ASTM A663 A663M-2012 Standard Specification for Steel Bars Carbon Merchant Quality Mechanical Properties《商品级碳素钢棒的机械特性标准规格》.pdf

1、Designation:A663/A663M89 (Reapproved 2006) Designation: A663/A663M 12Standard 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 ado

2、ption or, in the case of revision, 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 Department of Defense.1.

3、 Scope*1.1 This specification 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 si

4、ze and section:1.2.1 Rounds, 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 lb/ft 60.78 kg/m.1.2.4 Flats 6 in. 152 mm or under in width, over 0.2

5、03 in. over 5 mm in thickness up to 150 mm in width in thickness, andunder 40.84 lb/ft or 12 in.277.4 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

6、.78 kg/m or 12 in.277.4 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 requireme

7、nts.NOTE 1Special quality 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 equival

8、ents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements forA370 Te

9、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

10、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),3.1.4 Specification number and date of issue,3.1.5 Grade designation,3.1.6 Copper bearing steel (

11、if required),3.1.7 Heat analysis or test report (request, if required),3.1.8 Application and processing, and1This specification is under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.15 onBars.Current edition appro

12、ved MarchMay 1, 2006.2012. Published April 2006.May 2012. Originally approved in 1972. Last previous edition approved in 20002006 asA663/A663M 89 (2000).(2006). DOI: 10.1520/A0663_A0663M-89R06. 10.1520/A0663_A0663M-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact A

13、STM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This 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 m

14、ade 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 is to be considered the official document.*A

15、 Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.9 Supplementary requirements (if required).4. Manufacture4.1 The steel shall be made by the open-hearth, basic-oxygen,

16、basic-oxygen or electric-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 0.205.2When tension tests are waived in accor

17、dance with 6.1.6, chemistry consistent with the mechanical properties desired shallbe applied.6. Mechanical Properties6.1 Tensile Requirements:6.1.1 The material as represented by the test specimen shall conform to the applicable requirements in Table 1.6.1.2 Test specimens shall be prepared for tes

18、ting 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 shall 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 Te

19、st Methods and Definitions A370. If test specimens are selected conforming to thedimensions of Fig. 5, they shall be machined from a position midway between 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 T

20、est 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 thickness or diameter of at least34 in. 20 mm for a length of at least 9 in. 230 mm, or they may conform tothe dimensions shown in Fig. 5 of Test M

21、ethods and Definitions A370.6.1.5 Tensile requirements shall be determined in accordance with Test Methods and Definitions A370.6.1.6Shapes less than 1 in.2645 mm2 in cross section and bars (other than flats) less than12 in. 12.5 mm in thickness ordiameter need not be subject to tension tests by the

22、 manufacturer.6.1.7For material over346.1.6 For material over34 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 of132 in. 0.8 mm in the specified thickness or diameter above34 in. 19 mm.6.

23、1.8For material under5166.1.7 For material under516 in. 8 mm in thickness or diameter, a deduction from the percentage of elongation in 8 in. 200mm specified in Table 1 of 2.00 % shall be made for each decrease of132 in. 0.8 mm in the specified thickness or diameter below516 in. 8 mm.6.1.9For6.1.8 F

24、or material over 2 in. 50 mm in thickness or diameter, a deduction from the percentage of elongation in 2 in.50 mm specified in Table 1 of 1.00 % shall be made for each 1 in. 25 mm of specified thickness or diameter or fraction thereofover 2 in. 50 mm in thickness or diameter.6.2 Number of Tests:6.2

25、.1 Two tension tests shall be made from each heat, unless the finished 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 heatdiffers38 in. 9.5 mm or more in thickness, one ten

26、sion test shall be made from both the thickest and the thinnest material rolledTABLE 1 Tensile RequirementsElongation, min, %GradeDesignationTensile Strength,ksi MPaYield Point,Amin, ksi MPa8-in. or 200-mmGage Length2-in. or 50-mmGage Length45 310 4555 310380 25.0 175 27 3350 345 5060 345415 28.0 19

27、5 25 3055 380 5565 380450 30.0 210 23 2660 415 6072 415495 33.0 230 21 2265 450 6577 450530 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 17AWhen the tension test does not show a yield point (drop of the beam, halt ofthe pointer or

28、sharp-kneed stress-strain diagram), yield strength shall be deter-mined by 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 122(larger than the sizes enumerated in 6.1.6),rolled, reg

29、ardless of weight represented. For material over 2 in. 50 mm thick, whenthe material from one heat differs 1 in. 25 mm or more in thickness, one tension test shall be made from both the thickest andthe thinnest material rolled that is more than 2 in. 50 mm thick regardless of the weight represented.

30、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 thickness variations desc

31、ribed 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 statement of com

32、pliance 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 and 3.2.7.2 Merchan

33、t 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 otherwise specifi

34、ed, 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. Special Straigh

35、tnessS1.1 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 descaled.S4. Bend Te

36、stsS4.1 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 Table S4.1.S4.2 Test Specimens:S4

37、.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.TABLE S4.1 Bend RequirementsRatio of Bend Diameter to Thickness of Specimenfor

38、 Thickness or Diameter of Bar, in. (mm)GradeDesignation34 20andUnderOver34 20to1 25, inclOver 1 25 to112 40,inclOver 112 40to250,inclOver 2 50to under3 7545 310 flat flat12 1150 345 flat12 1112 21255 38012 1112 221260 4151212 212 365 450 1 112 231270 485 112 2212 331275 515 2 2 3 312 480 550 2 212 3

39、312 4A663/A663M 123S4.2.2 Bend test specimens for material over 112 in. 40 mm in diameter or thickness may be machined to a thickness ordiameter of at least34 in. 20 mm or to 1 in. by12 in. 25 by 12.5 mm in section. Machined sides of bend test specimens mayhave the corners rounded to a radius of not

40、 over116 in. 1.6 mm for material 2 in. 50 mm and under in thickness, 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

41、 test will be sufficient. However, for material 2 in. 50 mm and under 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 m

42、m thick, when the material from one heat differs 1 in. 25 mm or more 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 accordanc

43、e with Test Methods E290.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A663/A663M 89 (2006) that may impact the use of this standard. (Approved May 1, 2012.)(1) Removed previous subsection 6.1.6.ASTM International takes no posit

44、ion respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibilit

45、y.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 should be addressed to ASTM

46、 International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address s

47、hown 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 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 ASTM website (www.astm.org/COPYRIGHT/).A663/A663M 124