目录简介 | Contents Forward 1 Scope 2 Normative References 3 Representation Methods for Designation 4 Information of order 5 Dimension, Shape, Weight and Permissible deviation 6 Technical Requirements 6.1 Designation and chemical composition 6.2 Smelting method 6.3 Delivery state 6.4 Mechanical properties and processing property 6.5 Surface quality 6.6 Special requirements 7 Test Methods 8 Inspection Rules 9 Packaging, Marking and Quality Certificate 10 Rounding off Numerical Values 11 Approximate Comparison between Domestic and Oversea Designations Annex A (Informative) Approximate Comparison between Domestic and Oversea Designations |