1、Designation: A 263 03Standard Specification forStainless Chromium Steel-Clad Plate1This standard is issued under the fixed designation A 263; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pa
2、rentheses indicates the year of last reapproval. Asuperscript 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 specification2covers plate of a carbon steel orlow-alloy st
3、eel base to which is integrally and continuouslybonded on one or both sides a layer of stainless chromiumsteel. The material is generally intended for pressure vesseluse.1.2 The values stated in inch-pound units are to be regardedas the standard.2. Referenced Documents2.1 ASTM Standards:A 6/A 6M Spe
4、cification for General Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPiling3A 20/A 20M Specification for General Requirements forSteel Plates for Pressure Vessels3A 240/A 240M Specification for Chromium andChromium-Nickel Stainless Steel Plate, Sheet, and Stripfor Pressure V
5、essels and for General Applications4A 370 Test Methods and Definitions for Mechanical Testingof Steel Products4A 480/A 480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and Strip4A 578/A 578M Specification for Straight-Beam UltrasonicExaminati
6、on of Plain and Clad Steel Plates for SpecialApplications3A 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel Products42.2 ASME Code:Boiler and Pressure Vessel Code, Section IX, WeldingQualifications53. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 This
7、 material is considered as single-clad or double-clad stainless chromium-steel plate, depending on whether oneor both sides are covered.3.1.2 base metal (backing steel)component to which thealloy cladding is applied, usually the greater percentage of thecomposite plate.3.1.3 alloy claddingthe stainl
8、ess chromium steel compo-nent of the composite plate.3.1.4 integrally and continuously bondeda condition inwhich the alloy cladding and base metal are brought together toform a metallurgical bond at essentially the entire interface ofthe two metals by means other than those processes that do notprod
9、uce a homogeneous composite plate.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Such requirements may include, but are notlimited to, the following:4.1.1 Quantity (weight or number of p
10、ieces).4.1.2 Cladding alloy specification (UNS or ASTM Specifi-cation A 240/A 240M) and whether cladding is for corrosionallowance only.4.1.3 Base metal specification.4.1.4 Bond integrity Class (1, 3, or 5; see Section 13).4.1.5 Dimensions including the minimum or nominal thick-nesses of the claddin
11、g alloy and the backing steel, or of thetotal composite and if more or less restrictive thicknesstolerances apply.4.1.6 Product analysis, if required (see Section 10). Specifywhether applicable to the cladding alloy, backing steel, or both.4.1.7 Mechanical properties including shear test if required
12、(see Sections 7, 8, and 9).4.1.8 Finish (see Section 12).4.1.9 Restrictions, if required, on repair by welding (seeSection 14).4.1.10 Additions to the specification or special require-ments.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloy
13、s and is the direct responsibility of SubcommitteeA01.11 for Steel Plates for Boilers and Pressure Vessels.Current edition approved Feb. 2, 2006. Published April 2003. Originallyapproved in 1943. Last previous edition approved in 1999 as A 263 94a (1999).2For ASME Boiler and Pressure Vessel Code app
14、lications see related Specifi-cation SA-263 in Section II of that Code.3Annual Book of ASTM Standards, Vol 01.04.4Annual Book of ASTM Standards, Vol 01.03.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.1*A Sum
15、mary 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.4.2 In addition to the basic requirements of this specificationand the backing steel specification, certain supplementaryrequi
16、rements are available when necessary to meet end userequirements. These include:4.2.1 Nondestructive examination,4.2.2 Impact testing, and4.2.3 Simulated Post-Weld Heat Treatment of MechanicalTest Coupons (SPWHT).4.3 The purchaser is referred to the listed supplementaryrequirements in this specifica
17、tion and to the detailed require-ments in Specification A 20/A 20M.4.4 If the requirements of this specification are in conflictwith the requirements of Specification A 20/A 20M, the re-quirements of this specification shall prevail.5. Materials and Manufacture5.1 Process:5.1.1 The steel shall be ma
18、de by the open-hearth, electric-furnace, or basic-oxygen processes, or by secondary processeswhereby steel made from these primary processes is remeltedusing, but not limited to electroslag remelting or vacuum-arcremelting processes.5.1.2 The alloy-cladding metal may be metallurgicallybonded to the
19、base metal by any method that will produce aclad steel that will conform to the requirements of thisspecification.5.2 Heat TreatmentUnless otherwise specified or agreedupon between the purchaser and the manufacturer, all platesshall be furnished in the normalized, tempered, normalized andtempered, o
20、r quenched and tempered condition as permitted bythe backing steel specification. Stress relieving of the compos-ite plate by heating subcritically is permitted, provided thetemperature is 75F 40C or more below the minimumtempering temperature (when tempered).6. Chemical Composition6.1 The composite
21、 plate shall conform to any desiredcombination of alloy-cladding metal and base metal as de-scribed in 6.2 and 6.3 and as agreed upon between thepurchaser and the manufacturer.6.2 Alloy Cladding MetalThe alloy-cladding metal speci-fied shall conform to the requirements as to chemical compo-sition pr
22、escribed for the respective chromium steel in Specifi-cation A 240/A 240M.6.3 Base MetalThe base metal shall be carbon steel orlow-alloy steel conforming to the ASTM specifications forsteels for pressure vessels or other as agreed by the purchaserand the manufacturer. The base metal shall conform to
23、 thechemical requirements of the specification to which it isordered.7. Mechanical Properties7.1 Tensile Requirements:7.1.1 The tensile properties shall be determined by a tensiontest of the composite plate for clad plates that meet all of thefollowing conditions.(a) The nominal composite gage is le
24、ss than or equal to112 in.(b) The specified minimum tensile strength of the base steelis less than or equal to 70 000 psi 485 MPa.(c) The specified minimum yield strength of the base steelis less than or equal to 40 000 psi 275 MPa.The tensile properties thus determined shall be not less thanthe min
25、imum and not more than 5000 psi 35 MPa over themaximum prescribed in the specification for the base steelused. All other tensile test requirements of the specification forthe base steel shall be met.7.1.2 The tensile properties shall be determined by a tensiontest of the base steel only for clad pla
26、tes that meet one of thefollowing conditions. The properties thus determined shallmeet all of the tensile test requirements for the base steel.(a) The composite gage is greater than 112 in.(b) The specified minimum tensile strength of the base steelis greater than 70 000 psi 485 MPa.(c) The specifie
27、d minimum yield strength of the base steelis greater than 40 000 psi 275 MPa.7.1.3 If the cladding is for corrosion allowance only, thecladding need not be included in the tensile test. The tensileproperties thus determined shall meet the base steel require-ments.7.2 Tests for strength of the bond,
28、when required, must bespecified by the purchaser and shall consist of one of thefollowing.7.2.1 Shear StrengthWhen required by the purchaser, theminimum shear strength of the alloy cladding and base metalsshall be 20 000 psi 140 MPa. The shear test, when specified,shall be made in the manner indicat
29、ed in Fig. 1. The minimumcladding thickness for shear testing shall be 0.075 in. 1.9 mmexclusive as ordered.7.2.2 Bond StrengthAs an alternative to the shear strengthtest provided in 7.2.1, or when agreed upon by the purchaserand the manufacturer, or both, three bend tests shall be madeMetric Equiva
30、lentsin. mm in. mm0.005 0.127 1 25.418 3.18 212 64.534 19.1 3 76.2FIG. 1 Test Specimen and Method of Making Shear Test of CladPlateA263032with the alloy cladding in compression to determine the qualityof the bond. These bend tests shall be made in the manner ofthe tension tests indicated in Fig. 2 a
31、nd shall be bent through anangle of 180 to the bend diameters provided for in eitherSpecification A 6/A 6M or Specification A 20/A 20M, Appen-dix X4 or equivalent, as applicable. At least two of the threetests shall show not more than 50 % separation on both edgesof the bent portion. Greater separat
32、ion shall be cause forrejection.7.3 Methods and practices relating to mechanical testingrequired by this specification shall be in accordance with TestMethods and Definitions A 370.8. Number of Tests and Retests8.1 One or more tension tests, as required by the specifica-tions for the base metal and,
33、 when specified, one shear test orthree bond bend tests shall be made representing each plate asrolled. Each specimen shall be in the final condition of heattreatment required for the plate, including any SPWHT ifrequired.8.2 If any test specimen shows defective machining ordevelops flaws, it may be
34、 discarded and another specimensubstituted.9. Test Specimens9.1 The tension test specimens from plate shall conform tothe requirements prescribed in the specifications for the basemetal.9.2 Bend test specimens for the alternative bond strengthtests shall be taken at right angles to longitudinal axis
35、 of theplate.9.3 When required by the purchaser, the shear test specimenshould be taken near a corner of the plate, parallel to itslongitudinal axis, or other location that is representative of thefinal product.9.4 For plates 112 in. 38 mm and under in thicknesstension test specimens shall be full t
36、hickness of the materialexcept as specified in 7.1.1 and 7.1.2.9.5 For plates over 112 in. 38 mm in thickness, tensiontests shall be of the form shown in Fig. 3 and shall be of allbase steel conforming to the requirements of the specificationfor the base steel.9.6 The bend test specimen used for bon
37、d strength determi-nation shall be 112 in. wide 38 mm by not more than34 in.19 mm in thickness and shall be machined to the form anddimensions shown in Fig. 2, or may be machined with bothedges parallel. In reducing the thickness of the specimen, boththe alloy cladding and the base steel shall be ma
38、chined so as tomaintain the same ratio of clad metal to base steel as ismaintained in the plate, except that the thickness of the cladmetal need not be reduced below18 in. 3.1 mm. The sides ofthe bend test specimen used for bond strength determinationmay have the corners rounded to a radius not over
39、116 in. 1.6mm for plates, 2 in. 50 mm and under in thickness, and notover18 in. 3.1 mm for plates over 2 in. 50 mm in thickness.10. Product Analysis10.1 Product analysis may be required for the cladding alloyon the finished product. Chemical analysis may be accom-plished by wet chemical or instrumen
40、tal procedures. If wetchemical procedures are used, millings may be taken onlywhen the composite plate thickness is sufficient to permitobtaining millings without danger of contamination from theadjacent layer. If spectrometric procedures are used, the sampleshall be exposed on the center line of th
41、e cladding when thereNOTE 1When necessary, it is permissible to use a narrower specimen,but in such a case the reduced portion shall be not less than 1 in. in width.NOTE 2Punch marks for measuring elongation after fracture shall bemade on the flat or on the edge of the specimen and within the parall
42、elsection; either a set of nine punch marks 1 in. apart, or one or more setsof 8-in. punch marks may be used.NOTE 3The dimension t is the thickness of the test specimen asprovided for in the applicable material specifications.FIG. 2 Standard Rectangular Tension Test Specimen with 8-in.Gage LengthNOT
43、EThe gage length and fillets shall be as shown, but the ends maybe of any shape to fit the holders of the testing machine in such a way thatthe load shall be axial. The reduced section shall have a gradual taper fromthe ends toward the center, with the ends 0.003 to 0.005 in. larger indiameter than
44、the center.FIG. 3 Standard Round Tension Test Specimen with 2-in. GageLengthA263033is sufficient cladding thickness available so that there is nocontamination from the adjacent base metal.10.2 If product analysis is specified by the purchaser for thecladding alloy, it shall be made from drillings or
45、 millings takenfrom the final piece or a broken test specimen. For wetchemical analysis, in order to avoid contamination by the baseplate metal, millings of cladding samples shall be taken fromthe test coupon by removal and discard of all the base metalplate material, plus 40 % of the cladding thick
46、ness from thebonded side, not to exceed116 in. 1.6 mm. The material shallbe chemically cleaned and sufficient millings shall be taken torepresent the full cross-section of the remainder. If there isinsufficient cladding thickness available to spectrographicallyexpose on the center line of the claddi
47、ng without contamina-tion, 50 % of the cladding shall be removed and the sampleexposed on this surface.10.3 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods, Practices, and Terminology A 751.10.4 Results of the product analysis
48、 shall conform to therequirements of Section 7 of Specification A 480/A 480M.10.5 Results of the product analysis for the backing steelwhen required shall conform to the requirements of Section 7of Specification A 20/A 20M.11. Permissible Variations11.1 Permissible variations except for thickness sh
49、all be inaccordance with Specification A 20/A 20M.11.2 Minimum thickness of the alloy cladding metal and ofthe backing steel, or of the total composite plate shall be asrequired by purchase order documents when ordered to mini-mum thicknesses.11.3 Permissible variation in thickness when ordered tonominal thicknesses shall be 0.01 in. 0.3 mm under each forbacking steel or total composite, and 0.03 in. 0.8 mm underfor the alloy cladding.11.4 Permissible variations for excess thickness of the totalcomposite shall be the g
