1、Designation: A702 89 (Reapproved 2006)A702 13Standard Specification forSteel Fence Posts and Assemblies, 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, t
2、he year of last revision. A number 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 Department of Defense.1. Scope1.1 This specification covers
3、steel fence posts and assemblies manufactured from hot-wrought sections and intended for use infield and line fencing.1.2 The posts are available in tee, channel, or U and Y-bar shapes or angle shapes and as studded tee and are furnished paintedor galvanized, unless otherwise specified.1.3 The value
4、s stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2A29/A29M Specification for Steel Bars, Carbon and All
5、oy, Hot-Wrought, General Requirements forA36/A36M Specification for Carbon Structural SteelA123/A123M Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel ProductsA153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel HardwareA499 Specification for Steel Bars and Sha
6、pes, Carbon Rolled from “T” RailsA641/A641M Specification for ZincCoated (Galvanized) Carbon Steel WireA700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment2.2 Federal Standards:3FED-STD-123 Marking for Shipments (Civil Agencies)2.3 Military Standards:3MIL-STD-12
7、9 Marking for Shipment and StorageMIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage3. Terminology3.1 Definitions:3.1.1 assembliesangel section post components for installation of gates, fence ends or corners, and intermediate bracing.3.1.1 line postsposts that support the straigh
8、t-line body of the fence.4. Ordering Information4.1 Orders for products under this standard should include the following information:4.1.1 Quantity (number of pieces) of line posts, end or gate assemblies, corner or intermediate brace assemblies posts (it iscustomary to order line posts in multiples
9、 of five of the required length and the required number of end or corner assemblies),length),1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.15on Bars. This standard is a revision of
10、Commercial Standard CS 184-51, Steel Fence PostsField Line Type, formerly published by the United States Department ofCommerce.Current edition approved March 1, 2006Oct. 1, 2013. Published March 2006November 2013. Originally approved in 1974. Last previous edition approved in 20002006as A702 89 (200
11、6). (2000). DOI: 10.1520/A0702-89R06.10.1520/A0702-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Avail
12、able from Standardization Documents Order Desk, Bldg. 4 Section D, 700 RobbinsAve.,DLADocument Services, Building 4/D, 700 RobbinsAvenue, Philadelphia,PA 19111-5094, Attn: NPODS.http:/quicksearch.dla.mil/.This document is not an ASTM standard and is intended only to provide the user of an ASTM stand
13、ard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM
14、 is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.2 Type of section (if a specific section is required) (see 5.2 and Fig. 1),4.1.2 Length or lengths required (see 6.2),4.1.3 Finish: galvani
15、zed or painted,4.1.4 ASTM designation and date of issue,4.1.5 Anchor plates, if required (see 5.4.36.2.4), and ).4.1.6 Wire fasteners (state weight of zinc coating if other than Class 1) (see 5.6.25.5.2 and 5.6.3).NOTE 1A typical ordering description is as follows: 500 line posts; 8 ft long; painted
16、; ASTM A702 dated _; omit anchor plates.5. Materials and Manufacture5.1 Material:5.1.1 Line posts shall be fabricated from Steels A or B and assemblies from Steels A, B, or C Steel A as specified in Table 1.5.1.2 Except as provided in The 6.1.3, the finished line post and assemblies shall conform to
17、 the tensile properties specified inTable 1 for the applicable steel. .5.1.3 At the manufacturers option, a Brinell or Rockwell B hardness test may be substituted for the tensile requirements inTable 1. In such cases the material shall conform to the Brinell or Rockwell B hardness specified in Table
18、 2.5.2 Line Post Section:5.2.1 The posts shall be furnished as T, channel or U, or Y sections as illustrated in a studded tee section. Fig. 1. The crosssection of T posts shall be approximately 138 in. (35 mm) wide, 138 in. deep, and 18 in. (3.2 mm) thick. Unless otherwise specifiedby the purchaser,
19、 the line post type is at the manufacturers option.5.2.2 Dimensions may vary slightly in individual design in maintaining the control weight per foot.5.3 Wire AttachmentsLine posts shall have corrugations, knobs, notches, holes, or studs so placed and formed as to engagea substantial number of fence
20、 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 fromcarbon steel and shall be swaged or riveted to the post in such a manner as to prevent displacement when the posts are driv
21、en.5.4.2 The placement of the anchor plate shall be nominally 14 in. (350 mm), 16 in. (400 mm), or 18 in. (450 mm) from thebottom of the post to the uppermost portion of the anchor plate.5.4.3 Anchor plates shall be tapered to facilitate driving, shall have a minimum area of 18 in.2 (11600 mm2) and
22、shall weigh0.67 lb (0.3 kg) 6 5 %.5.4.2 When specified, line posts may be furnished without anchor plates.5.4.5 Anchor plates shall be manufactured from Type A or B materials.5.5 Post Assemblies:5.5.1 Uprights shall consist of angles with a nominal size 212 by 212 by 14 in. (65 by 65 by 6.4 mm) weig
23、hing approximately4.10 lb/ft (6.1 kg/m) prior to fabrication.5.5.2 Braces shall consist of angles with a nominal size 2 by 2 by 14 in. (50 by 50 by 6.4 mm) weighing approximately 3.19 lb/ft(4.75 kg/m) prior to fabrication, or an alternative angle of equivalent weight.5.5.3 Uprights and braces shall
24、be furnished with the necessary holes and galvanized hardware for the required assembly.5.5.4 All assemblies shall be furnished with one upright. End and gate assemblies shall be furnished with one brace, and cornerand intermediate braces with two braces.TABLE 1 Materials for Line Posts and Assembli
25、esLine Posts AssembliesSteel Steel DescriptionYield Point, min,ksi (MPa)Tensile Strength, min,ksi (MPa)Yield Point, min,ksi (MPa)TA hot-wrought carbon steel,0.35 % carbon, min40 (275) 70 (485) 40 (275)B hot-wrought carbon steel, orhot-wrought rail steelA50 (345) 80 (550) 50 (345)C structural steelB
26、. . 36 (250)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)A Hot wrought rail steel in accordance with Specification A499.B In accordance with Specification
27、A36/A36M.A702 1325.5 Wire Fasteners:5.5.1 Unless otherwise specified by the purchaser, each line post shall be provided with not less than five suitable fasteners forattaching fence wire to the posts.5.5.2 The fasteners shall be formed from zinc-coated C1010 grade steel wire not less than 0.120 in.
28、(3.05 mm) diameter(minimum tensile strength of 65 (448) and zinc coated in accordance with Specification A641/A641M. Class 1 coating shall befurnished unless otherwise specified by purchaser.5.6.3 When line posts are intended for range type western fencing using three line wires, it is satisfactory
29、to provide only threefasteners for each post.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 post sections shallhave a nominal weight of 1.33 lb/ft of the l
30、ength.6.1.2 The weight of line posts plus anchor plates (if specified), prior to fabrication, drilling, or finish coating shall not vary fromnominal weights specified in Table 3 by more than 65 %. Weight shall be determined in lots of five line posts. The weight of theline post shall be determined b
31、y weighing five (5) together with anchor plate. The nominal weight of each post will be determinedby the average of the 5 post weighed as specified in Table 3.6.1.3 The weight of assembly components prior to fabrication, drilling, or finish coating shall not vary from the nominal weightsspecified in
32、 Table 4 by more than 65 %. Single assembly components shall be used to determine weight.6.2 Standard Lengths and Tolerances:6.2.1 Line posts shall be furnished in standard lengths of 5 to 10 ft (1525 to 3050 mm) inclusive, as specified by the purchaser.Standard length increments are shown in Table
33、3.6.2.2 The length of line posts, uprights, and braces posts shall not vary from that specified more than 1.0 in. (25 mm) or +2in. (+50 mm).6.2.3 The placement of the anchor plate shall not vary from the nominal be nominally 16 in. (400 mm) from the bottom of thepost to the uppermost portion of the
34、anchor plate and shall not vary by more than 63 in. (676 mm).6.2.4 Anchor plates shall be tapered to facilitate driving, and shall have minimum area of 18 in. (11 600 mm) and shall weigh0.67 lb (0.3 kg) 65 %.7. Workmanship, Finish, Finish and Appearance7.1 Line posts, uprights, and braces posts shal
35、l be furnished painted,painted or galvanized as specified by the purchaser.7.2 When specified to be painted, the posts shall be cleaned of all loose scale prior to finishing, and painted Painted post shallbe coated with one or more coats of weather resistant, air drying or baking paint or enamel. re
36、sistant enamel (air dry or baked).7.3 When specified to be galvanized, the posts and post assemblies shall be zinc coated by the hot-dip process specified,galvanized post shall be in accordance with Specification A123/A123M. The assembly hardware (see 5.5.3) shall be zinc coatedin accordance with Sp
37、ecification A153/A153M.TABLE 2 Brinell HardnessSteel Steel DescriptionBrinellHardness,minRockwell BHardness,minA hot-wroughtcarbon steel,0.35 %, carbon,min143 79B hot-wroughtcarbon steel orrail steelA156 83C structural steelB 116 68TABLE 2 Brinell HardnessSteel Steel DescriptionBrinellHardness,minRo
38、ckwell BHardness,minA hot-wrought carbon steelor rail steelA156 83A Hot wrought rail steel in accordance with Specification A499.B In accordance with Specification A36/A36M.A702 1338. General Requirements8.1 Material furnished under this specification shall conform to the general requirements of the
39、 current edition of SpecificationA29/A29M unless otherwise provided herein.9. Sampling9.1 One item from each lot shall be selected at random for testing. A lot shall consist of all posts or assemblies or both, of thesame length offered for delivery at the same time.9.2 The post or assembly selected
40、in accordance with 7.1 shall be tested for tensile strength or hardness, weight, and zinccoating, if applicable.9.3 For purposes of visual inspection, length determinations, and dimensional examination, one post or assembly from each 400,or a total of seven, or whichever is less, shall be selected a
41、t random.9.3 Visual inspection shall include examination for such features as Five post per lot shall be selected at random and inspectedfor length, and permissible section dimensions (visual inspection for excessive bow, camber, twist,twist or other injuriousimperfections in surface defects or coat
42、ing. Such coating imperfections may be considered cause for rejection of individual postsor assemblies. post).10. Rejection and Retests10.1 Should the post or assembly fail to meet any of the requirements of 10.2, the lot size shall become 400. One test shall beselected from each lot, and failure of
43、 the test shall result in rejection of that particular lot.10.1 Should two (2) or more posts or assemblies post fail to meet any of the requirements9.3 ofrequirements, 10.3, the lot sizeshall become 400. Seven items shall be examined from each lot Five (5) more post shall be selected at random and i
44、nspected forcompliance to the requirements of 10.39.3 causing the initial failure. If two of (2) or more itemspost fail, the entire lot shall berejected.TABLE 3 Nominal Weights of (Raw) Line PostsPost Length WeightAft m lb kg5 1.52 7.32 3.32512 1.68 7.99 3.616 1.83 8.65 3.92612 1.98 9.32 4.227 2.13
45、9.98 4.53712 2.28 10.64 4.838 2.44 11.31 5.139 2.74 12.64 5.7410 3.05 13.97 6.34TABLE 3 Nominal Weights of (Raw) Line Posts (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
46、.74 63.20 28.7010 3.05 69.85 31.70A Includes weight of anchor plate.TABLE 4 Nominal Weights of (Raw) AssembliesLength WeightAft m lb kgUpright and one brace, each (end orgate)7 2.13 51 23Upright and two braces, each (corneror intermediate brace)7 2.13 73 33Upright and one brace, each 8 2.44 58 26Upr
47、ight and two braces, each 8 2.44 84 38Upright and one brace, each 9 2.74 66 30Upright and two braces, each 9 2.74 94 43A Includes weight of bolts.A702 13410.3 Any individual post or assembly failing to meet the requirements of 10.2 or 10.3 shall be rejected.11. Inspection11.1 Unless otherwise specif
48、ied in the purchase order or contract, the manufacturer is responsible for the performance of allinspection and test requirements specified in this specification. Except as otherwise specified in the purchase order or contract, themanufacturer may use his own or any other suitable facilities for the
49、 performance of the inspection and test requirements unlessdisapproved by the purchaser at the time the order is placed. The purchaser shall have the right to perform any of the inspectionand tests set forth in this specification when such inspection and tests are deemed necessary to ensure that the material conformsto prescribed requirements.12. Rejection and Rehearing12.1 Material that fails to conform to the requirements of this specification may be rejected. Rejection should be reported to theproducer or supplier promptly and in writing. In cas
