ISO 2639 defines the case-hardened depth, and specifies methods for the determination of this depth, in steel.It is applicable tocarburized cases and carbonitrided cases;parts that, when heat treated to final hardness, have a hardness of less than 450 HV 1 at a distance of three times the case-hardened depth, from the surface.The case-hardened depth is defined by special agreement where these conditions are not met.                          
                          
                          
                            
                                
                                    
                                        Document identifier
                                        ISO 2639:2002 [ Withdrawn ]
                                     
                                    
                                        Title
                                        Steels - Determination and verification of the depth of carburized and hardened cases
                                     
                                                                        
                                        ISO Category
                                        TC 17/SC 7: Methods of testing (other than mechanical tests and chemical analysis)
                                     
                                    
                                    
                                        Publication date
                                        2002-11-01
                                     
                                                                        
                                    
                                        International Relationship
                                        
                                            BS EN ISO 2639:2002 * BS EN ISO 2639:2002                                        
                                     
                                    
                                    
                                    
                                        History of version
                                        
                                        ISO 18203:2016*ISO 2639:2002 [ Withdrawn ] * ISO 18203:2016 * ISO 2639:2002 * ISO 4970:1979 * ISO 3754:1976                                        
                                     
                                    
                                    
                                    
                                    
                                    
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