1、Designation: A 752M 04METRICStandard Specification forGeneral Requirements for Wire Rods and Coarse RoundWire, Alloy Steel Metric1This standard is issued under the fixed designation A 752M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of rev
2、ision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers general requirements for alloysteel rods and uncoated coarse round allo
3、y wire in coils that arenot required to meet hardenability band limits.1.2 In case of conflict, the requirements in the purchaseorder, on the drawing, in the individual specification, and inthis general specification shall prevail in the sequence named.NOTE 1This specification is the metric counterp
4、art of SpecificationA 752.2. Referenced Documents2.1 ASTM Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for Domestic ShipmentA 751 Test Methods, Practices, and Terminology forChemical
5、 Analysis of Steel ProductsA 919 Terminology Relating to Heat Treatment of MetalsE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 112 Test Methods for Determining Average Grain Size2.2 Military Standard:MIL-STD-163 Steel Mill Products, Preparation
6、for Ship-ment and Storage32.3 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)32.4 AIAG Standard:AIAGB-5 02.00 Primary Metals Identification Tag Applica-tion Standard43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 alloy steelsteel is considered to be a
7、lloy steel whenthe maximum of the range given for the content of alloyingelements exceeds one or more of the following limits: manga-nese 1.65 %, silicon 0.60 %, copper 0.60 %; or in which adefinite range or a definite minimum quantity of any of thefollowing elements is specified or required within
8、the limits ofthe recognized field of constructional alloy steels: chromiumup to 3.99 %, cobalt, columbium, molybdenum, nickel, tita-nium, tungsten, vanadium, zirconium, or any other alloyingelements added to obtain a desired alloying effect.3.1.1.1 Boron treatment of alloy steels, which are fine gra
9、in,may be specified to improve hardenability.3.1.1.2 Other elements, such as lead, selenium, tellurium, orbismuth, may be specified to improve machinability.3.1.2 coarse round wirefrom 0.90 to 25 mm in diameter,inclusive, wire produced from hot-rolled wire rods or hot-rolled coiled rounds by one or
10、more cold reductions primarilyfor the purpose of obtaining a desired size with dimensionalaccuracy, surface finish, and mechanical properties. By varyingthe amount of cold reduction and other wire mill practices,including thermal treatment, a wide diversity of mechanicalproperties and finishes are m
11、ade available. Suggested wirediameters are shown in Table 1.3.1.3 straightened and cut wirewire produced from coilsof wire by means of special machinery that straightens the wireand cuts it to a specified length.3.1.3.1 The straightening operation may alter the mechani-cal properties of the wire, es
12、pecially the tensile strength. Thestraightening operation may also induce changes in the diam-eter of the wire. The extent of the changes in the properties ofthe wire after cold straightening depends upon the kind of wire1This specification is under the jurisdiction of ASTM Committee A01 on Steel,St
13、ainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.03 on Steel Rod and Wire.Current edition approved March 1, 2004. Published March 2004. Originallyapproved in 1983. Last previous edition approved in 2003 as A 752M 93 (2003).2For referenced ASTM standards, visit the
14、 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 ASTM website.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia
15、, PA 19111-5094, Attn: NPODS.4Available from the Automotive Industry Action Group, 26200 Lahser, Suite200, Southfield, MI 48034.1*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, Unite
16、d States.and also on the normal variation in the adjustments of thestraightening equipment. It is therefore not possible to forecastthe properties of straightened and cutwire. Each kind of wireneeds individual consideration. In most cases, the applicationof straightened and cut wire is not seriously
17、 influenced by thesechanges.3.1.4 wire rodsrods that are hot rolled from billets into anapproximate round cross section and into coils of one continu-ous length. Rods are not comparable to hot-rolled bars inaccuracy of cross section or surface finish and as a semi-finished product are primarily for
18、the manufacture of wire.3.1.4.1 Table 2 shows the nominal diameter for hot-rolledwire rods. Sizes are shown in 0.5-mm increments from 5.5 to19 mm.4. Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for hot-rolled wire rodsunder thi
19、s specification. Such requirements include, but are notlimited to, the following:4.1.1 Quantity (kilograms),4.1.2 Name of material (wire rods),4.1.3 Diameter (Table 1),4.1.4 Chemical composition grade number (Table 3),4.1.5 Packaging (Section 14),4.1.6 Heat analysis report, if requested (Section 6),
20、4.1.7 Certification or test report, or both, if specified (Sec-tion 13),4.1.8 ASTM designation and date of issue, and4.1.9 Special requirements, if any.NOTE 2A typical ordering description is as follows: 50 000 kg SteelWire Rods, 5.5 mm, Grade G 41400 W approximately 600 kg coils toASTM A 752M dated
21、-XX.4.2 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for coarse round wire underthis specification. Such requirements include, but are notlimited to, the following:4.2.1 Quantity (kilograms),4.2.2 Name of material (alloy steel wire),4.2.3 Diameter (Ta
22、ble 2),4.2.4 Length (straightened and cut only),4.2.5 Chemical composition (Table 3),4.2.6 Packaging (Section 14),4.2.7 Heat analysis report, if requested (Section 6),4.2.8 Certification or test report, or both, if specified (Sec-tion 13),4.2.9 ASTM designation and date of issue, and4.2.10 Special r
23、equirements, if any.NOTE 3A typical ordering description is as follows: 15 000 kg AlloySteel Wire, 3.8 mm diameter, Grade 4135 in 1000-kg Coils on TubularCarriers, toASTMA 752M-XX, or 2500 Pieces,Alloy Steel Wire, 9.5 mmdiameter, Straightened and Cut, 0.76 m, Grade G 41400 in 25-PieceBundles on Pall
24、ets to ASTM A 752M-XX.5. Manufacture5.1 The steel may be produced by any commercially ac-cepted steel making process. The steel may be either ingot castor strand cast.6. Chemical Composition6.1 The chemical composition for alloy steel under thisspecification shall conform to the requirements set for
25、th in thepurchase order. The grades commonly specified for alloy steelwire rods and alloy steel wire are shown in Table 3. Forspecified compositions not contained in Table 3 the ranges andlimits expressed in Table 4 shall apply unless other such rangesand limits shall have been agreed upon between t
26、he purchaserand the manufacturer.6.2 Heat AnalysisAn analysis of each heat shall be madeby the producer to determine the percentage of the elementsspecified. The analysis shall be made from a test samplepreferably taken during the pouring of the heat. The chemicalcomposition thus determined shall be
27、 reported, if required, tothe purchaser or his representative.6.3 Product AnalysisA product analysis may be made bythe purchaser. The analysis is not used for a duplicate analysisto confirm a previous result. The purpose of the productanalysis is to verify that the chemical composition is withinspec
28、ified limits for each element, including applicable permis-sible variations in product analysis. The results of analysesTABLE 1 Suggested Diameters for Alloy Steel Wire, mm0.90 6.01.00 6.51.10 7.01.20 7.51.30 8.01.40 8.51.60 9.01.80 9.52.0 10.02.1 11.02.2 12.02.4 13.02.5 14.02.6 15.02.8 16.03.0 17.0
29、3.2 18.03.5 19.03.8 20.04.0 21.04.2 22.04.5 23.04.8 24.05.0 25.05.5 .TABLE 2 Sizes of Alloy Steel Wire Rods, mm5.5 12.56136.5 13.57147.5 14.58158.5 15.59169.5 16.510 1710.5 17.511 1811.5 18.512 19A752M042TABLE 3 Alloy SteelsChemical Composition Ranges and Limits for Heat AnalysisNOTE 1 Grades shown
30、in this table with prefix letter E are normally only made by the basic electric furnace process. All others are normallymanufactured by the basic open hearth or basic oxygen processes but may be manufactured by a basic electric furnace process. If the electric furnaceprocess is specified or required
31、 for grades other than those designated above, the limits for phosphorus and sulfur are respectively 0.025 % max.NOTE 2 Small quantities of certain elements, which are not specified or required, are present in alloy steels. These elements are considered asincidental and may be present to the followi
32、ng maximum amounts: copper, 0.35 %, nickel, 0.25 %, chromium, 0.20 %, molybdenum, 0.06 %.NOTE 3Where minimum and maximum sulfur content is shown it is indicative of resulfurized steel.NOTE 4The chemical ranges and limits shown in Table 4 are produced to product analysis tolerances shown in Table 5.N
33、OTE 5Standard alloy steels can be produced with a lead range of 0.15 to 0.35 %. Such steels are identified by inserting the letter “L” between thesecond and third numerals of the Grade number, for example, 41L40. Lead is reported only as a range of 0.15 to 0.35 % since it is added to the moldas the
34、steel is poured.UNS Desig-nationGrade No.Chemical Composition, Ranges and Limits, %Carbon ManganesePhos-phorus,maxSulfur, max Silicon Nickel ChromiumMolybde-numSTANDARD ALLOY STEELSG13300 1330 0.28 to 0.33 1.60 to 1.90 0.035 0.040 0.15 to 0.35 . . . . . . . . .G13350 1335 0.33 to 0.38 1.60 to 1.90 0
35、.035 0.040 0.15 to 0.35 . . . . . . . . .G13400 1340 0.38 to 0.43 1.60 to 1.90 0.035 0.040 0.15 to 0.35 . . . . . . . . .G13450 1345 0.43 to 0.48 1.60 to 1.90 0.035 0.040 0.15 to 0.35 . . . . . . . . .G40120 4012 0.09 to 0.14 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . . . . 0.15 to 0.25G40230 4023
36、0.20 to 0.25 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . . . . 0.20 to 0.30G40240G40270402440270.20 to 0.250.25 to 0.300.70 to 0.900.70 to 0.900.0350.0350.035 to 0.0500.0400.15 to 0.350.15 to 0.35.0.20 to 0.300.20 to 0.30G40280G40370402840370.25 to 0.300.35 to 0.400.70 to 0.900.70 to 0.900.0350.0350
37、.035 to 0.0500.0400.15 to 0.350.15 to 0.35.0.20 to 0.300.20 to 0.30G40470 4047 0.45 to 0.50 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . . . . 0.20 to 0.30G41180 4118 0.18 to 0.23 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.40 to 0.60 0.08 to 0.15G41300 4130 0.28 to 0.33 0.40 to 0.60 0.035 0.040 0.
38、15 to 0.35 . . . 0.80 to 1.10 0.15 to 0.25G41370 4137 0.35 to 0.40 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 to 0.25G41400 4140 0.38 to 0.43 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 to 0.25G41420 4142 0.40 to 0.45 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0
39、.80 to 1.10 0.15 to 0.25G41450 4145 0.43 to 0.48 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 to 0.25G41470 4147 0.45 to 0.50 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 to 0.25G41500 4150 0.48 to 0.53 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 t
40、o 0.25G41610 4161 0.56 to 0.64 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.70 to 0.90 0.25 to 0.35G43200 4320 0.17 to 0.22 0.45 to 0.65 0.035 0.040 0.15 to 0.35 1.65 to 2.00 0.40 to 0.60 0.20 to 0.30G43400 4340 0.38 to 0.43 0.60 to 0.80 0.035 0.040 0.15 to 0.35 1.65 to 2.00 0.70 to 0.90 0.20 to 0.
41、30G43406 E4340 0.38 to 0.43 0.65 to 0.85 0.025 0.025 0.15 to 0.35 1.65 to 2.00 0.70 to 0.90 0.20 to 0.30G44190 4419 0.18 to 0.33 0.45 to 0.65 0.035 0.040 0.15 to 0.35 . . . . . . 0.45 to 0.60STANDARD ALLOY STEELSG46150 4615 0.13 to 0.18 0.45 to 0.65 0.035 0.040 0.15 to 0.35 1.65 to 2.00 . . . 0.20 t
42、o 0.30G46200 4620 0.17 to 0.22 0.45 to 0.65 0.035 0.040 0.15 to 0.35 1.65 to 2.00 . . . 0.20 to 0.30G46210 4621 0.18 to 0.23 0.70 to 0.90 0.035 0.040 0.15 to 0.35 1.65 to 2.00 . . . 0.20 to 0.30G46260 4626 0.24 to 0.29 0.45 to 0.65 0.035 0.040 0.15 to 0.35 0.70 to 1.00 . . . 0.15 to 0.25G47180 4718
43、0.16 to 0.21 0.70 to 0.90 0.035 0.040 0.15 to 0.35 0.90 to 1.20 0.35 to 0.55 0.30 to 0.40G47200 4720 0.17 to 0.22 0.50 to 0.70 0.035 0.040 0.15 to 0.35 0.90 to 1.20 0.35 to 0.55 0.15 to 0.25G48150 4815 0.13 to 0.18 0.40 to 0.60 0.035 0.040 0.15 to 0.35 3.25 to 3.75 . . . 0.20 to 0.30G48170 4817 0.15
44、 to 0.20 0.40 to 0.60 0.035 0.040 0.15 to 0.35 3.25 to 3.75 . . . 0.20 to 0.30G48200 4820 0.18 to 0.23 0.50 to 0.70 0.035 0.040 0.15 to 0.35 3.25 to 3.75 . . . 0.20 to 0.30G50150 5015 0.12 to 0.17 0.30 to 0.50 0.035 0.040 0.15 to 0.35 . . . 0.30 to 0.50 . . .G51200 5120 0.17 to 0.22 0.70 to 0.90 0.0
45、35 0.040 0.15 to 0.35 . . . 0.70 to 0.90 . . .G51300 5130 0.28 to 0.33 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 . . .G51320 5132 0.30 to 0.35 0.60 to 0.80 0.035 0.040 0.15 to 0.35 . . . 0.75 to 1.00 . . .G51350 5135 0.33 to 0.38 0.60 to 0.80 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.0
46、5 . . .G51400 5140 0.38 to 0.43 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.70 to 0.90 . . .G51450G51470514551470.43 to 0.480.46 to 0.510.70 to 0.900.70 to 0.950.0350.0350.0400.0400.15 to 0.350.15 to 0.35.0.70 to 0.900.85 to 1.15.G51500 5150 0.48 to 0.53 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . .
47、 0.70 to 0.90 . . .G51550 5155 0.51 to 0.59 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.70 to 0.90 . . .G51600 5160 0.56 to 0.64 0.75 to 1.00 0.035 0.040 0.15 to 0.35 . . . 0.70 to 0.90 . . .E51100E521000.98 to 1.100.98 to 1.100.25 to 0.450.25 to 0.450.0250.0250.0250.0250.15 to 0.350.15 to 0.35.0.
48、90 to 1.151.30 to 1.60.VanadiumG61180 6118 0.16 to 0.21 0.50 to 0.70 0.035 0.040 0.15 to 0.35 . . . 0.50 to 0.70 0.10 to 0.15G61500 6150 0.48 to 0.53 0.70 to 0.90 0.035 0.040 0.15 to 0.35 . . . 0.80 to 1.10 0.15 minMolybdenumG86150 8615 0.13 to 0.18 0.70 to 0.90 0.035 0.040 0.15 to 0.35 0.040 to 0.7
49、0 0.040 to 0.60 0.15 to 0.25A752M043taken from different pieces of a heat may differ withinpermissible limits from each other and from the heat analysis.Table 5 shows the permissible variations for product analysisof alloy steel. The results of the product analysis, except lead,shall not vary both above and below the specified ranges.6.3.1 The location from which chips for product analysis areobtained is important because of normal segregation. For rodsand wire, chips must be taken by milling or machining the fullcross section of the sample.6.3.1.1 Steel
