1、Designation: A1018/A1018M 15A1018/A1018M 16Standard 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 Scope*1.1 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: C
4、ommercial 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. 48 in. 1200 mm wide as that material is now covered by SpecificationA568/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 p
7、rovisions: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 us
8、e unless 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 requirement
9、s of the 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
10、A635/A635M 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 stan
11、dard. The 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, Stai
12、nless Steel and RelatedAlloysand is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved Sept. 1, 2015May 1, 2016. Published September 2015May 2016. Originally approved in 2001. Last previous edition approved in 20102015 asA1018/A1018M 10.A1018/A1018M 15.
13、 DOI: 10.1520/A1018_A1018M-15.10.1520/A1018_A1018M-16.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 ac
14、curately, 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 Harb
15、or Drive, 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 Press
16、ure VesselsA370 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
17、 Structural 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 Analys
18、is of 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 Practi
19、ce for 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
20、of Terms 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, creat
21、e the conditions for initiating or propagating cracks, or both,when the material is stretched or bent during the manufacture of a part.The adverse effects of inclusions are minimized by reducingthe content of inclusions in the steel, or by altering the shape of inclusions through the use of addition
22、s during the steelmakingprocess that change the elongated shape of the inclusions to less harmful small, well dispersed globular inclusions, or both.4. General Requirements for Delivery4.1 Material furnished under this specification shall conform to the applicable requirements of the current edition
23、 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) B):5.1.1.1 Commercial Steel, CS Types A and B combined with chemistry grade
24、in accordance with Specification A635/A635MTable X1.3. (CS Type A-1006, CS Type A-1008, and so forth).5.1.1.2 Commercial Steel Designations, in accordance with Specification A635/A635M Table X1.1, with no type specified,(CS-1005, CS-1006, CS-1020, and so forth).5.1.2 Drawing Steel (DS Types A and B,
25、 and Standard Steel Designations) B):5.1.2.1 Drawing Steel, DS TypesAand B combined with chemistry grade per Specification A635/A635M Table X1.3. (DS TypeA-1005, DS Type B-1006, and so forth.)5.1.3 Structural Steel(SS Grades 30205, 33230, 36250 Types 1 and 2, 40275 and 45310).5.1.4 High-Strength Low
26、-Alloy Steel(HSLAS Grades 45310, 50340, 55380, 60410, 65450, 70480) in Classes 1 and2.5.1.4.1 This material is intended for miscellaneous applications where greater strength and savings in weight are important. Thematerial is available in two classes. They are similar in strength level, except that
27、Class 2 offers improved weldability and moreformability than Class 1. Atmospheric corrosion resistance of these steels is equivalent to plain carbon steels. With copperspecified, the atmospheric corrosion is somewhat enhanced.5.1.5 High-Strength Low-Alloy Steel with Improved Formability(HSLAS-F Grad
28、es 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 ferritic grainpractice and includes microalloying elements such as columbium, titanium, vanadium, zirconium, and so forth. The steel shall be2 For referenced
29、ASTM 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.A1018/A1018M 162treated to achieve inclusion control. The material is intende
30、d for miscellaneous applications where higher strength, savings inweight, improved formability, and 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 2F
31、or methods of establishing the atmospheric corrosion resistance of low-alloy steels, see Guide G101.5.1.6 Ultra-High Strength Steel(UHSS Grades 90 620 and 100 690, Types 1 and 2).5.1.6.1 This material has increased strength compared with HSLAS-F. The steel is killed and made to a fine ferritic grain
32、practice, and includes microalloying elements such as columbium (niobium), titanium, vanadium, molybdenum, and so forth. Thesteel shall be treated to achieve inclusion control. The material is intended for miscellaneous applications where higher strength,savings in weight, and weldability are import
33、ant. Atmospheric corrosion resistance of these steels is equivalent to plain carbonsteels. With copper specified, the atmospheric corrosion resistance 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 b
34、e 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 Table 1).6. Ordering Information6.1 Orders for material under this specification shall include the following information, as required, to describe adequately t
35、hedesired 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-rolled 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 spe
36、cified, Type B will be furnished.(1) When a chemistry grade is specified in accordance with Specification A635/A635M TableX1.3, the grade shall be furnishedas CS Type B-1008, DS Type A-1005, and so forth.(2) When only a Steel Designation is specified in accordance with Specification A635/A635M Table
37、 X1.1, with no referenceto CS Type A, CS Type B, DS Type A or DS Type B, the grade shall be furnished as CS-1005, CS-1008, CS-1020, and so forth.TABLE 1 Chemical Requirements: Cu, Ni, Cr and Mo for Commercial Steels, Structural Steels, High-Strength Low-Alloy Steels, andHigh-Strength Low-Alloy Steel
38、s with Improved Formability% Heat Analysis, Element Maximum Unless Otherwise ShownDesignation Limits CuA,B NiB CrB,C MoB,CCS:CS: A 0.20 0.20 0.15 0.06Grades 10021095, 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 0.1215151566 B 0.40 0.40 0.30 0.1
39、2SS:All grades A 0.20 0.20 0.15 0.06B 0.40 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 0.12Grad
40、e 70 480 and 80550A 0.20 0.20 0.15 0.16B 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 an
41、d molybdenum shall not exceed 1.00 % on heat 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
42、0.32 % on heat analysis. When one or more of these elements are specified, the sum doesnot apply; in which case, only the individual limits on the remaining elements shall apply.A1018/A1018M 1636.1.2.2 For SS Grade 36, when a type is not specified, Type 1 will be furnished (see 5.1).6.1.2.3 For UHSS
43、, when 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(
44、elements 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
45、 cleaned) 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 al
46、l the limitations of the thickness tolerance tables in Specification A635/A635M. The purchasershould contact the producer regarding possible limitations prior to placing an order.6.1.8 Coils size and weight requirements (must include inside diameter (ID), outside diameter (OD), and maximum weight),6
47、.1.9 Quantity (weight),6.1.10 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 Specia
48、l requirements (if any).6.1.12.1 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 S
49、upplementaryRequirement in 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, 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-
