1、Designation: D6255/D6255M 05 (Reapproved 2011)D6255/D6255M 18Standard Specification forSteel or Aluminum Slotted Angle Crates1This standard is issued under the fixed designation D6255/D6255M; the number immediately following the designation indicates theyear of original adoption or, in the case of r
2、evision, the year of last revision. A number in parentheses indicates the year of lastreapproval. 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
3、 specification covers the material and fabrication of new reusable metal (slotted angle) crates intended for use ascontainers for domestic and overseas shipment of lightweight airframe components and lightweight bulky items, not exceeding3000 lb 1361 kg for domestic or overseas air and surface shipm
4、ents.1.2 Slotted angle crate performance is dependent on its fabricated components; therefore, a variety of types, classes, and stylesreflecting varied performance are specified. This specification, however, does not cover slotted angle crate performance under allatmosphere, handling, shipping, and
5、storage conditions.1.3 If the use of other construction methods or techniques are acceptable and permitted (see 5.1.12), the resulting packagingsystems shall be of equal or better performance than would result from the use of these specified materials and procedures. Theappropriate distribution cycl
6、e specified in Practice D4169 can be used to develop comparative procedures and criteria.1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units areshown in brackets. The values stated in each system are not exact equivalents; t
7、herefore, each system must be used independentlyof the other. Combining values from the two systems may result in nonconformance with the standard. See IEEE/ASTM SI 10 forconversion of units.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It
8、 is the responsibilityof the user of thethis standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized pr
9、inciples on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A109/A109M Specification for St
10、eel, Strip, Carbon (0.25 Maximum Percent), Cold-RolledA123/A123M Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel ProductsA924/A924M Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip ProcessB209 Specification for Aluminum and Aluminum-Alloy
11、Sheet and PlateB633 Specification for Electrodeposited Coatings of Zinc on Iron and SteelD996 Terminology of Packaging and Distribution EnvironmentsD1990 Practice for EstablishingAllowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-SizeSpecimensD3951 Practice for Com
12、mercial PackagingD3953 Specification for Strapping, Flat Steel and SealsD4169 Practice for Performance Testing of Shipping Containers and SystemsD4727/D4727M Specification for Corrugated and Solid Fiberboard Sheet Stock (Container Grade) and Cut ShapesD6199 Practice for Quality of Wood Members of Co
13、ntainers and Pallets1 This specification is under the jurisdiction of ASTM Committee D10 on Packaging and is the direct responsibility of Subcommittee D10.12 on Shipping Containers,Crates, Pallets, Skids and Related Structures.Current edition approved April 1, 2011March 1, 2018. Published April 2011
14、April 2018. Originally approved in 1998. Last previous edition approved in 20052011 asD6255/D6255M 05.D6255/D6255M 05 (2011). DOI: 10.1520/D6255_D6255M-05R11.10.1520/D6255_D6255M-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.or
15、g. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit
16、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 is to be considered the official document.*A Summary of Changes section appears at
17、the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D6253 Practice for Treatment and/or Marking of Wood Packaging MaterialsF1667 Specification for Driven Fasteners: Nails, Spikes, and StaplesIEEE/ASTM SI 10 Standar
18、d for Use of the International System of Units (SI): The Modern Metric System2.2 Federal Specifications:TT-W-572 Wood Preservative: Water-Repellent32.3 National Institute of Standards and Technology (NIST)APA The Engineered Wood Association:PS1-95APA PS 1 Construction and Industrial PlywoodStructura
19、l Plywood (with Typical APA Trademarks) 42.4 American Society of Mechanical Engineers (ASME) Standards:B18.2.1 Square and Hex Bolts and Screws (Inch Series)5B18.2.2 Square and Hex Nuts (Inch Series)5B18.2.3.5M Metric Hex Bolts5B18.2.4.1M Metric Hex Nuts, Style 15B18.2.4.2MB18.2.6M Metric Hex Nuts, S
20、tyle 2Fasteners for Use in Structural Applications5B18.5 Round Head Bolts (Inch Series)5B18.5.2.2M Metric Round Head Square Neck Bolts52.5 Hardwood Plywood and Veneer Association:HPVA HP-1-1994 Hardwood and Decorative Plywood62.6 National Motor Freight Traffc Association:National Motor Freight Class
21、ification72.7 Uniform Classification Committee Standard:Uniform Freight Classification82.8 American Iron and Steel Institute (AISI) Standard:Cold-Formed Steel Design Manual92.9 International StandardsIPPC Standard:10ISPM Publication #1515 Regulation of Wood Packaging Material in International Trade3
22、. Terminology3.1 Definitions General definitions for packaging and distribution environments are found in Terminology D996.4. Classification4.1 Type:4.1.1 Type IOpen.4.1.2 Type IIFully-enclosed or sheathed with solid material.4.2 Class:4.2.1 Class 1Outside or indeterminate storage.4.2.2 Class 2Insid
23、e or protected storage.4.3 Style:4.3.1 Style AWithout skids or rubbing strips.4.3.2 Style BWith skid blocks or skids with rubbing strips and provisions for forklift truck handling.5. Ordering Information5.1 Purchasers should select the preferred permitted options and include the following informatio
24、n in procurement documents:5.1.1 Specification title, number, and date.5.1.2 Crate type, class, and style (see Section 4).5.1.3 Box inside dimensions specified in order of length by width by depth.5.1.4 Whether sanded plywood is required (see 6.1.5).5.1.5 Type sheathing required (see 7.6.1).5.1.6 Wh
25、ether full-length skids are required (see 7.7.3.2).5.1.7 Special features (see 7.9).5.1.8 Marking panel size (see 7.10.1).3 Available from the Federal Supply Service Bureau, Specification Section, Suite 8100, 480 LEnfant Plaza, SW, Washington, DC 20408.4 Available from National Institute of Standard
26、s and Technology (NIST), 100 Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.5 Available from the American Society of Mechanical Engineers, 345 East 47th St., New York, NY 10017; American National Standard (ANSI) adopted.6 Available from Hardwood Plywood and Veneer Association, P.O. Box 2789, Res
27、ton, VA 220900789; American National Standards Institute (ANSI) adopted.7 Available from National Motor Freight Traffic Association, American Trucking Associations, 2200 Mill Road, Alexandria, VA 22314.8 Available from the Uniform Classification Committee, Tariff Publishing Officer, 151 Ellis St., N
28、.E., Suite 200, Atlanta, GA 30335.9 Available from the American Iron and Steel Institute, ATTN: Publication Orders, P.O. Box 4327, Chestertown, MD 21690.10 International Plant Protection Convention Secretariat (IPPC), Viale delle Terme di Caracalla 00153 Rome, Italy, https:/www.ippc.int/en/.D6255/D6
29、255M 1825.1.9 Whether crates are to be shipped assembled or disassembled (see 8.1).5.1.10 Bolt and nut quantities required (see 6.1.2).5.1.11 If self-locking nuts are required (see 6.1.2).5.1.12 Whether other construction methods or techniques are acceptable and permitted (see 1.3).5.1.12.1 Whether
30、proof that other construction methods or techniques are acceptable (see 1.3) is required.5.1.13 All Non-manufactured wood packaging materials must be (WPM) used for export from or import to the United Statesshall comply with Practice D6253ISPM Publication 15 compliant. and the requirements of ISPM 1
31、5.5.1.13.1 These requirements are recommended for all WPM entering the DoD supply system.Any additional requirements shallbe specified in the contract or purchase order.6. Materials and Manufacture6.1 MaterialsIt is encouraged that recycled material be used when practical. All recovered, recycled, o
32、r virgin materials usedin crate manufacture shall meet the requirements of this specification and referenced documents. In addition, materials shall notaffect or be affected by the product being packed.6.1.1 Slotted Metal AngleSlotted metal angle shall conform to the Supplemental Requirements of thi
33、s specification.6.1.1.1 Slotted Angle Surface FinishSteel for Class 1 crates shall have a Class 3 surface finish (S4.7.1.3) applied. Steel forClass 2 crates shall have a Class 1 or 2 surface finish (S4.7.1.1 or S4.7.1.2) applied. Aluminum slotted angle shall require noadditional finish.6.1.2 Nuts an
34、d Bolts Nuts and bolts used to assemble the slotted angle shall be of hardened steel and zinc plated aftermachining. All other bolts and nuts shall be zinc-coated and conform to ASME B18.5 (B18.5.2.2M) or B18.2.1 (B18.2.3.5M), forbolts; and, B18.2.2 (B18.2.4.1M), for nuts.6.1.2.1 The slotted angle b
35、olts shall be minimum 516-in. 8-mm shank diameter, 58-in. 16-mm length for Types I, II, and IV,and 34-in. for Type III and 916-in. 14-mm hexagon head. Bolts shall have an unthreaded load bearing shoulder to prevent shearingaction on the threads. Bolts shall conform to ASME B18.2.1 (B18.2.3.5M).6.1.2
36、.2 The slotted angle nuts shall be prevailing torque, hexagon, self-locking, to prevent loosening after extendedstorage/handling and vibration during shipment. The 516-in. 8-mm nuts shall be 0.551 to 0.564-in. 13.99 to 14.33-mm acrossthe flats (width). Other size nuts shall be 916 in. 14 mm across t
37、he hexagon flats. Nuts shall conform to ASME B18.2.2(B18.2.4.2M).(B18.2.6M).6.1.3 StrappingSteel strapping used for banding or tension braces shall conform to Practice D3953, Type I, zinc-coated.6.1.4 Wood Members Wood used for skids, rubbing strips, load-bearing members, blocking and bracing, and a
38、ll other woodencomponents shall conform to the applicable Practice D6199, Group II, III or IV woods structural class and shall conform tocommercial standards in accordance with Practice D1990.6.1.5 PlywoodPlywood for Class 1 crates shall conform to ANSI/HPVA HP-1-1994, Type I, Grade 3-4; NIST PS1-95
39、, APAPS 1, Interior with Exterior Glue; or, NIST PS1-95, APA PS 1, Exterior, Grade C-C. Plywood for Class 2 crates shall conform toANSI/HPVAHP-1-1994,Type II, Grade 3-4; or, NISTPS1-95,APAPS 1, Interior, Grade C-D. Plywood shall have no defects (knotholes, worm holes, etc.) extending through the pan
40、el. Unless otherwise specified, plywood shall be finished unsanded (see 5.1.4).6.1.6 Wood PreservativeWood or plywood components shall be treated in accordance with TT-W-572, or a commercialequivalent.6.1.7 FiberboardFiberboard used for sheathing shall conform to Specification D4727/D4727M, Type SF,
41、 ClassWeather-Resistant, Grades V2s, V3s, or V4s.6.1.8 Sheet Steel Steel used for marking panels shall conform to Specification A109/A109M.6.1.9 NailsNails used to secure top sheathing shall be cement-coated or chemically-etched common or box nails conformingto Specification F1667.7. Construction7.1
42、 Slotted Angle Member SelectionSlotted angle selection shall be based on crate size and load weight. Tables 1-3 shall beused as a guide for slotted angle selection.7.2 Member SplicingSteel or aluminum components shall be continuous lengths. When splicing is necessary, four bolts(minimum) shall be us
43、ed to secure a lap splice and eight bolts (minimum) shall be used to secure a butt splice, as shown in Fig.1.7.3 Cutting Slotted Angle:7.3.1 All Members Members shall be cut at 3-in. 76-mm increments to utilize the slot and hole pattern properly. Aftercutting, members shall be trimmed to the require
44、d length.7.3.2 Diagonal Members When cutting of diagonals is required, the wide flange of the angle can be cut on a miter to providemaximum contact area and positive bolting locations.7.4 Construction One slotted metal angle crate shall have six faces (two sides, two ends, one top, and one base). Ea
45、ch faceshall be rectangular in shape and consist of one or more panels. A panel is an area bounded by slotted metal angle members.Normally, the sides are constructed and the ends, top, and base are used to hold the sides together.D6255/D6255M 1837.4.1 AssemblySlotted metal angle shall be assembled w
46、ith bolts of the same diameter for which the slotted metal angle wasintended or designed. Bolts and nuts shall be drawn tight to secure against loosening. Bolts and nuts shall be as specified in 6.1.2.7.4.2 BracesAll panels shall have either diagonal braces or steel strapping braces for support.7.4.
47、2.1 Diagonal Braces Diagonal brace placement is shown in Fig. 2. All diagonal braces shall be installed to maximizeutilization of the round holes in the metal angle.7.4.2.2 Full Diagonal BracesFull diagonal braces shall extend from one corner diagonally across to the other corner of thepanel being b
48、raced. The braces shall be installed as close as possible to the angle apex and shall be secured at each end with onebolt (minimum).7.4.2.3 Short or Corner BracesShort or corner braces shall be placed in each panel corner being braced and secured at eachend with one bolt (minimum). The braces shall
49、be installed at a 45 angle or as close to that angle as possible.TABLE 1 Slotted Angle Steel Beam Load CapacityASlotted Angle Steel12-Gage, 0.105-in. 2.7-mm112 by 3-in.38 by 76-mmBeam Length ft mm2 3 4 5 6600 900 1200 1500 1800Recommended Loadlb kg1450658980445740336500227350159Recommended Loadlb kg4500204131001406210095312005441000454Recommended Loadlb kg10400471775003402530024044350197335001588Recommended Loadlb kg15507031000454760345580263490222Slotted
