1、Designation: A576 90b (Reapproved 2012)A576 17Standard Specification forSteel Bars, Carbon, Hot-Wrought, Special Quality1This standard is issued under the fixed designation A576; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript 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 specificatio
3、n covers hot-wrought special quality carbon steel bars. Special quality bar applications include forging, heattreating, cold drawing, machining, and many structural uses. A guide for the selection of steel bars is contained in Practice A400.1.2 The bars shall be furnished in the grades specified in
4、Table 1. Sections and sizes of bar steel available are covered inSpecification A29/A29M. Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturershould be consulted regarding sections and sizes available in coils, produced to a chemical composition.1.3 Me
5、rchant quality hot-wrought carbon steel bars are covered in Specification A575.1.4 Some end uses may require superior surface quality, or special chemical restrictions, metallurgical characteristics, heattreatment, or surface finishes which the purchaser may obtain by designating one or more of the
6、available SupplementaryRequirements.1.5 The values stated in inch-pound units are to be regarded as standard.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of Inter
7、national 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-WroughtA400 Practice for Steel Bars, Selec
8、tion Guide, Composition, and Mechanical PropertiesA575 Specification for Steel Bars, Carbon, Merchant Quality, M-GradesE45 Test Methods for Determining the Inclusion Content of SteelE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.2 SAE Standard:SAE J 1086 Recomme
9、nded Practice for Numbering Metals and Alloys (UNS)33. Ordering Information3.1 Orders under this specification should include the following, as required, to describe adequately the desired material:3.1.1 Quantity (weight or number of bars),3.1.2 Name of material (hot-wrought carbon steel bars),3.1.3
10、 Dimensions,3.1.4 ASTM specification number and date of issue,3.1.5 Deoxidation practice (see 4.2.1),3.1.6 Grade designation or chemical composition limits (see 5.1 and Table 1),3.1.7 Coarse or fine grain steel (4.2.2),1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Sta
11、inless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.15on Bars.Current edition approved March 1, 2012Nov. 1, 2017. Published April 2012December 2017. Originally approved in 1967. Last previous edition approved in 20062012as A576 90b (2012). (2006). DOI: 10.1520/A0576-9
12、0BR12.10.1520/A0576-17.2 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.3 Available from Society of Automotive
13、 Engineers, SAE International (SAE), 400 Commonwealth Drive,Dr., Warrendale, PA 15096.15096, http:/www.sae.org.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 may not be
14、 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 the end of
15、 this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE 1 Grade Designations and Chemical Requirements of Hot-Wrought Carbon Steel BarsNOTE 1Grade designations and compositions correspond to the respective AISISAE designat
16、ions and compositions.UNS DesignationA Grade Heat Chemical Ranges and Limits, %Carbon Manganese Phosphorus, max Sulfur, maxBNonresulfurized Carbon SteelsC, D , E, F, GNonresulfurized Carbon SteelsC, D, E, F, GLow Manganese 1.00 % max or lessG10080 1008 0.10 max 0.300.50 0.040 0.050G10100 1010 0.080.
17、13 0.300.60 0.040 0.050G10120 1012 0.100.15 0.300.60 0.040 0.050G10150 1015 0.130.18 0.300.60 0.040 0.050G10160 1016 0.130.18 0.600.90 0.040 0.050G10170 1017 0.150.20 0.300.60 0.040 0.050G10180 1018 0.150.20 0.600.90 0.040 0.050G10190 1019 0.150.20 0.701.00 0.040 0.050G10200 1020 0.180.23 0.300.60 0
18、.040 0.050G10210 1021 0.180.23 0.600.90 0.040 0.050G10220 1022 0.180.23 0.701.00 0.040 0.050G10230 1023 0.200.25 0.300.60 0.040 0.050G10250 1025 0.220.28 0.300.60 0.040 0.050G10260 1026 0.220.28 0.600.90 0.040 0.050G10290 1029 0.250.31 0.600.90 0.040 0.050G10300 1030 0.280.34 0.600.90 0.040 0.050G10
19、350 1035 0.320.38 0.600.90 0.040 0.050G10370 1037 0.320.38 0.701.00 0.040 0.050G10380 1038 0.350.42 0.600.90 0.040 0.050G10390 1039 0.370.44 0.701.00 0.040 0.050G10400 1040 0.370.44 0.600.90 0.040 0.050G10420 1042 0.400.47 0.600.90 0.040 0.050G10430 1043 0.400.47 0.701.00 0.040 0.050G10440 1044 0.43
20、0.50 0.300.60 0.040 0.050G10450 1045 0.430.50 0.600.90 0.040 0.050G10460 1046 0.430.50 0.701.00 0.040 0.050G10490 1049 0.460.53 0.600.90 0.040 0.050G10500 1050 0.480.55 0.600.90 0.040 0.050G10530 1053 0.480.55 0.701.00 0.040 0.050G10550 1055 0.500.60 0.600.90 0.040 0.050G10600 1060 0.550.65 0.600.90
21、 0.040 0.050G10700 1070 0.650.75 0.600.90 0.040 0.050G10780 1078 0.720.85 0.300.60 0.040 0.050G10800 1080 0.750.88 0.600.90 0.040 0.050G10840 1084 0.800.93 0.600.90 0.040 0.050G10900 1090 0.850.98 0.600.90 0.040 0.050G10950 1095 0.901.03 0.300.50 0.040 0.050High Manganese 1.65 % max or lessG15130 15
22、13 0.100.16 1.101.40 0.040 0.050G15180 1518 0.150.21 1.101.40 0.040 0.050G15220 1522 0.180.24 1.101.40 0.040 0.050G15240 1524 0.190.25 1.351.65 0.040 0.050G15250 1525 0.230.29 0.801.10 0.040 0.050G15260 1526 0.220.29 1.101.40 0.040 0.050G15270 1527 0.220.29 1.201.50 0.040 0.050G15360 1536 0.300.37 1
23、.201.50 0.040 0.050G15410 1541 0.360.44 1.351.65 0.040 0.050G15470 1547 0.430.51 1.351.65 0.040 0.050G15480 1548 0.440.52 1.101.40 0.040 0.050G15510 1551 0.450.56 0.851.15 0.040 0.050G15520 1552 0.470.55 1.201.50 0.040 0.050G15610 1561 0.550.65 0.751.05 0.040 0.050G15660 1566 0.600.71 0.851.15 0.040
24、 0.050G15720 1572 0.650.76 1.001.30 0.040 0.050Resulfurized Carbon SteelsC, E , GResulfurized Carbon SteelsC, E, GG11090 1109 0.080.13 0.600.90 0.040 0.080.13G11100 1110 0.080.13 0.300.60 0.040 0.080.13G11160 1116 0.140.20 1.101.40 0.040 0.160.23G11170 1117 0.140.20 1.001.30 0.040 0.080.13G11180 111
25、8 0.140.20 1.301.60 0.040 0.080.13G11190 1119 0.140.20 1.001.30 0.040 0.240.33G11320 1132 0.270.34 1.351.65 0.040 0.080.13G11370 1137 0.320.39 1.351.65 0.040 0.080.13G11390 1139 0.350.43 1.351.65 0.040 0.130.20G11400 1140 0.370.44 0.701.00 0.040 0.080.13G11410 1141 0.370.45 1.351.65 0.040 0.080.13G1
26、1440 1144 0.400.48 1.351.65 0.040 0.240.33G11450 1145 0.420.49 0.701.00 0.040 0.040.07A576 1723.1.8 Test reports, if required (Section 7),3.1.9 Additions to the specification and Supplementary Requirements, if required, and3.1.10 End use.NOTE 1A typical ordering description is as follows: 10 000 10
27、000 lb, carbon steel bars, hot rolled 1 0001000 in. diameter by 10 ft, ASTM A576dated _, killed steel, Grade 1018, test reports required, coarse grain Supplementary Requirement S10, welded industrial fan hubs and shafts.4. Materials and Manufacture4.1 Melting PracticeThe steel shall be made by one o
28、r more of the following primary processes: open-hearth, basic-oxygen,or electric-furnace. any commercially viable primary steelmaking process. The primary melting may incorporate separatedegassing or refining and may be followed by secondary melting using electroslag remelting or vacuum arc remeltin
29、g. Wheresecondary melting is employed, the heat shall be defined as all of the ingots remelted from a single primary heat.4.2 Deoxidation:4.2.1 Unless otherwise specified, the steel shall be rimmed, capped, semi-killed, semi-killed or killed at the manufacturersoption.4.2.2 If killed steel is specif
30、ied, the purchaser may designate that the steel be made to coarse or fine austenitic grain size (seeS10 or S11).NOTE 2Assured coarse grain size is not always possible since certain elements or combination of elements or certain quantities of elements such asmanganese, sulfur, and lead tend to produc
31、e grain refinement.4.3 QualityThe bars shall be special quality.4.4 Hot FormingThe bars shall be hot wrought, as wrought.5. Chemical Composition5.1 The heat analysis shall conform to the requirements for chemical composition specified in Table 1 for the grade specified,or to such other limits as may
32、 be specified using the ranges and limits in Table 2.6. Workmanship, Finish, and Appearance6.1 DescalingWhen descaled bars are required, S15 on Pickling or S16 on Blast Cleaning must be specified.6.2 The bars shall be free of visible pipe and conditioned as necessary to remove injurious surface impe
33、rfections.7. Certification and Test Reports7.1 When specified by the purchaser, a manufacturers certification that the material was manufactured and tested in accordancewith this specification together with a report of the heat analysis test results for the specified elements and for copper, chromiu
34、m,nickel, molybdenum, vanadium, and columbium4 shall be furnished. When the amount of an element present is less than 0.02 %,the analysis may be reported as 0.02 %. The report shall include the name of the manufacturer, ASTM designation number andyear date and revision letter, if any, type and grade
35、, heat number, and size.4 Columbium (Cb) and Niobium (Nb) are alternate names for element 41 in the Periodic Table of the Elements.TABLE 1 ContinuedUNS DesignationA Grade Heat Chemical Ranges and Limits, %Carbon Manganese Phosphorus, max Sulfur, maxBG11460 1146 0.420.49 0.701.00 0.040 0.080.13G11510
36、 1151 0.480.55 0.701.00 0.040 0.080.13Rephosphorized and Resulfurized Carbon SteelEE, G, H,G,HDesignation Grade Carbon Manganese Phosphorus Sulfur LeadG12110 1211 0.13 max 0.600.90 0.070.12 0.100.15 .G12120 1212 0.13 max 0.701.00 0.070.12 0.160.23 .G12130 1213 0.13 max 0.701.00 0.070.12 0.240.33 .G1
37、2150 1215 0.09 max 0.751.05 0.040.09 0.260.35 . 12L14 0.15 max 0.851.15 0.040.09 0.260.35 0.150.35A New designations established in accordance with Practice E527 and SAE J 1086.B Maximum unless otherwise indicated.C When silicon is required, the following ranges and limits are commonly specified: 0.
38、10 %, max, 0.10 to 0.20 %, 0.15 to 0.35 %, or 0.20 to 0.40 %.D Copper can be specified when required as 0.20 % minimum.E When lead is required as an added element to a standard steel, a range of 0.15 to 0.35 % incl is specified. Such a steel is identified by inserting the letter “L” betweenthe secon
39、d and third numerals of the grade designation, for example, 10 L 45. A cast or heat analysis is not determinable when lead is added to the ladle stream.F When boron treatment is specified for killed steels, the steels can be expected to contain 0.0005 to 0.003 % boron.G The elements bismuth, calcium
40、, selenium, or tellurium may be added as agreed between purchaser and supplier.H It is not common practice to produce these steels to specified limits for silicon because of its adverse effect on machinability.A576 1737.2 When supplementary requirements are specified, the report shall include a stat
41、ement of compliance with the requirementor the results of tests when the requirement involves measured test values such as S12 on Restricted Incidental Elements.8. General Requirements8.1 Material furnished under this specification shall conform to the applicable requirements of the current edition
42、ofSpecification A29/A29M, unless otherwise provided herein.9. Keywords9.1 carbon steel bars; hot-wrought steel bars; steel barsTABLE 2 Heat Chemical Ranges and Limits of Hot-Wrought Carbon Steel BarsElementChemical Ranges and Limits, %When Maximum of SpecifiedSpecified Element is: Range Lowest Maxim
43、umCarbonA . . 0.06to 0.12 incl . .over 0.120.25 incl 0.05 .over 0.250.40 incl 0.06 .over 0.400.55 incl 0.07 .over 0.550.80 incl 0.10 .over 0.80 0.13 .Manganese . . 0.35to 0.40 incl 0.15 .over 0.400.50 incl 0.20 .over 0.501.65 incl 0.30 .Phosphorus to 0.040 inclover 0.0400.08 inclover 0.080.13 incl.0
44、.030.050.040.Sulfur to 0.050 incl . . . 0.050over 0.0500.09 incl 0.03 .over 0.090.15 incl 0.05 .over 0.150.23 incl 0.07 .over 0.230.50 incl 0.09 .SiliconB . . 0.10to 0.10 incl . .over 0.100.15 incl 0.08 .over 0.150.20 incl 0.10 .over 0.200.30 incl 0.15 .over 0.300.60 incl 0.20 .Copper When copper is
45、 required 0.20 min isgenerally specifiedLeadC, D When lead is required, a range of0.150.35 is specifiedBoron 0.0005minBismuthECalciumESeleniumETelluriumEA The carbon ranges shown in the column headed “Range” apply when the specified maximum limit for manganese does not exceed 1.10 %. When the maximu
46、mmanganese limit exceeds 1.10 %, add 0.01 to the carbon ranges shown above.B It is not common practice to produce a rephosphorized and resulfurized carbon steel to specified limits for silicon because of its adverse effect on machinability.C A heat analysis for lead is not determinable, since lead i
47、s added to the ladle stream while each ingot is poured.D It is not common practice to produce these steels to specified limits for silicon because of its adverse effect on machinability.E Element specification range as agreed to between purchaser and supplier.A576 174SUPPLEMENTARY REQUIREMENTSOne or
48、 more of the following supplementary requirements shall apply when specified by thepurchaser.S1. Cold-Working QualityS1.1 This classification encompasses bars subject to severe cold plastic deformation such as, but not limited to, upsetting,heading, forging, forward or backward extrusion.S1.2 If the
49、 type of steel or chemical composition does not have adequate cold working characteristics, appropriate thermaltreatments should be specified.S1.3 When S1 is specified, the bars shall be produced by manufacturing practices and subjected to mill tests and inspection andfreedom from injurious surface imperfections to the extent that the bars shall be suitable for the manufacture of ide
