Contents 1 Scope 2 Normative References 3 Terms and Definitions 4 Classification and Code 5 Order contents 6 Dimension, appearance, weight and allowable deviation 7 Technical requirements 8 Test method 9 Inspection Rules 10 Packing, Marking and Quality Certificate Appendix A (Informative) Comparison Table For New & Old Designations And Similar Designations Appendix B (Informative) Comparison Table for Designations in This Standard and Similar Designations Abroad Appendix C (Informative) Additional information for the use of steel with improved atmospheric corrosion resistance Appendix D (Informative) Guidelines for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels