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ASTM_A 903_Steel Castings, Surface Acceptance Standards_MT_PT
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Designati Desi gnation: on: A 903/A 903M – 99 (Reap (Reapprov proved ed 2003)
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Standard Specification for
Steel Castings, Surface Acceptance Standards, Magnetic Particle and Liquid Penetrant Inspection1 This standard is issued under the fixed designation designation A 903/A903M; the number immediately following following the designation designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Sco Scope pe
4. Ordering Information Information
1.1 Thi Thiss spe specifi cificat cation ion cov covers ers acc accept eptanc ancee cri criter teria ia for the surface surfa ce inspe inspectio ction n of steel castings when nonde nondestruc structive tively ly examined by magnetic particle or liquid penetrant inspection. 1.2 This specificati specification on is to be used wherever wherever the inqu inquiry iry,, contr con tract act,, ord order er,, or spe specifi cificat cation ion sta states tes tha thatt the acc accept eptanc ancee standards for magnetic particle or liquid penetrant inspection shall be in accordance with Specification A 903/A 903M. 1.3 The values stated stated in either inch-pound inch-pound units units or SI units are to be regarded separately as standard. Within the text the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Combining values from the two systems may result in a nonconformance with this specification.
4.1 The inq inquir uiry y and ord order er sho should uld ind indica icate te information: 4.1.1 Nondestructive —Pract actice ice E Nondestructive Practice—Pr penetr pen etrant ant ins inspec pectio tion n or Gui Guide de E 709 for ma inspecti insp ection. on. Unles Unlesss a spec specific ific technique technique with within in specified, the choice shall be the option of the ma 4.1.2 Personnel Qualifications . 4.1.3 Extent of Inspection —The number of cas extent of casting surfaces to be examined. 4.1.4 Acceptance Level —If more than one acce is specified for different locations, a nondestructiv ing identifying acceptance levels and locations sh pany the inquiry and order. 4.1.5 Supplementary Requirements , if any.
2. Referenced Documents
5. Personnel Qualifications Qualifications
2.1 ASTM Standards: E 165 Test Method for Liqui Liquid d Penet Penetrant rant Examination Examination2 E 709 Guide for Magn Magnetic etic Particle Particle Exami Examinati nation on 2
5.1 Perso Personnel nnel performing performing examination examination shall be accordanc acco rdancee with an acce acceptabl ptablee writ written ten proce upon between the purchaser and manufacturer.
3. Terminology
6. Eval Evaluati uation on of Indic Indicatio ations ns
3.1 Definitions: 3.1.1 linear indica icatio tion n who whose se len length gth is linear indi indicati cations ons—an ind equal to or greater than three times its width shall be classified as a linear indication. 3.1.2 nonlinear indications—an indication whose length is less than three times its width shall be classified as nonlinear.
6.1 All relevant relevant indications indications shall be evaluate Sign upcriteria. to vote on this title the acceptance 6.2 Mechanical discont inuities indicated by usefulare indicated Useful discontinuities Not the penetrant or retention of the magnetic particle medium med ium.. How Howeve everr, fal false se ind indica icatio tions ns may be localized surface irregularities, metallurgical disco
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ASTM_A 903_Steel Castings, Surface Acceptance Standards_MT_PT
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A 903/A 903M – 99 (2003) 7. Acceptance Criteria 7.1 Individual relevant linear and nonlinear indications exceeding the specified acceptance levels in Table 1 are unacceptable. 7.2 Ten or more relevant indications, although individually acceptable, are collectively unacceptable when they occur in any 6 in. 2[38.7 cm.2] of casting surface, with the major dimension of this area not to exceed 6 in. [152 mm] taken in the most unfavorable orientation relative to the indications being evaluated. 7.3 When the casting surface is being inspected to Acceptance Levels I, II, or III the following relevant indications, although individually acceptable are collectively unacceptable when they are grouped as described in 7.3.1 and 7.3.2. TABLE 1 Surface Inspection Acceptance Criteria Indication Size, in. [mm] Type Linear Nonlinear
Level I ⁄ 16 [1.6] 1 ⁄ 8 [3.2]
1
Level II 1 ⁄ 8 [3.2] 3 ⁄ 16 [4.8]
Level III ⁄ 16 [4.8] 3 ⁄ 16 [4.8]
3
Level IV 1 ⁄ 4 [6.4] 1 ⁄ 4 [6.4]
Level V ⁄ 8 [9.5] 3 ⁄ 8 [9.5]
3
7.3.1 Four or more in a line, separated by 1 ⁄ or less edge-to-edge. 7.3.2 Four or more that are clustered an separated from the nearest adjoining indication by mm] or less edge-to-edge. 7.4 When the casting surface is being inspe tance Levels IV or V, individually acceptable rele tions grouped as described in 7.3.1 and 7.3.2 sha ered a single relevant linear and nonlin respectively, and be evaluated in accordance with 8. Certification
8.1 The manufacturer shall certify that performed in accordance with the appropriate pra tice E 165 for liquid penetrant inspection or Gui magnetic particle inspection) and that the parts w meet the requirements of the specified inspec Specification A 903/A 903M (including year-date 8.2 When certified test reports are required by th Supplementary Requirement S1 shall be specified
SUPPLEMENTARY REQUIREMENTS The following supplementary requirements shall apply only when specified by the purchaser in the contract or order. You're Reading a Preview S1. Certified Test Reports
Unlock full access withS1.1.5 a free trial. Vendor name,
S1.1.6 NDE procedure, S1.1 A certified test report shall be furnished by the manufacturer, listing the following as a minimum: S1.1.7Trial Acceptance criteria, Download With Free S1.1.1 Customer name, S1.1.8 Vendor control number, S1.1.2 Purchase order number, S1.1.9 Name of inspector, and S1.1.3 Material, S1.1.10 Inspector qualification level. S1.1.4 Description of part,
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ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such Useful Not patent usefulrights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and
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