection for excessive bow, camber, twist or otherin

28、jurious surface defects or coating imperfections may beconsidered cause for rejection of individual post).TABLE 1 Materials for Line PostsLine PostsSteel Steel DescriptionYield Point,min, ksi (MPa)Tensile Strength,min, ksi (MPa)A hot-wrought carbon steelor hot-wrought rail steelA50 (345) 80 (550)AHo

29、t-wrought rail steel in accordance with Specification A499.TABLE 2 Brinell HardnessSteel Steel DescriptionBrinellHardness,minRockwell BHardness,minA hot-wrought carbon steelor rail steelA156 83AHot-wrought rail steel in accordance with Specification A499.TABLE 3 Nominal Weights of (Raw) Line Posts (

30、5 %)Post Length 5 Post WeightAft m lb kg5 1.52 36.60 16.60512 1.68 39.95 18.056 1.83 43.25 19.60612 1.98 46.60 21.107 2.13 49.90 22.65712 2.28 53.20 24.158 2.44 56.55 25.659 2.74 63.20 28.7010 3.05 69.85 31.70AIncludes weight of anchor plate.A702 13 (2018)210. Rejection and Retests10.1 Should two (2

31、) or more post fail to meet any of the 9.3requirements, the lot size shall become 400. Five (5) more postshall be selected at random and inspected for compliance to therequirements of 9.3 causing the initial failure. If two (2) ormore post fail, the entire lot shall be rejected.11. Inspection11.1 Un

32、less otherwise specified in the purchase order orcontract, the manufacturer is responsible for the performanceof all inspection and test requirements specified in this speci-fication. The purchaser shall have the right to perform any ofthe inspection and tests set forth in this specification when su

33、chinspection and tests are deemed necessary to ensure that thematerial conforms to prescribed requirements.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or supplier promptly and in

34、writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for a rehearing.13. Certification13.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured

35、in accordancewith this specification and has been found to meet therequirements.14. Packaging14.1 Galvanized line post shall be loose stacked. Paintedline post in lengths 5 through 8 ft shall be bound in bundles of5 post, and by agreement with the purchaser, may be suppliedin master bundles containi

36、ng up to 250 post.14.2 Orders are customarily on piece count rather than onweight of posts. The nominal weights establish the basis forweight tolerance and transportation data (see Table 3 weights).15. Packaging, Marking, and Loading for Shipment15.1 Unless otherwise specified, packaging, marking, a

37、ndloading for shipment shall be in accordance with Guide A700.15.2 When specified in the contract or order, and for directprocurement by or direct shipment to the U.S. Government,when Level A is specified, preservation, packaging, and pack-ing shall be in accordance with Level A requirements ofMIL-S

38、TD-163.15.3 When specified in the contract or order, and for directprocurement by or direct shipment to the U.S. Government,marking for shipment, in addition to requirements specified inthe contract or order, shall be in accordance with MIL-STD-129 for U.S. Military agencies and in accordance with F

39、ED-STD-123 for U.S. Government civil agencies.16. Keywords16.1 hot-wrought steel bars; steel barsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determi

40、nation of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or wi

41、thdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that y

42、our comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (si

43、ngle or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 13 (2018)3