1、Designation: A 513 08aStandard Specification forElectric-Resistance-Welded Carbon and Alloy SteelMechanical Tubing1This standard is issued under the fixed designation A 513; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 electri
3、c-resistance-welded car-bon and alloy steel tubing for use as mechanical tubing.1.2 This specification covers mechanical tubing made fromhot- or cold-rolled steel.1.3 This specification covers round, square, rectangular, andspecial shape tubing.TypeSize Range(Round Tubing)Electric-Resistance-Welded
4、Tubingfrom Hot-Rolled Steeloutside diameter from12to 15 in. (19.0 to 381.0 mm)wall from 0.065 to 0.650 in.(1.65 to 16.50 mm)Electric-Resistance-Welded Tubingfrom Cold-Rolled Steeloutside diameter from38 to 12 in.(9.92 to 304.8 mm)wall from 0.022 to 0.134 in. (0.71to 3.40 mm)1.4 Optional supplementar
5、y requirements are provided andwhen desired, shall be so stated in the order.1.5 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Refer
6、enced 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 ShipmentA 1040 Guide for Specifying Harmonized Standard GradeCompositions for Wrought Carbon, Low-Alloy, and
7、AlloySteelsE 1806 Practice for Sampling Steel and Iron for Determi-nation of Chemical CompositionE 213 Practice for Ultrasonic Examination of Metal Pipeand TubingE 273 Practice for Ultrasonic Examination of the WeldZone of Welded Pipe and TubingE 309 Practice for Eddy-Current Examination of Steel Tu
8、-bular Products Using Magnetic SaturationE 570 Practice for Flux Leakage Examination of Ferromag-netic Steel Tubular Products2.2 ANSI Standard:B 46.1 Surface Texture32.3 Military Standards:MIL-STD-129 Marking for Shipment and Storage42.4 Federal Standard:Fed. Std. No. 123 Marking for Shipments (Civi
9、l Agencies)43. Ordering Information3.1 Orders for material under this specification shouldinclude the following as required to adequately describe thedesired material:3.1.1 Quantity (feet or number of lengths),3.1.2 Name of material (electric resistance-welded carbonor alloy steel mechanical tubing)
10、,3.1.3 Types, conditions and code letters, (See Sections 1 and12),3.1.4 Thermal condition, (See 12.2),3.1.5 Flash condition, (See 12.3),3.1.6 Grade designation, if required, (See Section 5),3.1.7 Report chemical analysis and product analysis, ifrequired (See Sections 6 and 7),3.1.8 Individual supple
11、mentary requirements, if required(S1 to S10, inclusive),3.1.9 Cross section (round, square, rectangular and specialshapes),3.1.10 Dimensions, round, outside and inside and wallthickness (See 8.1 and 8.2) or square and rectangular, outsidedimension and wall thickness and corner radii, if required (Se
12、e9.1 and 9.2),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Oct. 1, 2008. Published November 2008. Originallyapproved in
13、1964. Last previous edition approved in 2008 as A 513 08.2For 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 ASTM website.3Ava
14、ilable from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1*A Summary of Changes section appears at the
15、end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.11 Length, round, mill lengths or definite cut length (See8.3), square and rectangular, specified length (See 9.4),3.1.12 Squareness of cut, round tubing, if req
16、uired, (See8.4),3.1.13 Burrs removed, if required (See 11.2),3.1.14 Protective coating (See 14.1),3.1.15 Special packaging (See 17.1),3.1.16 Specification designation,3.1.17 End use,3.1.18 Special requirements,3.1.19 Special marking (See Section 16), and3.1.20 Straightness Test Method (See 8.5 and 9
17、.6).4. Materials and Manufacture4.1 The steel may be made by any process.4.2 If a specific type of melting is required by the purchaser,it shall be as stated on the purchase order.4.3 The primary melting may incorporate separate degas-sing or refining, and may be followed by secondary melting,such a
18、s electroslag or vacuum-arc remelting. If secondarymelting is employed, the heat shall be defined as all of theingots remelted from a single primary heat.4.4 Steel may be cast in ingots or may be strand cast. Whensteel of different grades is sequentially strand cast, identifica-tion of the resultant
19、 transition material is required. Theproducer shall remove the transition material by an establishedprocedure that positively separates the grades.4.5 Tubes shall be made by the electric-resistance-weldedprocess and shall be made from hot- or cold-rolled steel asspecified.5. Chemical Composition5.1
20、The steel shall conform to the requirements as tochemical composition prescribed in Table 1 or Table 2 (SeeSpecification A 1040). If no grade is specified, Grades MT1010 to MT 1020 may be furnished. Analyses of steels otherthan those listed are available. To determine their availability,the purchase
21、r should contact the producer.5.2 When a carbon steel grade is ordered under this speci-fication, supplying an alloy grade that specifically requires theaddition of any element other than those listed for the orderedgrade in Tables 1 and 2 is not permitted.6. Heat Analysis6.1 An analysis of each hea
22、t of steel shall be made by thesteel manufacturer to determine the percentages of the ele-ments specified; if secondary melting processes are employed,the heat analysis shall be obtained from one remelted ingot orthe product of one remelted ingot of each primary melt. Theheat analysis shall conform
23、to the requirements specified,except that where the heat identity has not been maintained orwhere the analysis is not sufficiently complete to permitconformance to be determined, the chemical compositiondetermined from a product analysis made by the tubularmanufacturer shall conform to the requireme
24、nts specified forheat analysis. When requested in the order or contract, a reportof such analysis shall be furnished to the purchaser.7. Product Analysis7.1 When requested on the purchase order, a product analy-sis shall be made by the supplier. The number and source ofsamples for such product analy
25、sis shall be based on theindividual heat or lot identity of one of the following forms ofmaterial:7.1.1 Heat Identity MaintainedOne product analysis perheat shall be made on either the flat-rolled stock or tube.7.1.2 Heat Identity Not MaintainedA product from onetube per 2000 ft (610 m) or less for
26、sizes over 3 in. (76.2 mm),and one tube per 5000 ft (150 m) or less for sizes 3 in. andunder.7.2 Samples for product analysis except for spectrochemicalanalysis shall be taken in accordance with Practice E 1806. Thecomposition thus determined shall correspond to the require-ments of Tables 1-3.7.3 I
27、f the original test for product analysis fails, retests oftwo additional lengths of flat-rolled stock or tubes shall bemade. Both retests for the elements in question shall meet therequirements of the specification; otherwise, all remainingmaterial in the heat or lot shall be rejected or, at the opt
28、ion ofthe producer, each length of flat-rolled stock or tube may beindividually tested for acceptance. Lengths of flat-rolled stockor tubes which do not meet the requirements of the specifica-tion shall be rejected.8. Permissible Variations in Dimensions for RoundTubing8.1 Diameter and Wall Thicknes
29、s (Hot-Rolled Steel)Variations from specified outside diameter for “as-welded” and“as-welded and annealed” tubing made from hot-rolled steelshall not exceed the amounts prescribed in Table 4. Permissiblevariations in outside diameter for tubing that has been sink-drawn for closer tolerance on outsid
30、e diameter are shown inTable 5. Permissible variations in wall thickness for tubing thathas been sink-drawn for closer tolerances on outside diametersare 610 % of the nominal wall or 60.010 in. (0.25 mm),whichever is greater. Permissible variations in wall thicknessfor tubing made from hot-rolled st
31、eel are shown in Table 6.Permissible variation in outside and inside diameter for tubingTABLE 1 Chemical Requirements for Standard Low-CarbonSteelsANOTE 1 Chemistry represents heat analysis. Product analysis, exceptfor rimmed or capped steel, is to be in accordance with usual practice asshown in Tab
32、le 3.GradeDesignationChemical Composition Limits, %Carbon ManganesePhosphorus,maxSulfur,maxMTB1010 0.020.15 0.300.60 0.035 0.035MT 1015 0.100.20 0.300.60 0.035 0.035MT X 1015 0.100.20 0.600.90 0.035 0.035MT 1020 0.150.25 0.300.60 0.035 0.035MT X 1020 0.150.25 0.701.00 0.035 0.035ARimmed or capped st
33、eels which may be used for the above grades arecharacterized by a lack of uniformity in their chemical composition, and for thisreason product analysis is not technologically appropriate unless misapplication isclearly indicated.BThe letters MT under grade designation indicate Mechanical Tubing.A 51
34、3 08a2made from hot-rolled steel that has been Drawn Over aMandrel (DOM) for closer tolerances are shown in Table 5with wall tolerances shown in Table 7.8.2 Diameter and Wall Thickness (Cold-Rolled Steel)Variations in outside diameter and inside diameter of “as-welded” and “as-welded and annealed” t
35、ubing made fromcold-rolled steel are shown in Table 8. Outside diametertolerances for cold-rolled steel tubing, sink drawn and DOM,are shown in Table 5. Wall thickness tolerances for“ as-welded” tubing made from cold-rolled steel are shown in Table9. Permissible variations in wall thickness for roun
36、d tubing,DOM for closer tolerances, are shown in Table 7. Permissiblevariations in wall thickness for tubing that has been sink-drawnfor closer tolerances on outside diameter are 610 % of thenominal wall or 60.010 in. (0.25 mm), whichever is greater.8.3 Length (Hot- and Cold-Rolled Steel)Mechanical
37、tub-ing is commonly furnished in mill lengths 5 ft (1.5 m) and over.Definite cut lengths are furnished when specified by thepurchaser. Tolerances for definite cut lengths round tubing shallbe as given in Tables 10 and 11.8.4 Squareness of Cut (Hot- and Cold-Rolled Steel)Whenspecified, tolerance for
38、squareness of cut of round tubing shallbe as given in Table 12. Measurements are made with use of an“L” square and feeler gage. Side leg of square to be equal totube diameter except minimum length of 1 in. (25.4 mm) andmaximum length of 4 in. (101.6 mm). Outside diameter burr tobe removed for measur
39、ement.8.5 Straightness The straightness tolerance for roundtubing is 0.030 in./3 ft (0.76 mm/1m) lengths to 8.000 in. (203mm) outside diameter. For 8.000 in. outside diameter andabove, straightness tolerance is 0.060 in./3 ft (1.52 mm/1 m)TABLE 2 Chemical Requirements for Other Carbon and Alloy Stee
40、lsANOTE 1Chemistry represents heat analysis. Product analysis, except for rimmed or capped steel, is to be in accordance with usual practice as shownin Table 3.GradeDesignationChemical Composition Limits, %Carbon ManganesePhosphorus,maxSulfur, max Silicon Nickel Chromium Molybdenum1008 0.10 max 0.50
41、 max 0.035 0.035 . . . .1009 0.15 max 0.60 max 0.035 0.035 . . . .1010 0.080.13 0.300.60 0.035 0.035 . . . .1012 0.100.15 0.300.60 0.035 0.035 . . . .1015 0.130.18 0.300.60 0.035 0.035 . . . .1016 0.130.18 0.600.90 0.035 0.035 . . . .1017 0.150.20 0.300.60 0.035 0.035 . . . .1018 0.150.20 0.600.90 0
42、.035 0.035 . . . .1019 0.150.20 0.701.00 0.035 0.035 . . . .1020 0.180.23 0.300.60 0.035 0.035 . . . .1021 0.180.23 0.600.90 0.035 0.035 . . . .1022 0.180.23 0.701.00 0.035 0.035 . . . .1023 0.200.25 0.300.60 0.035 0.035 . . . .1024 0.180.25 1.301.65 0.035 0.035 . . . .1025 0.220.28 0.300.60 0.035 0
43、.035 . . . .1026 0.220.28 0.600.90 0.035 0.035 . . . .1027 0.220.29 1.201.55 0.035 0.035 . . . .1030 0.280.34 0.600.90 0.035 0.035 . . . .1033 0.300.36 0.701.00 0.035 0.035 . . . .1035 0.320.38 0.600.90 0.035 0.035 . . . .1040 0.370.44 0.600.90 0.040 0.050 . . . .1050 0.480.55 0.600.90 0.040 0.050 .
44、 . . .1060 0.550.65 0.600.90 0.040 0.050 . . . .1340 0.380.43 1.601.90 0.035 0.040 0.150.35 . . .1524 0.190.25 1.351.65 0.040 0.050 . . . .4118 0.180.23 0.700.90 0.035 0.040 0.150.35 . 0.400.60 0.080.154130 0.280.33 0.400.60 0.035 0.040 0.150.35 . 0.801.10 0.150.254140 0.380.43 0.751.00 0.035 0.040
45、0.150.35 . 0.801.10 0.150.255130 0.280.33 0.700.90 0.035 0.040 0.150.35 . 0.801.10 .8620 0.180.23 0.700.90 0.035 0.040 0.150.35 0.400.70 0.400.60 0.150.258630 0.280.33 0.700.90 0.035 0.040 0.150.35 0.400.70 0.400.60 0.150.25AWhere the ellipsis (.) appears in this table, there is no requirement.TABLE
46、 3 Tolerances for Product Analysis for Steels Shown inTables 1 and 2A,BElementLimit, or Maximum ofSpecified Range, %Variation, Over theMaximum Limit or Underthe Minimum LimitUnder min,%Over max,%Carbon to 0.15, incl 0.02 0.03over 0.15 to 0.40, incl 0.03 0.04over 0.40 to 0.55, incl 0.03 0.05Manganese
47、 to 0.60, incl 0.03 0.03over 0.60 to 1.15, incl 0.04 0.04over 1.15 to 1.65, incl 0.05 0.05Phosphorus . 0.01Sulfur . 0.01Silicon to 0.30, incl 0.02 0.03over 0.30 to 0.60 0.05 0.05Nickel to 1.00, incl 0.03 0.03Chromium to 0.90, incl 0.03 0.03over 0.90 to 2.10, incl 0.05 0.05Molybdenum to 0.20, incl 0.
48、01 0.01over 0.20 to 0.40, incl 0.02 0.02AIndividual determinations may vary from the specified heat limits or ranges tothe extent shown in this table, except that any element in a heat may not vary bothabove and below a specified range.BWhere the ellipsis (.) appears in this table, there is no requi
49、rement.A 513 08a3TABLE 4 Diameter Tolerances for Type I (A.W.H.R.) Round TubingNOTE 1Measurements for diameter are to be taken at least 2 in.Afrom the ends of the tubes.Outside DiameterRange, in.AWall Thickness Flash-in-TubingB,CFlash Controlledto 0.010 in. maxTubingC,DFlash Controlledto 0.005 in. maxTubingE,DBwgFin.AOutsideDiameter, 6OutsideDiameter,6OutsideDiameter,6InsideDiameter,6Tolerances, in.A,G12 to 118 , incl 16 to 10 0.065 to 0.134 0.0035 0.0035 0.0035 0.020Over 118 to
