• UNI EN 10084 : 2008

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    CASE HARDENING STEELS - TECHNICAL DELIVERY CONDITIONS

    Available format(s): 

    Superseded date:  08-10-2022

    Language(s): 

    Published date:  01-01-2008

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Classification and designation
      4.1 Classification
      4.2 Designation
    5 Information to be supplied by the purchaser
      5.1 Mandatory information
      5.2 Options
    6 Manufacturing process
      6.1 Melting process
      6.2 Deoxidation
      6.3 Manufacture of the product
      6.4 Heat-treatment condition and surface finish
          at the time of delivery
      6.5 Cast separation
    7 Requirements
      7.1 Chemical composition, hardness and hardenability
      7.2 Technological properties
      7.3 Structure
      7.4 Internal soundness
      7.5 Surface condition
      7.6 Dimensions, tolerances on dimensions and shape
    8 Inspection and testing
      8.1 Types and contents of inspection documents
      8.2 Specific inspection and testing
    9 Marking
    Annex A (normative) - Options
    Annex B (informative) - Dimensional standards applicable
            to products complying with this European Standard
    Annex C (normative) - Determining the microscopic non-metallic
            inclusions content
    Annex D (informative) - Comparison of steel grades specified
            in this European Standard and ISO 683-11:1987 and
            other steel grades previously standardized nationally
    Annex E (informative) - Classification of steel grades
            according to minimum tensile strength as a function
            of diameter after hardening and tempering at
            200 degrees C
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides the technical delivery requirements for: - semi-finished products, hot formed, for example blooms, billets, slabs, - bars, - rod, - wide flats, quarto plates, - hot-rolled sheet/plate and strip, - hammer and drop forgings, manufactured from the case hardening non alloyed or alloyed steels and supplied in one of the heat treatment conditions given for the different types of products.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes UNI 7846, UNI 8373 and UNI 8550. (03/2008)
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN ISO 14284:2002 Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996)
    EN 10052:1993 Vocabulary of heat treatment terms for ferrous products
    EN 10247:2017 Micrographic examination of the non-metallic inclusion content of steels using standard pictures
    EN ISO 6508-1:2016 Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1:2016)
    EN ISO 6506-1:2014 Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1:2014)
    ISO 6506-1:2014 Metallic materials Brinell hardness test Part 1: Test method
    EN 10079:2007 Definition of steel products
    EN 10085:2001 Nitriding steels - Technical delivery conditions
    EN 10027-2:2015 DESIGNATION SYSTEMS FOR STEELS - PART 2: NUMERICAL SYSTEM
    EN 10263-1:2017 Steel rod, bars and wire for cold heading and cold extrusion - Part 1: General technical delivery conditions
    EN 10089:2002 Hot-rolled steels for quenched and tempered springs - Technical delivery conditions
    ISO 642:1999 Steel — Hardenability test by end quenching (Jominy test)
    EN 10221:1995 Surface quality classes for hot-rolled bars and rods - Technical delivery conditions
    EN 10263-3:2017 Steel rod, bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels
    EN ISO 377:2017 Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2017)
    EN ISO 643:2012 Steels - Micrographic determination of the apparent grain size (ISO 643:2012)
    ISO 6508-1:2016 Metallic materials — Rockwell hardness test — Part 1: Test method
    EN 10277-4:2008 Bright steel products - Technical delivery conditions - Part 4: Case hardening steels
    EN 10087:1998 Free-cutting steels - Technical delivery conditions for semi-finished products, hot-rolled bars and rods
    EN 10308:2001 Non destructive testing - Ultrasonic testing of steel bars
    EN 10163-2:2004 Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections - Part 2: Plate and wide flats
    ISO 683-11:2012 Heat-treatable steels, alloy steels and free-cutting steels Part 11: Case-hardening steels
    EN 10021:2006 General technical delivery conditions for steel products
    EN ISO 642:1999 Steel - Hardenability test by end quenching (Jominy test) (ISO 642:1999)
    EN 10277-1:2008 Bright steel products - Technical delivery conditions - Part 1: General
    EN 10204:2004 Metallic products - Types of inspection documents
    ISO 643:2012 Steels Micrographic determination of the apparent grain size
    EN 10083-1:2006 Steels for quenching and tempering - Part 1: General technical delivery conditions
    EN 10027-1:2016 Designation systems for steels - Part 1: Steel names
    EN 10083-2:2006 Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy steels
    EN 10020:2000 Definition and classification of grades of steel
    EN 10160:1999 Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method)
    ISO 377:2017 Steel and steel products — Location and preparation of samples and test pieces for mechanical testing
    EN 10083-3:2006/AC:2008 STEELS FOR QUENCHING AND TEMPERING - PART 3: TECHNICAL DELIVERY CONDITIONS FOR ALLOY STEELS
    ISO 14284:1996 Steel and iron — Sampling and preparation of samples for the determination of chemical composition
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