SAE J409-1995 化学成分偏差

1、400 Commonwealth Drive, Warrendale, PA 15096-0001Submitted for recognitionJ409Issued 1942-01 Reaffirmed 1995-02 Superseding J409 DEC90PRODUCT ANALYSISPERMISSIBLE VARIATIONS FROM SPECIFIEDCHEMICAL ANALYSIS OF A HEAT OR CAST OF STEELForewordThis reaffirmed document has been changed only to reflect the

2、 new SAE Technical Standards Board format.1. ScopeSupplementary to the heat or cast analysis, a product analysis may be made on steel in the SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this

3、report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelle

4、d. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (412 772-8512 FAX: (412 776-0243TO PLACE A DOCUMENT ORDER; (412 776-4970 FAX: (412 776-0790SAE WEB ADDRESS SAE J409 Reaffirmed FEB95RationaleNot applicable.Relationship of SAE Standard to ISO St

5、andardNot applicable.ApplicationSupplementary to the heat or cast analysis, a product analysis may be made on steel in the semifinished or finished form. For definitions and methods of sampling steel for product chemical analysis, refer to SAE J408.A product analysis is a chemical analysis of the se

6、mifinished or finished steel to determine conformanceto the specification requirements. The range of the specified chemical composition is normally expanded to take into account deviations associated with analytical reproducibility and the heterogeneity of the steel. Individual determinations may va

7、ry from the specified heat or cast analysis ranges or limits to the extent shown in Tables 1 through 5. The several determinations of any element in a heat or cast may not vary both above and below the specified range except for lead. Tables 1 through 5 provide permissible limits for various steel f

8、orms and composition types.Rimmed or capped steels are not subject to product analysis limits because they are characterized by an inherently large variation in chemical composition. Also, for rephosphorized and resulfurized steels, the product analysis tolerance limits are not applicable for phosph

9、orus and sulfur because of the degree to which these elements segregate.Boron is not subject to product analysis tolerances.Reference SectionSAE J408Methods of Sampling Steel for Chemical AnalysisASTM A 6Specification for General Requirements for Rolled Steel Plates, Shapes, Sheet Piling, and Bars f

10、or Structural UseASTM A 480/A 480MSpecification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and StripASTM A 513Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing ASTM A 519Specification for Seamless Carbon and Alloy Steel Mechanical Tubing Developed by the SAE Iron and Steel Technical Committe