ASTM A706 A706M-2006a Standard Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement.pdf
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1、Designation: A 706/A 706M 06aStandard Specification forLow-Alloy Steel Deformed and Plain Bars for ConcreteReinforcement1This standard is issued under the fixed designation A 706/A 706M; the number immediately following the designation indicates the yearof original adoption or, in the case of revisi
2、on, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) 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. Scope*1.1 GeneralThis specifi
3、cation covers deformed and plainlow-alloy steel bars in cut lengths or coils for concretereinforcement intended for applications where restrictive me-chanical properties and chemical composition are required forcompatibility with controlled tensile property applications or toenhance weldability. The
4、 standard sizes and dimensions ofdeformed bars and their number designations are given inTable 1. The text of this specification references notes andfootnotes that provide explanatory material. These notes andfootnotes, excluding those in tables and figures, shall not beconsidered as requirements of
5、 this specification.1.2 GradeBars are of a single minimum yield strengthlevel: namely, 60 000 psi 420 MPa, designated as Grade 60420.1.3 Plain rounds, in sizes up to and including 212 in. 63.5mm in diameter in coils or cut lengths, when ordered, shall befurnished under this specification. For ductil
6、ity properties(elongation and bending), test provisions of the nearest smallernominal diameter deformed bar size shall apply.1.4 Controlled Tensile PropertiesThis specification limitsmechanical properties (Table 2) to provide the desired yield/tensile properties for controlled tensile property appli
7、cations.1.5 WeldingThis specification limits chemical composi-tion (6.2) and carbon equivalent (6.4) to enhance the weldabil-ity of the material. When steel is to be welded, a weldingprocedure suitable for the chemical composition and intendeduse or service should be used. The use of the latest edit
8、ion ofANSI/AWS D1.4 is recommended. This document describesthe proper selection of the filler metals, preheat/interpasstemperatures, as well as, performance and procedure qualifi-cation requirements.1.6 This specification is applicable for orders in eitherinch-pound units (Specification A 706) or in
9、 SI units Specifi-cation A 706M.1.7 The values stated in either inch-pound units or SI unitsare to be regarded as standard. Within the text, the SI units areshown in brackets. The values stated in each system are notexact equivalents; therefore, each system must be used inde-pendently of the other.
10、Combining values from the two systemsmay result in nonconformance with this specification.2. Referenced Documents2.1 ASTM Standards:2A 6/A 6M Specification for General Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPilingA 370 Test Methods and Definitions for Mechanical Testi
11、ngof Steel ProductsA 510 Specification for General Requirements for WireRods and Coarse Round Wire, Carbon SteelA 510M Specification for General Requirements for WireRods and Coarse Round Wire, Carbon Steel MetricA 615/A 615M Specification for Deformed and PlainCarbon-Steel Bars for Concrete Reinfor
12、cementA 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for ShipmentA 706/A 706M Specification for Low-Alloy Steel De-formed and Plain Bars for Concrete ReinforcementA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsE29 Practice for Usin
13、g Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ANSI/AWS Standard:AWS D1.4 Structural Welding CodeReinforcing Steel32.3 Government Standards:MIL-STD-129 Marking for Shipment and Storage41This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stai
14、nless Steel, and Related Alloys and is the direct responsibility of SubcommitteeA01.05 on Steel Reinforcement.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 1974. Last previous edition approved in 2006 as A 706/A 706M 06.2For referenced ASTM standards, visit the ASTM
15、 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 the American Welding Society, P.O. Box 351040, 550 N.W. LeJeune Rd., Miami, FL 33126.4Avail
16、able from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. Or visit: http:/assist.daps.dla.mil/online.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700
17、, West Conshohocken, PA 19428-2959, United States.2.4 U.S. Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 deformations, ntransverse protrusions on a de-formed bar.3.1.2 deformed bar, nsteel bar with prot
18、rusions; a barthat is intended for use as reinforcement in reinforced concreteand related construction.3.1.3 DiscussionThe surface of the bar is provided withlugs or protrusions that inhibit longitudinal movement of thebar relative to the concrete surrounding the bar in suchconstruction. The lugs or
19、 protrusions conform to the provisionsof this specification.3.1.4 plain bar, nsteel bar without protrusions.3.1.5 rib, n longitudinal protrusions on a deformed bar.4. Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for material or
20、dered to thisspecification. Such requirements shall include, but are notlimited to, the following:4.1.1 Quantity (weight) mass,4.1.2 Name of material (low-alloy steel deformed and plainbars for concrete reinforcement),4.1.3 Size,4.1.4 Cut lengths or coils,4.1.5 Deformed or plain,4.1.6 Packaging (see
21、 Section 17),4.1.7 ASTM designation and year of issue.5. Material and Manufacture5.1 The bars shall be processed from properly identifiedheats of mold cast or strand cast steel.5.2 The steel shall be made by one of the followingprocesses: electric-furnace, basic-oxygen, or open-hearth.6. Chemical Co
22、mposition6.1 The chemical analysis of each heat shall be determinedin accordance with Test Methods A 751. The manufacturershall make the analysis on test samples taken preferably duringthe pouring of the heat. The percentages of carbon, manganese,phosphorus, sulfur, silicon, copper, nickel, chromium
23、, molyb-denum, and vanadium shall be determined.6.2 The chemical composition as shown by heat analysisshall be limited by the following:Element max, %CarbonManganese0.301.50Phosphorus 0.035Sulfur 0.045Silicon 0.506.3 Choice and use of alloying elements, combined withcarbon, phosphorus, and sulfur to
24、 give the mechanical proper-ties prescribed in Table 2 and Table 3, shall be made by themanufacturer. Elements commonly used include manganese,silicon, copper, nickel, chromium, molybdenum, vanadium,columbium, titanium, and zirconium.6.4 The heat analysis shall be such as to provide a carbonequivale
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