1、Designation: A 263 09Standard 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 () 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 ste
3、el 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 standard. The values given in parentheses are mathematicalconversion
4、s to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:3A 6/A 6M Specification for General Requirements forRolled Structural Steel Bars, Plates, Shapes, and SheetPilingA 20/A 20M Specification for General Requirements forSteel Pl
5、ates for Pressure VesselsA 240/A 240M Specification for Chromium andChromium-Nickel Stainless Steel Plate, Sheet, and Stripfor Pressure Vessels and for General ApplicationsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 480/A 480M Specification for General Requirements fo
6、rFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripA 578/A 578M Specification for Straight-Beam UltrasonicExamination of Rolled Steel Plates for Special Applica-tionsA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel Products2.2 Other Standards:ASME Code
7、Boiler and Pressure Vessel Code, Section IX,Welding Qualifications43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 This material is considered as single-clad or double-clad stainless chromium-steel plate, depending on whether oneor both sides are covered.3.1.2 alloy claddingth
8、e stainless chromium steel compo-nent of the composite plate.3.1.3 base metal (backing steel)component to which thealloy cladding is applied, usually the greater percentage of thecomposite plate.3.1.4 integrally and continuously bondeda condition inwhich the alloy cladding and base metal are brought
9、 together toform a metallurgical bond at essentially the entire interface ofthe two metals by means other than those processes that do notproduce a homogeneous composite plate.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for mater
10、ial ordered under thisspecification. Such requirements may include, but are notlimited to, the following:4.1.1 Quantity (weight or number of pieces).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 speci
11、fication.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 cladding 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 Sec
12、tion 10). Specifywhether applicable to the cladding alloy, backing steel, or both.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.11 for Steel Plates for Boilers and Pressure Vessels.C
13、urrent edition approved May 1, 2009. Published June 2009. Originallyapproved in 1943. Last previous edition approved in 2003 as A 263 03.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-263 in Section II of that Code.3For referenced ASTM standards, visit the ASTM
14、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.4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park
15、Ave., New York, NY 10016-5990, http:/www.asme.org.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.4.1.7 Mechanical properties including shear test if required(see Sect
16、ions 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.4.2 In addition to the basic requirements of this specificationand the backing steel specification, certain supplementa
17、ryrequirements 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 sp
18、ecification 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 shal
19、l be made 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
20、to the 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 andtemp
21、ered, or 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
22、composite 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-
23、sition prescribed 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 c
24、onform to 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.(1) The nominal composite g
25、age is less than or equal to112 in. (38 mm).(2) The specified minimum tensile strength of the base steelis less than or equal to 70 000 psi (485 MPa).(3) 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 b
26、e not less thanthe minimum 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
27、 steel only for clad plates that meet one of thefollowing conditions. The properties thus determined shallmeet all of the tensile test requirements for the base steel.(1) The composite gage is greater than 112 in. (38 mm).(2) The specified minimum tensile strength of the base steelis greater than 70
28、 000 psi (485 MPa).(3) The specified 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
29、.7.2 Tests for strength of the bond, 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 specif
30、ied,shall be made in the manner indicated in Fig. 1. The minimumcladding thickness for shear testing shall be 0.075 in. (1.9 mm)exclusive as ordered. Testing for shear strength for clad plateswith minimum cladding thickness of 0.075 in. (1.9 mm) or lessshall be permitted upon agreement between the p
31、urchaser andthe manufacturer.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 madewith the alloy cladding in compression to determine the qualityof the bond. These bend tests
32、 shall be made in the manner ofthe tension tests indicated in Fig. 2 and 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
33、than 50 % separation on both edgesof the bent portion. Greater separation shall be cause forrejection.7.3 Methods and practices relating to mechanical testingrequired by this specification shall be in accordance with theTest Methods and Definitions of A 370.A2630928. Number of Tests and Retests8.1 O
34、ne or more tension tests, as required by the specifica-tions for the base metal and, 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 ifreq
35、uired.8.2 If any test specimen shows defective machining ordevelops flaws, it may be 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 th
36、e alternative bond strengthtests shall be taken at right angles to longitudinal axis 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 F
37、or plates 112 in. (38 mm) and under in thicknesstension test specimens shall be full thickness of the materialexcept as specified in 7.1.2 and 7.1.3.9.5 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 req
38、uirements of the specificationfor the base steel.9.6 The bend test specimen used for bond strength determi-nation shall be 112 in. (38 mm) wide 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 r
39、educing the thickness of the specimen, boththe alloy cladding and the base steel shall be machined 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
40、specimen used for bond strength determinationmay have the corners rounded to a radius not over116 in. (1.6Metric Equivalentsin. 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 CladPlateNOTE 1When necessary, it is permissible to use a n
41、arrower 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 parallelsection; either a set of nine punch marks 1 in. apart, or one or more
42、 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 LengthNOTE 1The gage length and fillets shall be as shown, but the endsmay be of
43、 any shape to fit the holders of the testing machine in such a waythat the load shall be axial. The reduced section shall have a gradual taperfrom the ends toward the center, with the ends 0.003 to 0.005 in. larger indiameter than the center.FIG. 3 Standard Round Tension Test Specimen with 2-in. Gag
44、eLengthA263093mm) 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
45、 instrumental 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
46、line of the cladding when thereis 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 millings takenfrom the final piece or a broken test
47、 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 thickness from thebonded side, not to exceed116 in. (1.6
48、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 cladding without contamina-tion, 50 % of the cladding sh
49、all 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 theTest Methods, Practices, and Terminology of A 751.10.4 Results of the product analysis 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 shall
