1、Designation: A 663/A 663M 89 (Reapproved 2006)Standard Specification forSteel Bars, Carbon, Merchant Quality, MechanicalProperties1This standard is issued under the fixed designation A 663/A 663M; the number immediately following the designation indicates the yearof original adoption or, in the case
2、 of revision, 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. Scope1.1 This speci
3、fication covers hot-wrought merchant qualitycarbon steel bars and bar size shapes produced to mechanicalproperty requirements and intended for noncritical construc-tional applications (see 7.2).1.2 Merchant quality hot-wrought steel bar is available inthe following ranges of size and section:1.2.1 R
4、ounds, squares, and hexagons with diameters ordistance 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 under40.84 lb/ft 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,and under 40.84 lb/ft or 12 in.277.4 cm2 in cross-sectionalarea.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 200mm in width in thickness and under 40.84 lb/ft 60.78 kg/mor 12 in.277.4 cm2 i
6、n cross-sectional area.1.2.6 Hot-wrought merchant quality carbon steel bars sub-ject to mechanical property requirements are hot wrought instraight lengths only.1.3 Some applications may require one or more of theavailable designations shown under supplementary require-ments.NOTE 1Special quality ho
7、t-wrought carbon steel bars subject tomechanical property requirements are covered in Specification A 675/A 675M.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem
8、shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:2A 29/A 29M Specification for Steel Bars, Carbon andAlloy,Hot-Wrought, General Requirements forA 370 Test Methods and Definitions fo
9、r Mechanical Testingof Steel ProductsA 675/A 675M Specification for Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical PropertiesE 290 Test Methods for Bend Testing of Material forDuctility3. Ordering Information3.1 Orders for material under this specification shouldinclude the following i
10、nformation: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 (if required),3.1.7 Heat analy
11、sis 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 SubcommitteeA01.15 on Bars.Current edition approved March 1, 2006. Published A
12、pril 2006. Originallyapproved in 1972. Last previous edition approved in 2000 as A 663/A 663M 89(2000).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards
13、 Document Summary page onthe ASTM website.1Copyright 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, or electric-furnace
14、process.5. Chemical Composition5.1 The steel shall conform on heat analysis to the followingchemical requirements:Phosphorus, max, percent 0.04Sulfur, max, percent 0.05Copper, when copper steel is specified, min, percent 0.205.2 When tension tests are waived in accordance with 6.1.6,chemistry consis
15、tent with the mechanical properties desiredshall be applied.6. Mechanical Properties6.1 Tensile Requirements:6.1.1 The material as represented by the test specimen shallconform to the applicable requirements in Table 1.6.1.2 Test specimens shall be prepared for testing from thematerial in its as-rol
16、led condition. The tension specimen maybe aged as described in Test Methods and Definitions A 370.6.1.3 Test specimens shall be taken longitudinally and maybe tested in full thickness or section, or they may be machinedto the dimensions shown in Figs. 4 or 5 of Test Methods andDefinitions A 370. If
17、test specimens are selected conforming tothe dimensions of Fig. 5, they shall be machined from aposition midway between the center and the surface of the bar.6.1.4 Test specimens for shapes and flats may be machinedto the form and dimensions shown in Fig. 4 of Test Methodsand Definitions A 370 or wi
18、th both edges parallel. Test speci-mens for material over 112 in. 40 mm in thickness ordiameter may be machined to a thickness or diameter of at least34 in. 20 mm for a length of at least 9 in. 230 mm, or theymay conform to the dimensions shown in Fig. 5 of TestMethods and Definitions A 370.6.1.5 Te
19、nsile requirements shall be determined in accor-dance with Test Methods and Definitions A 370.6.1.6 Shapes less than 1 in.2645 mm2 in cross section andbars (other than flats) less than12 in. 12.5 mm in thicknessor diameter need not be subject to tension tests by themanufacturer.6.1.7 For material ov
20、er34 in. 19 mm in thickness ordiameter, a deduction from the percentage of elongation in 8 in.200 mm specified in Table 1 of 0.25 % shall be made for eachincrease of132 in. 0.8 mm in the specified thickness ordiameter above34 in. 19 mm.6.1.8 For material under516 in. 8 mm in thickness ordiameter, a
21、deduction from the percentage of elongation in 8 in.200 mm specified in Table 1 of 2.00 % shall be made for eachdecrease of132 in. 0.8 mm in the specified thickness ordiameter below516 in. 8 mm.6.1.9 For material over 2 in. 50 mm in thickness ordiameter, a deduction from the percentage of elongation
22、 in 2 in.50 mm specified in Table 1 of 1.00 % shall be made for each1 in. 25 mm of specified thickness or diameter or fractionthereof over 2 in. 50 mm in thickness or diameter.6.2 Number of Tests:6.2.1 Two tension tests shall be made from each heat, unlessthe finished material from a heat is less th
23、an 50 tons 45 Mg,when one tension test will be sufficient. However, for material2 in. 50 mm and under in thickness, when the material fromone heat differs38 in. 9.5 mm or more in thickness, onetension test shall be made from both the thickest and thethinnest material rolled (larger than the sizes en
24、umerated in6.1.6), regardless of weight represented. For material over 2 in.50 mm thick, when the material from one heat differs 1 in.25 mm or more in thickness, one tension test shall be madefrom both the thickest and the thinnest material rolled that ismore than 2 in. 50 mm thick regardless of the
25、 weightrepresented.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,except that only one test need be reported when the amount ofmaterial from a heat in a shipment is less than 10 tons 9 Mgand when the thicknes
26、s variations described in 6.2 are notexceeded.6.3.2 The thickness of the product tested may not necessar-ily be the same as an individual ordered thickness since it is theheat that is tested rather than each ordered item.6.3.3 When Supplementary Requirements are specified, thereport shall include a
27、statement of compliance with therequirement or the results of tests when the requirementinvolves measured test values.7. General Requirements7.1 Material furnished under this specification shall con-form to the requirements of the current edition of SpecificationA 29/A 29M, except as stated in 1.2 a
28、nd 3.2.7.2 Merchant quality bars shall be free from visible pipe;however, they may contain pronounced chemical segregation.Internal porosity, surface seams, and other surface irregularitiesmay be present in this quality. Deoxidation practice and grainsize are at the manufacturers option.7.3 Unless o
29、therwise specified, the bars shall be furnished asrolled and not pickled, blast cleaned, or oiled.8. Keywords8.1 carbon steel bars; merchant quality steel bars; steel barsTABLE 1 Tensile RequirementsElongation, min, %GradeDesignationTensile Strength,ksi MPaYield Point,Amin, ksi MPa8-in. or 200-mmGag
30、e Length2-in. or 50-mmGage Length45 310 4555 310380 25.0 175 27 3350 345 5060 345415 28.0 195 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 17
31、AWhen the tension test does not show a yield point (drop of the beam, halt ofthe pointer or 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, sh
32、all show yieldstrength.A 663/A 663M 89 (2006)2SUPPLEMENTARY REQUIREMENTSOne or more of the following supplementary requirements shall apply when specified by thepurchaser.S1. Special StraightnessS1.1 Bars may be specified to special straightness tolerance(refer to Specification A 29/A 29M).S2. Clean
33、ingS2.1 The purchaser may specify that the surface of bars bedescaled by pickling or blast cleaning.S3. CoatingS3.1 The purchaser may specify oil on bars which havebeen descaled.S4. Bend TestsS4.1 Requirements:S4.1.1 The bend test specimen shall stand being bent atroom temperature through 180 withou
34、t cracking on theoutside of the bent portion, to an inside diameter which shallhave the relation to the thickness or diameter of the specimenas given in Table S4.1.S4.2 Test Specimens:S4.2.1 Bend test specimens for material 112 in. 40 mm andunder in diameter or thickness may be the full thickness of
35、 thesection. For flat bars over 2 in. 50 mm in width, the widthmay be reduced by milling to 112 in. 40 mm.S4.2.2 Bend test specimens for material over 112 in.40 mm in diameter or thickness may be machined to athickness or diameter of at least34 in. 20 mm or to 1 in. by12 in. 25 by 12.5 mm in section
36、. Machined sides of bend testspecimens may have the corners rounded to a radius of not over116 in. 1.6 mm for material 2 in. 50 mm and under inthickness, and not over18 in. 3.2 mm in radius for materialover 2 in. 50 mm in thickness.S4.3 Number of Tests:S4.3.1 Two bend tests shall be made from each h
37、eat unlessthe finished material from a heat is less than 50 tons 45 Mgwhen one bend test will be sufficient. However, for material2 in. 50 mm and under in thickness, when the material fromone heat differs38 in. 9.5 mm or more in thickness, one bendtest shall be made from the thickest and the thinnes
38、t materialrolled, regardless of weight represented. For material over 2 in.50 mm thick, when the material from one heat differs 1 in.25 mm or more in thickness, one bend test shall be madefrom both the thickest and the thinnest material rolled that ismore than 2 in. 50 mm thick regardless of the wei
39、ghtrepresented.S4.4 Test Methods:S4.4.1 Bend tests shall be made in accordance with TestMethods E 290.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that de
40、termination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely 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
41、or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel t
42、hat your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on 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 reprint
43、s (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).TABLE S4.1 Bend RequirementsRatio of Bend Diameter to Thickness of Specimenfor
44、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 3312 4A 663/A 663M 89 (2006)3
