1、Designation: A663/A663M 12A663/A663M 17Standard Specification forSteel Bars, Carbon, Merchant Quality, MechanicalProperties1This standard is issued under the fixed designation A663/A663M; the number immediately following the designation indicates the yearof original adoption or, in the case of revis
2、ion, 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*1.1 This specifica
3、tion covers hot-wrought merchant quality carbon steel bars and bar size shapes produced to mechanicalproperty requirements and intended for noncritical constructional applications (see 7.2).1.2 Merchant quality hot-wrought steel bar is available in the following ranges of size and section:1.2.1 Roun
4、ds, squares, and hexagons with diameters or distance across flats under 3 in. 75 mm.1.2.2 Bar size shapes with maximum dimensions under 3 in. 75 mm.1.2.3 Other bar sections with weight per foot under 40.84 lbft 60.78 kg/m.1.2.4 Flats 6 in. 152 mm or under in width, over 0.203 in. over 5 mm in thickn
5、ess up to 150 mm in width in thickness, andunder 40.84 lb/ft or 12 in.2 77.4 77.4 cm2 in cross-sectional area.1.2.5 Flats over 6 in. to 8 in., inclusive in width, 0.230 in. and over over 6 mm in thickness and over 50 mm through 200 mmin width in thickness and under 40.84 lb/ft 60.78 kg/m or 12 in.2
6、77.4 cm2 in cross-sectional area.1.2.6 Hot-wrought merchant quality carbon steel bars subject to mechanical property requirements are hot wrought in straightlengths only.1.3 Some applications may require one or more of the available designations shown under supplementary requirements.NOTE 1Special q
7、uality hot-wrought carbon steel bars subject to mechanical property requirements are covered in Specification A675/A675M.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, ea
8、ch system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles
9、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:2A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-WroughtA370 Te
10、st Methods and Definitions for Mechanical Testing of Steel ProductsA675/A675M Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical PropertiesE290 Test Methods for Bend Testing of Material for Ductility3. Ordering Information3.1 Orders for material under this specification s
11、hould include the following information:3.1.1 Quantity (weight or number of pieces),3.1.2 Dimensions (cross-sectional shape, size, and length),3.1.3 Name of material (merchant quality carbon steel bars),1 This specification is under the jurisdiction of Committee A01 on Steel, Stainless Steel and Rel
12、ated Alloys and is the direct responsibility of Subcommittee A01.15 onBars.Current edition approved May 1, 2012Nov. 1, 2017. Published May 2012December 2017. Originally approved in 1972. Last previous edition approved in 20062012 asA663/A663M 89A663/A663M 12. (2006). DOI: 10.1520/A0663_A0663M-12. 10
13、.1520/A0663_A0663M-17.2 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.This document is not an ASTM standard a
14、nd is intended only to provide the user of an ASTM standard 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
15、 the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.4 Specification nu
16、mber and date of issue,3.1.5 Grade designation,3.1.6 Copper bearing steel (if required),3.1.7 Heat analysis or test report (request, if required),3.1.8 Application and processing, and3.1.9 Supplementary requirements (if required).4. Manufacture4.1 The steel shall be made by the basic-oxygen or elect
17、ric-furnace process.5. Chemical Composition5.1 The steel shall conform on heat analysis to the following chemical requirements:Phosphorus, max, percent 0.04Sulfur, max, percent 0.05Copper, when copper steel is specified, min, percent 0.206. Mechanical Properties6.1 Tensile Requirements:6.1.1 The mat
18、erial as represented by the test specimen shall conform to the applicable requirements in Table 1.6.1.2 Test specimens shall be prepared for testing from the material in its as-rolled condition. The tension specimen may be agedas described in Test Methods and Definitions A370.6.1.3 Test specimens sh
19、all be taken longitudinally and may be tested in full thickness or section, or they may be machined tothe dimensions shown in Figs. 4 or 5 of Test Methods and Definitions A370. If test specimens are selected conforming to thedimensions of Fig. 5, they shall be machined from a position midway between
20、 the center and the surface of the bar.6.1.4 Test specimens for shapes and flats may be machined to the form and dimensions shown in Fig. 4 of Test Methods andDefinitions A370 or with both edges parallel. Test specimens for material over 112 in. 40 mm in thickness or diameter may bemachined to a thi
21、ckness or diameter of at least 34 in. 20 mm for a length of at least 9 in. 230 mm, or they may conform to thedimensions shown in Fig. 5 of Test Methods and Definitions A370.6.1.5 Tensile requirements shall be determined in accordance with Test Methods and Definitions A370.6.1.6 For material over 34
22、in. 19 mm in thickness or diameter, a deduction from the percentage of elongation in 8 in. 200 mmspecified in Table 1 of 0.25 % shall be made for each increase of 132 in. 0.8 mm in the specified thickness or diameter above 34 in.19 mm.6.1.7 For material under 516 in. 8 mm in thickness or diameter, a
23、 deduction from the percentage of elongation in 8 in. 200mm specified in Table 1 of 2.00 % shall be made for each decrease of 132 in. 0.8 mm in the specified thickness or diameter below516 in. 8 mm.6.1.8 For material over 2 in. 50 mm in thickness or diameter, a deduction from the percentage of elong
24、ation in 2 in. 50 mmspecified in Table 1 of 1.00 % shall be made for each 1 in. 25 mm of specified thickness or diameter or fraction thereof over 2in. 50 mm in thickness or diameter.TABLE 1 Tensile RequirementsElongation, min, %GradeDesignationTensile Strength,ksi MPaYield Point,Amin, ksi MPa8-in. o
25、r200-mmGage Length2-in. or50-mmGage Length45 310 4555 310380 25.0 175 27 3345 310 4560 310415 25.0 175 27 3350 345 5060 345415 28.0 195 25 3050 345 5065 345450 28.0 195 25 3055 380 5565 380450 30.0 210 23 2655 380 5570 380485 30.0 210 23 2660 415 6072 415495 33.0 230 21 2260 415 6075 415515 33.0 230
26、 21 2265 450 6577 450530 36.0 250 17 2065 450 6580 450550 36.0 250 17 2070 485 7085 485585 39.0 270 14 1875 515 7590 515620 41.0 285 14 1880 550 80 min 550 min 44.0 305 13 17A When the tension test does not show a yield point (drop of the beam, halt of thepointer or sharp-kneed stress-strain diagram
27、), yield strength shall be determinedby either 0.5 % extension-under-load or 0.2 % offset. The minimum ksi (MPa)requirement does not change. The test report, if required, shall show yieldstrength.A663/A663M 1726.2 Number of Tests:6.2.1 Two tension tests shall be made from each heat, unless the finis
28、hed material from a heat is less than 50 tons 45 Mg, whenone tension test will be sufficient. However, for material 2 in. 50 mm and under in thickness, when the material from one heatdiffers 38 in. 9.5 mm or more in thickness, one tension test shall be made from both the thickest and the thinnest ma
29、terial rolled,regardless of weight represented. For material over 2 in. 50 mm thick, when the material from one heat differs 1 in. 25 mmor more in thickness, one tension test shall be made from both the thickest and the thinnest material rolled that is more than 2 in.50 mm thick regardless of the we
30、ight represented.6.3 Test Reports:6.3.1 When test reports are required by the purchase order, the report shall show the results of each test required by 6.2, exceptthat only one test need be reported when the amount of material from a heat in a shipment is less than 10 tons 9 Mg and whenthe thicknes
31、s variations described in 6.2 are not exceeded.6.3.2 The thickness of the product tested may not necessarily be the same as an individual ordered thickness since it is the heatthat is tested rather than each ordered item.6.3.3 When Supplementary Requirements are specified, the report shall include a
32、 statement of compliance with the requirementor the results of tests when the requirement involves measured test values.7. General Requirements7.1 Material furnished under this specification shall conform to the requirements of the current edition of SpecificationA29/A29M, except as stated in 1.2 an
33、d 3.27.2 Merchant quality bars shall be free from visible pipe; however, they may contain pronounced chemical segregation. Internalporosity, surface seams, and other surface irregularities may be present in this quality. Deoxidation practice and grain size are atthe manufacturers option.7.3 Unless o
34、therwise specified, the bars shall be furnished as rolled and not pickled, blast cleaned, or oiled.8. Keywords8.1 carbon steel bars; merchant quality steel bars; steel barsSUPPLEMENTARY REQUIREMENTSOne or more of the following supplementary requirements shall apply when specified by thepurchaser.S1.
35、 Special StraightnessS1.1 Bars may be specified to special straightness tolerance (refer to Specification A29/A29M).S2. CleaningS2.1 The purchaser may specify that the surface of bars be descaled by pickling or blast cleaning.S3. CoatingS3.1 The purchaser may specify oil on bars which have been desc
36、aled.S4. Bend TestsS4.1 Requirements:S4.1.1 The bend test specimen shall stand being bent at room temperature through 180 without cracking on the outside of thebent portion, to an inside diameter which shall have the relation to the thickness or diameter of the specimen as given in TableS4.1.S4.2 Te
37、st Specimens:S4.2.1 Bend test specimens for material 112 in. 40 mm and under in diameter or thickness may be the full thickness of thesection. For flat bars over 2 in. 50 mm in width, the width may be reduced by milling to 112 in. 40 mm.A663/A663M 173S4.2.2 Bend test specimens for material over 112
38、in. 40 mm in diameter or thickness may be machined to a thickness ordiameter of at least 34 in. 20 mm or to 1 in. by 12 in. 25 by 12.5 mm in section. Machined sides of bend test specimens mayhave the corners rounded to a radius of not over 116 in. 1.6 mm for material 2 in. 50 mm and under in thickne
39、ss, and not over18 in. 3.2 mm in radius for material over 2 in. 50 mm in thickness.S4.3 Number of Tests:S4.3.1 Two bend tests shall be made from each heat unless the finished material from a heat is less than 50 tons 45 Mg whenone bend test will be sufficient. However, for material 2 in. 50 mm and u
40、nder in thickness, when the material from one heat differs38 in. 9.5 mm or more in thickness, one bend test shall be made from the thickest and the thinnest material rolled, regardless ofweight represented. For material over 2 in. 50 mm thick, when the material from one heat differs 1 in. 25 mm or m
41、ore inthickness, one bend test shall be made from both the thickest and the thinnest material rolled that is more than 2 in. 50 mm thickregardless of the weight represented.S4.4 Test Methods:S4.4.1 Bend tests shall be made in accordance with Test Methods E290.SUMMARY OF CHANGESCommittee A01 has iden
42、tified the location of selected changes to this standard since the last issue(A663/A663M 89A663/A663M (2006) 12 that may impact the use of this standard. (Approved Nov. 1,2017May 1, 2012.).)(1) RemovedIn Table 1previous subsection 6.1.6., revised tensile ranges for Grades 45, 50, 55, 60, and 65.ASTM
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44、irely 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 withdrawn.Your comments are invited either for revision of this standard or for additional standardsand
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46、 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 (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at
47、 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:/ S4.1 Bend Requirem
48、entsRatio of Bend Diameter to Thickness of Specimenfor Thickness or Diameter of Bar, in. (mm)GradeDesignation34 20andUnderOver 34 20to1 25, inclOver 1 25to112 40,inclOver 112 40to2 50,2 50,inclOver 2 50to under3 7545 310 flat flat 12 1 150 345 flat 12 1 112 21255 380 12 1 112 2 21260 415 12 1 112 212 365 450 1 112 2 3 31270 485 112 2 212 3 31275 515 2 2 3 312 480 550 2 212 3 312 4A663/A663M 174
