• BS EN 14324:2004

    Current The latest, up-to-date edition.

    Brazing. Guidance on the application of brazed joints

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  27-09-2004

    Publisher:  British Standards Institution

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Joint design
      4.1 Principle
      4.2 Types of joint
      4.3 Assembly gap and brazing gap
          4.3.1 General
          4.3.2 Influence of brazing filler materials
          4.3.3 Influence of parent material
          4.3.4 Influence of dissimilar parent materials
          4.3.5 Influence of surface finish
          4.3.6 Influence of atmospheres or fluxes
      4.4 Surface preparation
      4.5 Stress distribution in service
      4.6 Application of filler material
      4.7 Assembly
      4.8 Good brazing design
    5 Materials
      5.1 Parent materials
          5.1.1 Basic considerations
          5.1.2 Special considerations
      5.2 Filler materials
          5.2.1 General
          5.2.2 Forms available
          5.2.3 Applications
      5.3 Fluxes
          5.3.1 General
          5.3.2 Flux removal
      5.4 Atmospheres
          5.4.1 Protective
          5.4.2 Vacuum atmospheres for brazing
      5.5 Safety
    6 Methods of brazing
    7 Heat treatment
    8 Inspection
    Annex A (informative) Examples of brazed assemblies
    Annex B (informative) Typical examples of joint design
    Annex C (informative) Filler materials most commonly used
                          for combinations of parent materials
    Annex D (informative) Suitability of brazing filler material
                          classes for the commoner brazing methods
    Annex E (informative) Methods of brazing
            E.1 Flame brazing
                E.1.1 General
                E.1.2 Hand torch brazing
                E.1.3 Mechanized flame brazing
            E.2 Induction brazing
                E.2.1 Process
                E.2.2 Application
                E.2.3 Advantages/limitations
                E.2.4 Size limitations
                E.2.5 Safety
            E.3 Resistance brazing
                E.3.1 Process
                E.3.2 Application
                E.3.3 Advantages/limitations
                E.3.4 Size limitations
                E.3.5 Safety
            E.4 Furnace brazing
                E.4.1 Process variants
                E.4.2 Protective atmosphere brazing
                E.4.3 Vacuum brazing
            E.5 Immersion brazing
                E.5.1 General
                E.5.2 Flux bath brazing
                E.5.3 Dip bath brazing
                E.5.4 Salt bath brazing
            E.6 Special methods
                E.6.1 Laser beam brazing
                E.6.2 Brazing/braze welding with an arc
                E.6.3 Other methods
    Bibliography

    Abstract - (Show below) - (Hide below)

    Gives guidance on the application of brazing and the manufacture of brazed joints.

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

    Committee WEE/19
    Development Note Supersedes BS 1723-1(1986) and BS 1723-2(1986). (09/2004) Supersedes 02/700240 DC (10/2004) Reviewed and confirmed by BSI, July 2009. (06/2009)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    13/30199128 DC : 0 BS 6891 - SPECIFICATION FOR THE INSTALLATION AND MAINTENANCE OF LOW PRESSURE GAS INSTALLATION PIPEWORK OF UP TO 35 MM (R1[1/4]) IN PREMISES
    DEFSTAN 02-743(PT5)/2(2012) : 2012 PIPE MANIPULATION - PART 5: BRAZING
    DEFSTAN 07-85(PT1)/3(2006) : 2006 DESIGN REQUIREMENTS FOR WEAPONS AND ASSOCIATED SYSTEMS - PART 1: MANDATORY DESIGN REQUIREMENTS
    BS PD5500(2015) : 2015 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    BS PD5500(2009) : 2009 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    BS 6891:2015 Specification for the installation and maintenance of low pressure gas installation pipework of up to 35 mm (R1¼) on premises
    BS PD5500(2018) : 2018 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    BS PD5500(2006) : 2006 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    BS 6891(2005) : 2005 INSTALLATION OF LOW PRESSURE GAS PIPEWORK OF UP TO 35 MM (R1[1/4]) IN DOMESTIC PREMISES (2ND FAMILY GAS) - SPECIFICATION
    BS PD5500(2012) : 2012 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    PD 54823:2016 Guidance for the design, commissioning and maintenance of LPG systems in small craft
    BS 10:2009 Specification for flanges and bolting for pipes, valves and fittings
    BS 853-1:1990+A3:2011 Specification for vessels for use in heating systems Calorifiers and storage vessels for central heating and hot water supply
    08/30174939 DC : DRAFT JUNE 2008 BS 10 - SPECIFICATION FOR FLANGES AND BOLTING FOR PIPES, VALVES AND FITTINGS
    15/30281782 DC : 0 PD 5482-3 - GUIDANCE FOR THE DESIGN, COMMISSIONING AND MAINTENANCE OF LPG SYSTEMS IN SMALL CRAFT

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

    EN 730-2:2002 Gas welding equipment - Safety devices - Part 2: Not incorporating a flame (flashback) arrestor
    ISO 5172:2006 Gas welding equipment Blowpipes for gas welding, heating and cutting Specifications and tests
    EN 1045:1997 Brazing - Fluxes for brazing - Classification and technical delivery conditions
    EN 731:1995 Gas welding equipment - Air-aspirated hand blowpipes - Specifications and tests
    EN 12797:2000/A1:2003 BRAZING - DESTRUCTIVE TESTS OF BRAZED JOINTS
    EN ISO 5172:2006/A2:2015 GAS WELDING EQUIPMENT - BLOWPIPES FOR GAS WELDING, HEATING AND CUTTING - SPECIFICATIONS AND TESTS (ISO 5172:2006/AMD 2:2015)
    EN 13133:2000 Brazing - Brazer approval
    EN 1044 : 1999 BRAZING - FILLER METALS
    EN ISO 18279:2003 Brazing - Imperfections in brazed joints (ISO 18279:2003)
    ISO 18279:2003 Brazing — Imperfections in brazed joints
    EN 13134:2000 Brazing - Procedure approval
    EN 730-1:2002 Gas welding equipment - Safety devices - Part 1: Incorporating a flame (flashback) arrestor
    EN 12799:2000/A1:2003 BRAZING - NON-DESTRUCTIVE EXAMINATION OF BRAZED JOINTS
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