1、Designation: A 109/A 109M 03Standard Specification forSteel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled1This standard is issued under the fixed designation A 109/A 109M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the ye
2、ar 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. Scope*1.1 This specification covers col
3、d-rolled carbon steel strip incut lengths or coils, furnished to closer tolerances than cold-rolled carbon steel sheet, with specific temper, with specificedge or specific finish, and in sizes as follows:Width, in. Thickness, in.Over12 to 231516 0.300 and underOver 12.5 to 600 mm 7.6 mm and under1.2
4、 Cold-rolled strip is produced with a maximum specifiedcarbon not exceeding 0.25 percent.1.3 Strip tolerance products may be available in widthswider than 231516 in. 600 mm by agreement between pur-chaser and supplier. However, such products are technicallyclassified as cold rolled sheet. This speci
5、fication does notinclude cold-rolled carbon spring steel, Specification A 682/A 682M. The tolerances, finishes, tempers, edges, and avail-able widths and thicknesses differentiate cold rolled strip fromthe product known as cold rolled sheet which is defined bySpecification A 568/A 568M and Specifica
6、tion A 682/A 682M.1.4 For the purpose of determining conformance with thisspecification, values shall be rounded to the nearest unit in theright hand place of figures used in expressing the limitingvalues in accordance with the rounding method of PracticeE 29.1.5 The SI portions of the tables contai
7、ned herein listpermissible variations in dimensions and mass (see Note 1) inSI (metric) units. The values listed are not exact conversions ofthe values listed in the inch-pound tables, but instead arerounded or rationalized values. Conformance to SI tolerancesis mandatory when the “M” specification
8、is used.NOTE 1The term weight is used when inch-pound units are thestandard. However, under SI the preferred term is mass.1.6 The values stated in either inch-pound units or SI unitsare to be regarded as standard. Within the text, the SI units areshown in brackets. The values stated in each system a
9、re notexact equivalents; therefore, each system must be used inde-pendently of the other. Combining values from the two systemswill result in nonconformance with the specification.1.7 This specification is expressed in both inch-pound unitsand SI units. However, unless the order specifies the applic
10、able“M” specification designation (SI units), the material shall befurnished to inch-pound units.2. Referenced Documents2.1 ASTM Standards:A 370 Test Methods and Definitions for Mechanical Testingof Steel Products2A 568/A 568M Specification for Steel, Sheet, Carbon, andHigh-Strength, Low-Alloy, Hot-
11、Rolled and Cold-Rolled,General Requirements for2A 682/A 682M Specification for Steel, Strip, High-Carbon,Cold-Rolled, General Requirements for2A 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for Domestic Shipment3A 751 Test Methods, Practices, and Terminology forChemica
12、l Analysis of Steel Products2E 8 Test Methods for Tension Testing of Metallic Materials4E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications5E 430 Test Methods for Measurement of Gloss of High-Gloss Surfaces by Goniophotometry62.2 Military Standards:MIL
13、-STD-129 Marking for Shipment and Storage7MIL-STD-163 Steel Mill Products, Preparation for Ship-ment and Storage72.3 Federal Standard:123 Marking for Shipments (Civil Agencies)7183 Continuous Identification Marking of Iron and SteelProducts73. Terminology3.1 Definitions of Terms Specific to This Sta
14、ndard: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 Sept. 10, 2003. Published Sept. 2003. Originallyapproved in 1926. Last previ
15、ous edition approved in 2000 as A 109/A 109M 00e1.2Annual Book of ASTM Standards, Vol 01.03.3Annual Book of ASTM Standards, Vol 01.05.4Annual Book of ASTM Standards, Vol 03.01.5Annual Book of ASTM Standards, Vol 14.02.6Annual Book of ASTM Standards, Vol 06.01.7Available from Standardization Document
16、s Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.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.3.1.1 annealingthe process o
17、f heating to and holding at asuitable temperature and then cooling at a suitable rate, forsuch purposes as reducing hardness, facilitating cold working,producing a desired microstructure, or obtaining desired me-chanical, physical, or other properties.3.1.1.1 box annealinginvolves annealing in a sea
18、led con-tainer under conditions that minimize oxidation. The strip isusually heated slowly to a temperature below the transforma-tion range, but sometimes above or within it, and is then cooledslowly.3.1.1.2 continuous annealinginvolves heating the strip incontinuous strands through a furnace having
19、 a controlledatmosphere followed by a controlled cooling.3.1.2 carbon steelthe designation for steel when no mini-mum content is specified or required for aluminum, chromium,cobalt, columbium, molybdenum, nickel, titanium, tungsten,vanadium, zirconium or any other element added to obtain adesired al
20、loying effect; when the specified minimum for copperdoes not exceed 0.40 % or when the maximum contentspecified for any of the following elements does not exceed thepercentage noted: manganese 1.65, silicon 0.60, or copper0.60.3.1.2.1 DiscussionIn all carbon steels small quantities ofcertain residua
21、l elements unavoidably retained from raw ma-terials are sometimes found which are not specified or required,such as copper, nickel, molybdenum, chromium, etc. Theseelements are considered as incidental and are not normallyreported.3.1.3 cold reductionthe process of reducing the thicknessof the strip
22、 at room temperature. The amount of reduction isgreater than that used in skin-rolling (see 3.1.7).3.1.4 dead softthe temper of strip produced withoutdefinite control of stretcher straining or fluting. It is intendedfor deep drawing applications where such surface disturbancesare not objectionable.3
23、.1.5 finishthe degree of smoothness or luster of the strip.The production of specific finishes requires special preparationand control of the roll surfaces employed.3.1.6 normalizingheating to a suitable temperature abovethe transformation range and then cooling in air to a tempera-ture substantiall
24、y below the transformation range. In brightnormalizing the furnace atmosphere is controlled to preventoxidizing of the strip surface.3.1.7 skin-rolleda term denoting a relatively light coldrolling operation following annealing. It serves to reduce thetendency of the steel to flute or stretcher strai
25、n during fabrica-tion. It is also used to impart surface finish, or affect hardnessor other mechanical properties, or to improve flatness.3.1.8 temper a designation by number to indicate thehardness as a minimum, as a maximum, or as a range. Thetempers are obtained by the selection and control of ch
26、emicalcomposition, by amounts of cold reduction, by thermal treat-ment, and by skin-rolling.4. Ordering Information4.1 Orders for material to this specification shall include thefollowing information, as necessary, to describe adequately thedesired product:4.1.1 Quantity,4.1.2 Name of material (cold
27、-rolled carbon steel strip),4.1.3 Condition (oiled or not oiled),4.1.4 Temper (Section 7),4.1.5 Edge (Section 8),4.1.6 Dimensions (Section 9),4.1.7 Workmanship, Finish, and Appearance (Section 10),4.1.8 Coil size requirements (15.3),4.1.9 ASTM designation and year of issue,4.1.10 Copper-bearing stee
28、l, if required,4.1.11 Application (part identification or description),4.1.12 Cast or heat analysis (request, if required), and4.1.13 Special requirements, if required.NOTE 2A typical ordering description is as follows: 20 000 lbCold-Rolled Strip, Oiled, Temper 4, Edge 3, Finish 3, 0.035 by 9 in. by
29、coil, 5000 lb max, 16-in. ID ASTM A 109-XX, for Toaster Shells.5. Materials and Manufacture5.1 The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process.5.2 Cold-rolled carbon steel strip is normally manufacturedfrom continuously cast steel with aluminum used as thedeoxid
30、izer. However, some applications are specified as siliconkilled. Ingot cast rimmed, capped and semi-killed steels aresubject to limited availability.5.3 Cold-rolled carbon steel strip is manufactured fromhot-rolled descaled coils by cold reducing to the desiredthickness on a single stand mill or on
31、a tandem mill consistingof several single stands in series. Sometimes an anneal is usedat some intermediate thickness to facilitate further cold reduc-tion or to obtain desired temper and mechanical properties inthe finished strip. An anneal and skin pass is typically used asthe final step for Tempe
32、r 4 and 5.6. Chemical Composition6.1 Heat Analysis An analysis for each heat of steel shallbe made by the manufacturer to determine the percentage ofelements shown in Table 1. This analysis shall conform to therequirements shown in Table 1. When requested, heat analysisshall be reported to purchaser
33、 or his representative.6.2 Product, Check, or Verification Analysis may be madeby the purchaser on the finished material.6.2.1 Capped or rimmed steels are not technologicallysuited to product analysis due to the nonuniform character oftheir chemical composition and therefore, the tolerances inTable
34、2 do not apply. Product analysis is appropriate on thesetypes of steel only when misapplication is apparent or forcopper when copper steel is specified.6.2.2 For steels other than rimmed or capped, when productanalysis is made by the purchaser, the chemical analysis shallnot vary from the limits spe
35、cified by more than the amounts inTable 2. The several determinations of any element shall notvary both above and below the specified range.6.3 For referee purposes, if required, Test Methods, Prac-tices, and Terminology A 751 shall be used.6.4 For applications where cold-rolled strip is to be welde
36、d,care must be exercised in selection of chemical composition, aswell as mechanical properties, for compatibility with thewelding process and its effect on altering the properties.A 109/A 109M 0327. Temper and Bend Test Requirement7.1 Cold-rolled carbon strip specified to temper numbersshall conform
37、 to the Rockwell hardness requirements shown inTable 3.7.1.1 When a temper number is not specified, rockwellhardness requirements are established by agreement.7.2 It is recommended that hardness values be specified inthe same scale as that which will be used in testing the strip.7.3 Bend tests shall
38、 be conducted at room temperature andtest specimens shall be capable of being bent to the require-ments shown in Table 4.7.4 All mechanical tests are to be conducted in accordancewith Test Methods and Definitions A 370.8. Edge8.1 The desired edge number shall be specified as follows:8.1.1 Number 1 E
39、dge is a prepared edge of a specifiedcontour (round or square), which is produced when a veryaccurate width is required or when an edge condition suitablefor electroplating is required, or both.8.1.2 Number 2 Edge is a natural mill edge carried throughthe cold rolling from the hot-rolled strip witho
40、ut additionalprocessing of the edge.8.1.3 Number 3 Edge is an approximately square edge,produced by slitting, on which the burr is not eliminated.Normal coiling or piling does not necessarily provide a definitepositioning of the slitting burr.8.1.4 Number 4 Edge is a rounded edge produced by edgerol
41、ling either the natural edge of hot-rolled strip or slit-edgestrip. This edge is produced when the width tolerance and edgecondition are not as exacting as for No. 1 edge.TABLE 1 Heat AnalysisAComposition Wt %ElementTemper No.1, 2, 3Temper No.4, 5Carbon, max 0.25 0.15Manganese, max 0.90 0.60Phosphor
42、ous, max 0.025 0.025Sulfur, max 0.025 0.025SiliconA. .AluminumA,B. .Copper, when copper steel isspecified, min0.20 0.20Copper, maxC0.20 0.20Nickel, maxC0.20 0.20Chromium, maxC,D0.15 0.15Molybdenum, maxC0.06 0.06VanadiumE. .ColumbiumE. .TitaniumE. .AWhere an ellipsis (. . .) appears in this table, th
43、ere is no requirement, but theanalysis shall be reported unless otherwise specified in this specification.BThe analysis shall be reported. When killed steel is specified and aluminum isthe deoxidizing element, the minimum is 0.02, and the analysis shall be reported.CThe sum of copper, nickel, chromi
44、um, and molybdenum shall not exceed0.50 % on heat analysis. When one or more of these elements is specified, thesum does not apply; in which case, only the individual limits on the remainingelements will apply.DChromium is permitted, at the producers option, to 0.25 % maximum when thecarbon is less
45、than or equal to 0.05 %. In such case, the limit on the sum of the fourelements in Footnote C does not apply.EReporting shall be required when the level for any of these elements exceeds0.008 wt%.TABLE 2 Tolerances for Product AnalysisElementLimit or Maximumof Specified Ele-ment %ToleranceUnderMinim
46、umLimitOverMaxi-mumLimitCarbon to 0.15, inclover 0.15 to 0.25, incl0.020.030.030.04Manganese to 0.60, incl 0.03 0.03Phosphorus . 0.01Sulfur . 0.01Copper 0.02 .TABLE 3 Hardness RequirementsINCH-POUND UNITSTemperThickness, in. Rockwell HardnessUnder Through MinimumMaximum(approx.)No. 1 (hard) 0.025 .
47、. . 15T90 . . .0.040 0.025 30T76 . . .0.070 0.040 B90.0 . . .0.300 0.070 B84.0 . No. 2A(half-hard) 0.025 . . . 15T83.5 15T88.50.040 0.025 30T63.5 30T73.50.300 0.040 B70.0 B85No. 3A(quarter-hard) 0.025 . . . 15T80 15T850.040 0.025 30T56.5 30T670.300 0.040 B60 B75No. 4A,B(skin-rolled) 0.025 . . . . .
48、. 15T820.040 0.025 . . . 30T600.300 0.040 . . . B65No. 5A,B(dead-soft) 0.025 . . . 15T78.50.040 0.025 . . . 30T530.300 0.040 . . . B55SI UNITSThickness, mm Rockwell HardnessTemperUnder Through MinimumMaximun(approx.)No. 1 (hard) 0.6 . . . 15T90 . . .1.0 0.6 30T76 . . .1.8 1.0 B90.0 . . .7.6 1.8 B84.
49、0 . . .No. 2A(half-hard) 0.6 . . . 15T83.5 15T88.51.0 0.6 30T63.5 30T73.57.6 1.0 B70.0 B85No. 3A(quarter-hard) 0.6 . . . 15T80 15T851.0 0.6 30T56 30T677.6 1.0 B60 B75No. 4A,B(skin-rolled) 0.6 . . . . . . 15T821.0 0.6 . . . 30T607.6 1.0 . . . B65No. 5A,B(dead-soft) 0.6 . . . . . . 15T78.51.0 0.6 . . . 30T537.6 1.0 . . . B55ARockwell hardness values apply at time of shipment. Aging may cause slightlyhigher values when tested at a later date.BWhere No. 4 and 5 tempers are ordered with a carbon range of 0.15 to 0.25 %,the maximum hardness requirement is established by
