1、Designation: A1018/A1018M 10A1018/A1018M 15Standard Specification forSteel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled,Carbon, Commercial, Drawing, Structural, High-StrengthLow-Alloy, High-Strength Low-Alloy with ImprovedFormability, and Ultra-High Strength1This standard is issued under the
2、fixed designation A1018/A1018M; the number immediately following the designation indicates 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 t
3、he last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*Scope1.1 This specification covers hot-rolled, heavy-thickness coils beyond the size limits of Specification A1011/A1011M.1.2 The product is available in six designations: Co
4、mmercial Steel, Drawing Steel, Structural Steel, High-Strength Low-AlloySteel, High-Strength Low-Alloy Steel with Improved Formability, and Ultra-High Strength Steel.1.3 This material is available only in coils described as follows:Product Size Limits, Coils OnlyWidth, in. mm Thickness, in. mmStrip
5、Over 8 to 12, inclOver 200 to 3000.230 to 1.000, inclFrom 6.0 through 25Sheet Over 12Over 3000.230 to 1.000, inclFrom 6.0 through 25NOTE 1The changes in width limits with the publication of A635/A635M 06a result in a change in tensile testing direction for material from 0.180in. 4.5 mm to 0.230 in.
6、exclusive 6.0 mm exclusive over 48 in. 1200 mm wide as that material is now covered by Specification A568/A568M 06a.The purchaser is advised to discuss this change with the supplier.1.4 Sheet and strip in coils of sizes noted in 1.3 are covered by this specification only with the following provision
7、s:1.4.1 The material is to be fed directly from coils into a blanking press, drawing or forming operation, tube mill, rolling mill,or sheared or slit into blanks for subsequent drawing or forming.1.4.2 The material is not to be converted into steel plates for structural or pressure vessel use unless
8、 tested in completeaccordance with the appropriate sections of Specifications A6/A6M (plates provided from coils) or A20/A20M (plates producedfrom coils). Plate converted from coils is no longer governed by this sheet steel specification and since this material is now a plate,the requirements of the
9、 appropriate plate specification shall apply, except in cases where there is a conflict between therequirements of the plate specification and this specification. In these cases, the more restrictive limits of either specification shallapply.1.4.3 The dimensional tolerances of Specification A635/A63
10、5M are applicable to material produced to this specification.1.4.4 Not all strength levels are available in all thicknesses. The user should consult the producer for appropriate sizelimitations.1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Th
11、e values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless St
12、eel and RelatedAlloysand is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved June 1, 2010Sept. 1, 2015. Published July 2010September 2015. Originally approved in 2001. Last previous edition approved in 20092010 asA1018/A1018M 09.A1018/A1018M 10. DOI:
13、10.1520/A1018_A1018M-10.10.1520/A1018_A1018M-15.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 technically possible to adequately depict all changes accurate
14、ly, 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 this standardCopyright ASTM International, 100 Barr Harbor Dri
15、ve, PO Box C700, West Conshohocken, PA 19428-2959. United States12. Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet PilingA20/A20M Specification for General Requirements for Steel Plates for Pressure Ve
16、sselsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA572/A572M Specification for High-Strength Low-Alloy Columbium-Vanadium Struc
17、tural SteelA635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural,High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements forA751 Test Methods, Practices, and Terminology for Chemical Analysis of
18、Steel ProductsA941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and FerroalloysA1011/A1011M Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High StrengthE29 Practice for
19、 Using Significant Digits in Test Data to Determine Conformance with SpecificationsG101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels3. Terminology3.1 DefinitionsFor definitions of other terms used in this specification refer to Terminology A941.3.2 Definitions of Ter
20、ms Specific to This Standard:3.2.1 inclusion control, nthe process of reducing the volume fraction of inclusions or modifying the shape of inclusions toimprove formability, weldability, and machinability.3.2.1.1 DiscussionInclusions, especially those elongated during the rolling process, create the
21、conditions for initiating and/or propagating cracks orpropagating cracks, or both, when the material is stretched or bent during the manufacture of a part. The adverse effects ofinclusions are minimized by reducing the content of inclusions in the steel and/orsteel, or by altering the shape of inclu
22、sionsthrough the use of additions during the steelmaking process that change the elongated shape of the inclusions to less harmful small,well dispersed globular inclusions.inclusions, or both.4. General Requirements for Delivery4.1 Material furnished under this specification shall conform to the app
23、licable requirements of the current edition ofSpecification A635/A635M, unless otherwise provided herein.5. Classification5.1 Heavy thickness coils are available in the following designations:5.1.1 Commercial Steel (CS Types A and B, and Standard Steel Designations)5.1.2 Drawing Steel (DS Types A an
24、d B, and Standard Steel Designations)5.1.3 Structural Steel(SS Grades 30205, 33230, 36250 Types 1 and 2, 40275 and 40275).45310).5.1.4 High-Strength Low-Alloy Steel(HSLAS Grades 45310, 50340, 55380, 60410, 65450, 70480) in Classes 1 and2.5.1.4.1 This material is intended for miscellaneous applicatio
25、ns where greater strength and savings in weight are important. Thematerial is available in two classes. They are similar in strength level, except that Class 2 offers improved weldability and moreformability than Class 1. Atmospheric corrosion resistance of these steels is equivalent to plain carbon
26、 steels. With copperspecified, the atmospheric corrosion is somewhat enhanced.5.1.5 High-Strength Low-Alloy Steel with Improved Formability(HSLAS-F Grades 50340, 60410, 70480, 80550).5.1.5.1 This material has improved formability when compared with HSLAS. The steel is killed and made to a fine ferri
27、tic grainpractice and includes microalloying elements such as columbium, titanium, vanadium, zirconium, etc. and so forth. The steel shallbe treated to achieve inclusion control. The material is intended for miscellaneous applications where higher strength, savings inweight, improved formability, an
28、d weldability are important.Atmospheric corrosion resistance of these steels is equivalent to plaincarbon steels. With copper specified, the atmospheric corrosion resistance is somewhat enhanced.NOTE 2For methods of establishing the atmospheric corrosion resistance of low-alloy steels, see Guide G10
29、1.5.1.6 Ultra-High Strength Steel(UHSS Grades 90 620 and 100 690, Types 1 and 2).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
30、on the ASTM website.A1018/A1018M 1525.1.6.1 This material has increased strength compared with HSLAS-F. The steel is killed and made to a fine ferritic grainpractice, and includes microalloying elements such as columbium (niobium), titanium, vanadium, molybdenum, and so forth. Thesteel shall be trea
31、ted to achieve inclusion control. The material is intended for miscellaneous applications where higher strength,savings in weight, and weldability are important. Atmospheric corrosion resistance of these steels is equivalent to plain carbonsteels. With copper specified, the atmospheric corrosion res
32、istance is somewhat enhanced.5.1.7 When required for HSLAS, HSLAS-F, and UHSS steels, limitations on the use of one or more of the microalloy elementsshall be specified on the order.5.2 The limits for copper, chromium, nickel, and molybdenum are available in two levels, Limits A and Limits B (see Ta
33、ble 1).6. Ordering Information6.1 Orders for material under this specification shall include the following information, as required, to describe adequately thedesired material.6.1.1 ASTM specification number and year of issue.6.1.2 Name of material and designation (hot-rolled steel sheet or hot-roll
34、ed strip) (include grade and, as appropriate, type andclass for CS, DS, SS, HSLAS, HSLAS-F, and UHSS) (see 5.1).6.1.2.1 For CS and DS, when a type is not specified, Type B will be furnished.6.1.2.2 For SS Grade 36, when a type is not specified, Type 1 will be furnished (see 5.1).6.1.2.3 For UHSS, wh
35、en a type is not specified, Type 1 shall be furnished.6.1.2.4 For HSLAS, when a class is not specified, Class 1 will be furnished (see 5.1),6.1.3 Copper bearing, (if required),6.1.4 For SS, HSLAS, and HSLAS-F and selected CS steels, specify the limits for chemical requirements listed in Table 1(elem
36、ents Cu, Cr, Ni, and Mo). When Limits A or Limits B is not specified, Limits A shall be furnished.6.1.5 ConditionMaterial in accordance with this specification is furnished in the hot rolled condition. Pickled (or blastcleaned) must be specified if required. Material ordered as pickled (or blast cle
37、aned) will be oiled unless ordered dry,6.1.6 Type of edge must be specified for hot rolled sheet coils and strip coils, either mill edge or cut edge (sheet), mill edge orslit edge (strip),6.1.7 Dimensions (decimal thickness and width of material),NOTE 3Not all producers are capable of meeting all th
38、e limitations of the thickness tolerance tables in Specification A635/A635M. The purchasershould contact the producer regarding possible limitations prior to placing an order.TABLE 1 Chemical Requirements: Cu, Ni, Cr and Mo for Commercial Steels, Structural Steels, High-Strength Low-Alloy Steels, an
39、dHigh-Strength Low-Alloy Steels with Improved Formability% Heat Analysis, Element Maximum Unless Otherwise ShownDesignation Limits CuA,B NiB CrB,C MoB,CCS: A 0.20 0.20 0.15 0.06Grades 1015, 1016,1017, 1018, 1019,1020, 1021, 1022,1023, 1524B 0.40 0.40 0.30 0.12SS:All grades A 0.20 0.20 0.15 0.06B 0.4
40、0 0.40 0.30 0.12HSLAS:All grades and classes A 0.20 0.20 0.15 0.06except for Grade 70480B 0.40 0.40 0.30 0.12Grade 70 480 Class 1and Class 2A 0.20 0.20 0.15 0.16B 0.40 0.40 0.30 0.16HSLAS-F:Grades 50 340 and60 410A 0.20 0.20 0.15 0.06B 0.40 0.40 0.30 0.12Grade 70 480 and 80550A 0.20 0.20 0.15 0.16B
41、0.40 0.40 0.30 0.16A When copper bearing steel is specified, the minimum limit for copper is 0.20 %. When copper bearing steel is not specified, the maximum limit for copper is as shownin the table.B For Limits B steels, the sum of copper, nickel, chromium and molybdenum shall not exceed 1.00 % on h
42、eat analysis. When one or more of these elements are specifiedby the purchaser, the sum does not apply; in which case, only the individual limits on the remaining elements shall apply.C For Limits B steels, the sum of chromium and molybdenum shall not exceed 0.32 % on heat analysis. When one or more
43、 of these elements are specified, the sum doesnot apply; in which case, only the individual limits on the remaining elements shall apply.A1018/A1018M 1536.1.8 Coils size and weight requirements (must include inside diameter (ID), outside diameter (OD), and maximum weight),6.1.9 Quantity (weight),6.1
44、.10 Application (part identification and description). Orders for conversion to plate shall include reference to the applicableASTM plate specification.6.1.11 A report is required of heat analysis and mechanical properties as determined by the tension test, and6.1.12 Special requirements (if any).6.
45、1.12.1 When the purchaser requires a limit on “carbon equivalent” (see Supplementary Requirement S1), this requirementshall be specified in the purchase order or contract.6.1.12.2 When the purchaser requires thickness tolerances for 38 in. 10 mm minimum edge distance (see SupplementaryRequirement in
46、 Specification A635/A635M), this requirement shall be specified in the purchase order or contract.NOTE 4A typical ordering description is as follows: (inch pound units) ASTM A1018/A1018M: Grade 50, High-Strength, Low-Alloy Steel, Class2, Limits B, hot rolled sheet coils, pickled and oiled, cut edge,
47、 0.500 by 40 in. by coil; ID 24 in., OD 72 in., maximum; coil weight 40 000 lb., maximum;200 000 lb. for roll forming shapes; (SI units) ASTM A1018/A1018M: Grade 340, High-Strength Low-Alloy Steel, Class 2, Limits B, hot-rolled sheetcoils, pickled and oiled, cut edge; 10 mm by 900 mm by coil; ID 600
48、 mm, OD 1800 mm, maximum; coil weight 18 000 kg maximum; 90 000 kg forroll forming shapes. For conversion to plate: (inch-pound units) ASTM A1018/A1018M: Grade 50, High-Strength Low-Alloy Steel, Class 1, Limits A,hot-rolled sheet coils, as rolled, mill edge, 0.500 in. by 50 in. by coil, ID 24 in., O
49、D 72 in., maximum; coil weight 40 000 lb., maximum; 200 000 lb.for conversion to plate, Specification A572/A572M Grade 50; (SI units) ASTM A1018/A1018M: Grade 340, Structural Steel, hot-rolled sheet coils, asrolled, mill edge; 10 mm by 1000 mm by coil; ID 600 mm, OD 1800 mm, maximum; coil weight 18 000 kg maximum; 100 000 kg for conversion toplate, Specification A572/A572M Grade 340.TABLE 2 Chemical RequirementsACommercial and Drawing Steels% Heat Analysis, Element Maximum Unless Otherwise Sho
