1、Designation: A 1039/A 1039M 09Standard Specification forSteel, Sheet, Hot Rolled, Carbon, Commercial, Structural,and High-Strength Low-Alloy, Produced by Twin-RollCasting Process1This standard is issued under the fixed designation A 1039/A 1039M; the number immediately following the designation indi
2、cates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers commercial and
3、structuralsteel sheet in coils and cut lengths produced by the twin-rollcasting process.1.2 The steel sheet is available in the designations listed inSection 4.1.3 The material is available in the following sizes:Thickness0.027 in. 0.7 mm to 0.078 in. 2.0 mmWidthup to 79 in. 2000 mm1.4 The values st
4、ated 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 shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.NOTE
5、 1A description of the Twin-Roll Casting Process is included inAppendix X1.2. Referenced Documents2.1 ASTM Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 568/A 568M Specification for Steel, Sheet, Carbon,Structural, and High-Strength, Low-Alloy, Hot-Rolled and
6、Cold-Rolled, General Requirements forA 941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and Ferroalloys3. Terminology3.1 DefinitionsFor definitions of other terms used in thisspecification refer to Terminology A 941.3.2 Definitions of Terms Specific to This Standard:3.2.1 twin ro
7、ll casting process, nproduction of steel sheetdirectly from liquid metal.3.2.1.1 DiscussionThe properties of the steel sheet are theresult of the control of the casting conditions, and in somecases, through a combination of the casting process and hotrolling of the sheet.4. Classification4.1 Twin-ro
8、ll cast steel sheet is available in the followingdesignations:4.1.1 Commercial steel (CS Types A, B, and D), and4.1.2 Structural steel (SS Grades 40 275, 50 340, 55380, 60 410, 70 480, and 80 550), and4.1.3 High-Strength Low-Alloy steel (HSLAS, classes 1and 2 in grades 45 310, 50 340, 55 380, 60 410
9、, 65450, 70 480 and 80 550.5. Ordering Information5.1 It is the purchasers responsibility to specify in thepurchase order all ordering information necessary to describethe required material. Examples of such information include,but are not limited to, the following:5.1.1 ASTM specification number an
10、d year of issue,5.1.2 Name of material and designation (direct cast or hotrolled sheet) (include grade and class, and limits for Cu, Ni, Cr,and Mo as appropriate, for CS, SS, and HSLAS) (see 4.1),5.1.2.1 When a type is not specified for CS, Type B will befurnished,5.1.2.2 When a class for HSLAS is n
11、ot specified, Class 1will be furnished.5.1.2.3 When limits for Cu, Ni, Cr, and Mo are notspecified, limit H will be furnished.5.1.3 Finish (see 9.1),5.1.4 Type of edge (see 9.3),5.1.5 Oiled or not oiled, as required (see 9.2),5.1.6 Dimensions (thickness, thickness tolerance table (see5.1.6.1), width
12、, and whether cut lengths or coils),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.19 on Steel Sheet and Strip.Current edition approved May 1, 2009. Published May 2009. Originallyappr
13、oved in 2004. Last previous edition approved in 2004 asA 1039/A 1039M 04.2For 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 Document Summary page onthe A
14、STM website.1*A 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.5.1.6.1 As agreed upon between the purchaser and theproducer, material ordered to this specification will b
15、e suppliedto meet the appropriate thickness tolerance table shown inSpecification A 568/A 568M.5.1.7 Coil size (inside diameter, outside diameter, and maxi-mum weight),5.1.8 Copper bearing steel, (if required),5.1.9 Quantity,5.1.10 Application (part identification and description), and5.1.11 Special
16、 requirements,5.1.12 A report of heat analysis will be supplied, if re-quested, for CS. For materials with required mechanicalproperties, SS, a report is required of heat analysis andmechanical properties as determined by the tension test.NOTE 2A typical ordering description is as follows: ASTM A 10
17、39/A 1039M steel sheet, CS Type A, pickled and oiled, cut edge, 0.075 by 36by 96 in., thickness tolerance Table 4 of Specification A 568/A 568M.100 000 lb, for part no. 6310, for shelf bracket, orASTM A 1039/A 1039M, hot rolled steel sheet, SS Grade 40, pickledand oiled, cut edge, 1.5 by 117 mm by c
18、oil, ID 600 mm, OD 1500 mm,max weight 10 000 kg, thickness tolerance Table A1.1 of SpecificationA 568/A 568M, 100 000 kg, for part number A4885 for lower housing.6. General Requirements for Delivery6.1 Material furnished under this specification shall con-form to the applicable requirements of the c
19、urrent edition ofSpecification A 568/A 568M for steel sheet.7. Chemical Composition7.1 The heat analysis of the steel shall conform to thechemical requirements of the appropriate designation shown inTable 1 for CS, Table 2 for SS and HSLAS, and Table 3 for Cu,Ni, Cr, and Mo.7.2 Each of the elements
20、listed in Tables 1 and 2 shall beincluded in the report of the heat analysis. When the amount ofcopper, nickel, chromium, or molybdenum is less than 0.02 %,the analysis shall be reported as “0.02 %” or the actualdetermined value. When the amount of vanadium, columbium,or titanium is less than 0.008
21、%, the analysis shall be reportedas “0.008 %”or the actual determined value.7.3 Sheet steel grades defined by this specification aresuitable for welding if appropriate welding conditions areselected. Certain welding processes may require more restric-tive composition limits than those included in Ta
22、ble 1 or Table2, and in these cases, the restrictive limits shall be reviewedwith the producer at the time of inquiry and ordering.NOTE 3The twin-roll cast product may be deoxidized using eithersilicon or aluminum.8. Mechanical Properties8.1 CS:8.1.1 Typical, non-mandatory mechanical properties for
23、CSare found in Table 4.8.1.2 The material shall be capable of being bent at roomtemperature in any direction through 180 flat on itself withoutcracking on the outside of the bent portion (see section on bendtest of Test Methods and Definitions A 370).8.2 SS and HSLAS:8.2.1 The available grades and c
24、orresponding mechanicalproperty requirements for SS and HSLAS steels are shown inTable 5.8.2.2 Tension Tests:8.2.2.1 RequirementsMaterial as represented by the testspecimen shall conform to the mechanical property require-ments specified in Table 5.8.2.2.2 Number of TestsTwo tension tests shall be m
25、adefrom each heat or from each 50 tons 45 000 kg. When theamount of finished material from a heat is less than 50 tons45 000 kg, one tension test shall be made. When materialrolled from one heat differs 0.050 in. 1.27 mm or more inthickness, one tension test shall be made from the thickest andthinne
26、st material regardless of the weight represented.8.2.2.3 Tension test specimens shall be taken at a pointimmediately adjacent to the material to be qualified.8.2.2.4 Tension test specimens shall be taken from the fullthickness of the sheet as rolled.8.2.2.5 Tension test specimens shall be taken from
27、 a loca-tion approximately halfway between the center of sheet and theedge of the material as-cast or as-rolled.8.2.2.6 Tension test specimens shall be taken with thelengthwise axis of the test specimen parallel to the rollingdirection (longitudinal test).8.2.2.7 Test MethodYield strength shall be d
28、etermined byeither the 0.2 % offset method or the 0.5 % extension underload method unless otherwise specified.8.2.3 Bending Properties:8.2.3.1 The suggested minimum inside radii for cold bend-ing are listed in Appendix X2. More detail on this topic isprovided in the section on Mechanical Properties
29、of Specifi-cation A 568/A 568M. Where a tighter bend radius is required,or where curved or offset bends are involved, or wherestretching or drawing are also a consideration, the producershall be consulted.9. Finish and Appearance9.1 Surface Finish:TABLE 1 Chemical RequirementsAfor Twin Roll Cast Hot
30、 Rolled Steel Sheet Designations CSComposition, % Heat Analysis, Element Maximum Unless Otherwise ShownCMnPSAlBSi CuCNi Cr Mo V Cb Ti NCS Type AD0.10 0.70 0.030 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.008 . . .CS Type B 0.02 to 0.15 0.70 0.030 0.035 . . . . . . 0.20 0.20 0.15 0.06 0.008
31、0.008 0.008 . . .CS Type D 0.02 to 0.15 0.80 0.030 0.035 . . . . . . 0.50 0.30 0.30 0.15 0.008 0.008 0.008 . . .AWhere an ellipsis () appears in the table, there is no requirement, but the analysis shall be reported.BWhen aluminum deoxidized steel is required, it may be ordered to a minimum of 0.01
32、% total aluminum.CWhen copper steel is specified, the copper limit is a minimum of 0.20 %.DSpecify Type B or Type D to avoid carbon levels below 0.02 %.A 1039/A 1039M 0929.1.1 The material shall be furnished as-cast or as-rolled,(that is, without removing the surface oxide or scale), unlessotherwise
33、 specified.9.1.2 When required, the material shall be specified aspickled or blast cleaned (descaled).9.2 Oiling:9.2.1 Unless other specified, as-cast or as-rolled materialshall be furnished not oiled (that is, dry), and pickled or blastcleaned material shall be furnished oiled.9.3 Edges:9.3.1 Steel
34、 sheet is available with mill edge or cut edge.TABLE 2 Chemical RequirementsA,Bfor Twin Roll Cast Hot Rolled Steel Sheet Designations SS and HSLASDesignation% Heat Analysis, Element Maximum Unless Otherwise ShownCMn P SAlSi V Cb Ti NSS:Grade 40 275 0.25 1.35 0.035 0.04 . . . . . . 0.008 0.008 0.008
35、. . .Grade 50 345 0.25 1.35 0.035 0.04 . . . . . . 0.008 0.008 0.008 . . .Grade 55 380 0.25 1.35 0.035 0.04 . . . . . . 0.008 0.008 0.008 . . .Grade 60 410 0.25 1.35 0.035 0.04 . . . . . . 0.008 0.008 0.008 . . .Grade 70 480 0.25 1.35 0.035 0.04 . . . . . . 0.008 0.008 0.008 . . .Grade 80 550 0.25 1
36、.35 0.035 0.04 . . . . . . 0.008 0.008 0.008 . . .HSLAS:CGrade 45 310 Class 1D0.22 1.35 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 45 310 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 50 340 Class 1D0.23 1.35 0.04 0.04 . . . . . . 0.005 min 0.00
37、5 min 0.005 min . . .Grade 50 340 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 55 380 Class 1D0.25 1.35 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 55 380 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 60 410 Cl
38、ass 1 0.26 1.50 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 60 410 Class 2 0.15 1.50 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 min . . .Grade 65 450 Class 1 0.26 1.50 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 minEGrade 65 450 Class 2 0.15 1.50 0.04 0.04 . . . . . . 0.0
39、05 min 0.005 min 0.005 minEGrade 70 480 Class 1 0.26 1.65 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 minEGrade 70 480 Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 minEGrade 80 550 class 1 0.26 1.65 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 minEGrade 80 550 class 2 0.1
40、5 1.65 0.04 0.04 . . . . . . 0.005 min 0.005 min 0.005 minEAWhere an ellipsis (. . .) appears in the table, there is no requirement but the analysis shall be reported.BThe limits for copper, nickel, chromium and molybdenum are shown in Table 3.CHSLAS steels contain the strengthening elements columbi
41、um (niobium), vanadium, titanium, and molybdenum added singly or in combination. The minimumrequirements only apply to the microalloy elements selected for strengthening of the steel.DFor each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % manganese above the specified
42、 maximum will be permitted up to amaximum of 1.50 %.EThe purchaser has the option of restricting the nitrogen content. It should be noted that, depending on the microalloying scheme (for example, use ofvanadium) of the producer, nitrogen is permitted as a deliberate addition. Consideration should be
43、 made for the use of nitrogen binding elements (for examTABLE 3 Chemical Requirements: Cu, Ni, Cr, and Mo forStructural Steels and High-Strength Low-Alloy Steels% Heat Analysis, maximum Unless Otherwise SpecifiedDesignation Limits CuA,BNiBCrB,CMoB,CSS:All grades L 0.35 0.20 0.15 0.06H 0.50 0.30 0.30
44、 0.16HSLAS:All grades and classes L 0.35 0.20 0.15 0.06H 0.50 0.30 0.30 0.16AWhen copper is specified, a minimum of 0.20 % is required. When coppersteel is not specified, the copper limit is a maximum requirement.BFor limit H steels, the sum of copper, nickel, chromium, and molybdenum shallnot excee
45、d 1.00 % on heat analysis. When one or more of these elements arespecified by the purchaser, the sum does not apply; in which case only theindividual limits on the remaining elements shall apply.CFor limit H steels, the sum of chromium and molybdenum shall not exceed0.32 % on heat analysis. When one
46、 or more of these elements are specified, thesum does not apply; in which case, only the individual limits on the remainingelements shall apply.TABLE 4 Typical Ranges of Mechanical PropertiesA(Nonmandatory)Bfor Twin Roll Cast Hot Rolled Steel SheetDesignations CSDesignationYield StrengthElongation i
47、n2 in. 50 mm %Cksi MPaCS Types A and B 40 to 50 250 to 340 22CS Type D 40 to 60 250 to 410 20AThe yield strength tends to increase and the elongation tends to decrease asthe sheet thickness decreases. These properties represent those typical ofmaterial in the thickness range of 0.050 in. 1.27 mm to
48、0.065 in. 1.65 mm.BThe typical mechanical property values presented here are non mandatory.CYield strength and elongation are measured in the longitudinal direction inaccordance with Test Methods and Definitions A 370.A 1039/A 1039M 09310. Retests and Qualification10.1 The procedures for conducting
49、testing in instanceswhere the initial test results indicate non-conformance withspecification requirements are described in A 568/A 568M.11. Certification11.1 Areport of heat analysis shall be supplied, if requested,for CS steels. For product with required mechanical properties,SS and HSLAS, a report is required of heat analysis andmechanical properties as determined by the tension test.11.2 The report shall include the purchase order number, theASTM designation number and year da
