目录简介 | Foreword 1 Scope 2 Normative References 3 order Information 4 Classifications and Code 5 Size, Dimensions, Weight and Allowance 6 Technical Requirements 6.1 Designations, Code and Chemical Composition 6.2 Smelting Method 6.3 State of Delivery 6.4 Mechanical Properties 6.5 Upsetting 6.6 Macroscopic Structure 6.7 Non-metallic Inclusion 6.8 Decarburized Layer 6.9 Surface Quality 6.10 Special Requirements 7 Test Methods 8 Test Rules 8.1 Inspections and Acceptance 8.2 Batch Forming Rules 8.3 Quantity and Location for Sampling 8.4 Re-inspection and Judging Rules 9 Packaging, Marking and Quality Certificate Annex A (Normative) Normative References - Methods for Chemical Analysis |