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  • BS 4677(1984) : 1984

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    SPECIFICATION FOR ARC WELDING OF AUSTENITIC STAINLESS STEEL PIPEWORK FOR CARRYING FLUIDS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-1984

    Publisher:  British Standards Institution

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

    Section one. General
    1 Scope
    2 Information and requirements to be agreed and to be
        documented
    3 Parent metal
    4 Condition of pipes before welding
    5 Weld metal
    6 Gases for shielding and purging
    7 Equipment
    8 Welding processes
    9 Backing rings
    10 Joint preparation
    11 Proximity of welds
    12 Fusion faces
    13 Assembly for welding
    14 Purging
    15 Damage to parent metal
    16 Inter-run cleaning
    17 Cold pull
    18 Pre-heating
    19 Continuity of welding
    20 Heat treatment after welding
    21 Temperature measurement
    22 Transition joints between dissimilar metals
    Section two. Butt joints
    23 General
    24 All types of butt joint
    25 Segmental bends
    Section three. Branches and small bore connections
    26 General
    27 Branches
    28 Small bore connections
    Section four. Socket-welding fittings
    29 General
    30 Socket joint details
    Section five. Reinforcement of welded branch
                    connections (compensation)
    31 General
    32 Preparation and assembly
    33 Welding procedure
    Section six. Structural attachments
    34 General
    35 Welding procedure
    Section seven. Flanges
    36 General
    37 Welding neck flanges
    38 Plate flanges
    Section eight. Inspection
    39 Requirements for visual examination of completed
        welds
    40 Non-destructive testing
    41 Fault limitations
    Section nine. Rectification of faulty welds
    42 Removal of faults
    43 Preparation for re-welding
    44 Re-welding
    Section ten. Welding procedure approval
    45 General
    46 Attachments to thin pipes and branch welds
    Section eleven. Welder approval
    47 General
    48 Attachments to thin pipes
    Appendices
    A Grades of steel in British Standards
    B Guidance on suitable types of weld metal
    C Typical joint preparations
    D Guidance on welding transition joints between
        ferritic steel and austenitic stainless steel
    E Image quality indicator sensitivities
    Tables
    1 Parent metals
    2 Methods of making root runs in butt joints
    3 Bore difference and alignment
    4 Penetration of root bead
    5 Defect limits
    6 Grades of steel in British Standards
    7 Guidance on types of weld metal for welding similar
        austenitic stainless steel
    8 Guidance on types of weld metal for welding
        dissimilar steels
    9 Types of weld metal given as guidance in tables 7
        and 8 and British Standard electrode and filler
        metal designations where they exist
    10 Image quality indicator sensitivities (types I and II)
    Figures
    1 Permissible types of permanent backing ring
    2 Types of backing ring not permissible
    3 Permissible types of temporary backing ring
    4 Example of proximity of attachment weld
    5 Segmental bends
    6 Socket joint details
    7 Welding neck flange
    8 Typical butt joint preparations for use with metal-
        arc welding, with backing ring for single or double
        root run
    9 Typical butt joint preparations for use with metal-
        arc welding, without backing ring
    10 Typical butt joint preparations for use with manual
        TIG welding, with or without filler wire
    11 Typical butt joint preparation for use with TIG
        welding for the root run, with or without filler
        wire or with fusible insert
    12 Typical preparation and assembly of set-on right
        angle branches without backing
    13 Typical preparation and assembly of set-on sloping
        branches without backing
    14 Typical preparation and assembly of set-in branches
        (access from inside pipe)
    15 Typical preparation and assembly of set-on right
        angle branches with temporary backing
    16 Typical preparation and assembly of set-on sloping
        branches with temporary backing
    17 Typical set-on connection
    18 Typical small bore connections
    19 Typical 'face and back' welded-on flanges
    20 Typical 'bore and back' welded-on flange
    21 Typical 'bore and back' welded-on flange for
        positional welding
    22 Typical 'face and fillet' welded-on flange
    23 Typical 'bore and fillet' welded-on flange
    24 Typical 'bore and fillet' welded-on flange for
        positional welding
    25 Typical 'slip on' welded-on flange
    26 Typical 'slip on' hubbed welded-on flange
    27 Typical 'face and fillet' hubbed welded-on flange

    Abstract - (Show below) - (Hide below)

    Describes requirements for shop and site arc welding, using manual, semi-automatic, automatic and mechanized welding processes of joints in austenitic stainless steel pipework carrying fluids. Covers information and requirements to be agreed and to be documented, parent metal, condition of pipes before welding, weld metal, gases for shielding and purging, equipment, welding processes, backing rings, joint preparation, proximity of welds, fusion faces, assembly for welding, purging, damage to parent metal, inter-run cleaning, cold pull, pre-heating, continuity of welding, heat treatment after welding, temperature measurement and transition joints between dissimilar metals. There are several tables of figures.

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

    Committee WEE/21
    Development Note Supersedes BS 4677(1971), 82/77293 DC & 95/706853 DC. (07/2005) Reviewed and confirmed by BSI, December 2011. (11/2011)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    BS 5155(1984) : 1984 SPECIFICATION FOR BUTTERFLY VALVES
    BS 806(1993) : 1993 SPECIFICATION FOR DESIGN AND CONSTRUCTION OF FERROUS PIPING INSTALLATIONS FOR AND IN CONNECTION WITH LAND BOILERS
    BS 3351(1971) : 1971 SPECIFICATION FOR PIPING SYSTEMS FOR PETROLEUM REFINERIES AND PETROCHEMICAL PLANTS
    BS 5353(1989) : 1989 SPECIFICATION FOR STEEL PLUG VALVES
    BS 5306-4(2001) : 2001 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - PART 4: SPECIFICATION FOR CARBON DIOXIDE SYSTEMS
    BS 2633(1987) : 1987 SPECIFICATION FOR CLASS 1 ARC WELDING OF FERRITIC STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 1821(1982) : 1982 SPECIFICATION FOR CLASS 1 OXY-ACETYLENE WELDING OF FERRITIC STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 5160(1989) : 1989 SPECIFICATION FOR STEEL GLOBE VALVES, GLOBE STOP AND CHECK VALVES AND LIFT TYPE CHECK VALVES
    BS 6258(1988) : 1988 SPECIFICATION FOR HOLLOW STEEL BARS FOR MACHINING
    BS 6990(1989) : 1989 CODE OF PRACTICE FOR WELDING ON STEEL PIPES CONTAINING PROCESS FLUIDS OR THEIR RESIDUALS
    BS 4089(1989) : 1989 SPECIFICATION FOR HOSES AND HOSE ASSEMBLIES FOR LIQUEFIED PETROLEUM GAS
    11/30244843 DC : 0 BS 5306-4:2001+A1 - FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - PART 4: SPECIFICATION FOR CARBON DIOXIDE SYSTEMS
    BS 2971(1991) : 1991 SPECIFICATION FOR CLASS 2 ARC WELDING OF CARBON STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 5306-7(1988) : 1988 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - SPECIFICATION FOR POWDER SYSTEMS
    BS 4204(1989) : 1989 SPECIFICATION FOR FLASH WELDING OF STEEL TUBES FOR PRESSURE APPLICATIONS
    BS 8010-3(1993) : 1993 CODE OF PRACTICE FOR PIPELINES - PIPELINES SUBSEA: DESIGN, CONSTRUCTION AND INSTALLATION
    BS 5306-5.1(1992) : 1992 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - HALON SYSTEMS - SPECIFICATION FOR HALON 1301 TOTAL FLOODING SYSTEMS
    BS 5306-5.2(1984) : 1984 FIRE EXTINGUISHING INSTALLATIONS & EQUIPMENT ON PREMISES - HALON SYSTEMS - HALON 1211 TOTAL FLOODING SYSTEMS
    BS 5306-4:2001+A1:2012 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - PART 4: SPECIFICATION FOR CARBON DIOXIDE SYSTEMS

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

    BS 2926(1984) : 1984 SPECIFICATION FOR CHROMIUM AND CHROMIUM NICKEL STEEL ELECTRODES FOR MANUAL METAL ARC WELDING
    BS 2971(1991) : 1991 SPECIFICATION FOR CLASS 2 ARC WELDING OF CARBON STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 2910(1986) : 1986 METHODS FOR RADIOGRAPHIC EXAMINATION OF FUSION WELDED CIRCUMFERENTIAL BUTT JOINTS IN STEEL PIPES
    BS 3971(1980) : 1980 SPECIFICATION FOR IMAGE QUALITY INDICATORS FOR INDUSTRIAL RADIOGRAPHY (INCLUDING GUIDANCE ON THEIR USE)
    BS EN 287-1 : 2011 QUALIFICATION TEST OF WELDERS - FUSION WELDING - PART 1: STEELS
    BS 2901-2(1983) : LATEST SPECIFICATION FOR FILLER RODS AND WIRES FOR GAS-SHIELDED ARC WELDING - AUSTENITIC STAINLESS STEELS
    BS 1113(1999) : 1999 SPECIFICATION FOR DESIGN AND MANUFACTURE OF WATER-TUBE STEAM GENERATING PLANT (INCLUDING SUPERHEATERS, REHEATERS AND STEEL TUBE ECONOMIZERS)
    BS EN 288-2 : 1992 SPECIFICATION AND APPROVAL OF WELDING PROCEDURES FOR METALLIC MATERIALS - PART 2: WELDING PROCEDURE SPECIFICATION FOR ARC WELDING
    BS 1821(1982) : 1982 SPECIFICATION FOR CLASS 1 OXY-ACETYLENE WELDING OF FERRITIC STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 3605-1(1991) : 1991 AUSTENITIC STAINLESS STEEL PIPES AND TUBES FOR PRESSURE PURPOSES - SPECIFICATION FOR SEAMLESS TUBES
    BS 638(1966) : AMD 4717 SPECIFICATION FOR ARC WELDING PLANT, EQUIPMENT AND ACCESSORIES
    BS 2633(1987) : 1987 SPECIFICATION FOR CLASS 1 ARC WELDING OF FERRITIC STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 3059-2(1978) : AMD 4787 SPECIFICATION FOR STEEL BOILER AND SUPERHEATER TUBES - CARBON, ALLOY AND AUSTENITIC STAINLESS STEEL TUBES WITH SPECIFIED ELEVATED TEMPERATURE PROPERTIES
    BS 1560-3.1(1989) : 1989 CIRCULAR FLANGES FOR PIPES, VALVES & FITTINGS (CLASS DESIGNATED) - STEEL, CAST IRON AND COPPER ALLOY FLANGES - SPECIFICATION FOR STEEL FLANGES
    BS 2901-5(1983) : AMD 5753 SPECIFICATION FOR FILLER RODS AND WIRES FOR GAS-SHIELDED ARC WELDING - NICKEL AND NICKEL ALLOYS
    BS 2640(1982) : 1982 SPECIFICATION FOR CLASS 2 OXY-ACETYLENE WELDING OF CARBON STEEL PIPEWORK FOR CARRYING FLUIDS
    BS 4204(1989) : 1989 SPECIFICATION FOR FLASH WELDING OF STEEL TUBES FOR PRESSURE APPLICATIONS
    BS EN 349 : 1993 SAFETY OF MACHINERY - MINIMUM GAPS TO AVOID CRUSHING OF PARTS OF THE HUMAN BODY
    BS 4871-1(1982) : 1982 SPECIFICATION FOR APPROVAL TESTING OF WELDERS WORKING TO APPROVED WELDING PROCEDURES - FUSION WELDING OF STEEL
    BS 4870-1(1981) : 1981 SPECIFICATION FOR APPROVAL TESTING OF WELDING PROCEDURES - FUSION WELDING OF STEEL
    BS EN 288-3 : 1992 SPECIFICATION AND APPROVAL OF WELDING PROCEDURES FOR METALLIC MATERIALS - PART 3: WELDING PROCEDURE TESTS FOR THE ARC WELDING OF STEELS
    BS 1640-4(1968) : 1968 SPECIFICATION FOR STEEL BUTT WELDING PIPE FITTINGS FOR THE PETROLEUM INDUSTRY - WROUGHT AND CAST AUSTENITIC CHROMIUM NICKEL STEEL FITTINGS - METRIC UNITS
    BS 3605-2(1992) : 1992 AUSTENITIC STAINLESS STEEL PIPES AND TUBES FOR PRESSURE PURPOSES - SPECIFICATION FOR LONGITUDINALLY WELDED TUBES
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