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AS 4041-1998 pressure piping

Standard Number:  AS 4041-1998
Title:  pressure piping
Language:  English
Replaced by Standard:  AS 4041-2006 pressure piping

Replacing Standard:  AS 4041-1992 pressure piping

Status:  Withdrawn
Publisher:  Australia Standards(AS)
Price:  
Number of Pages:267  

Preface:   
Description:Specifies minimum requirements for the materials, design, fabrication, testing, inspection, reports and pre-commissioning of piping subject to internal pressure or external pressure or both. Specific requirements are given for piping constructed of carbon, carbon-manganese, low alloy and high alloy steels, ductile and cast iron, as well as copper, aluminium, nickel, titanium and alloys of these materials. General requirements and reference to Standards for non-metallic piping are included. A method for Standard piping design without the need for calculations is given in Appendix T.  
Catalog:Document Contents
AS 4041:1998 PRESSURE PIPING
PREFACE
CONTENTS
SECTION 1 - SCOPE AND GENERAL
1.1 SCOPE
1.2 RESPONSIBILITIES
1.3 CLASSIFICATION OF PIPING
1.4 CLASSIFICATION OF FLUIDS
1.5 SELECTION OF PIPING CLASS
1.5.1 Basic requirements
1.5.2 Mixing classes
1.5.3 Fast-track selection of class of piping
1.6 ALTERNATIVE STANDARDS
1.7 DEFINITIONS
1.7.1 Accessory
1.7.2 Agreed and agreement
1.7.3 Cold spring
1.7.4 Component
1.7.5 Corrosion
1.7.6 Design
1.7.7 Designer
1.7.8 Design strength
1.7.9 Extruded outlet
1.7.10 Fabrication
1.7.11 Fitting
1.7.12 Fluid
1.7.13 Hydrostatic test
1.7.14 Inspection
1.7.15 Inspection body
1.7.16 Installation
1.7.17 May
1.7.18 Mitre bend
1.7.19 Mitre joint
1.7.20 Nominal pressure
1.7.21 Nominal size
1.7.22 Owner
1.7.23 Parties concerned
1.7.24 Pipe
1.7.25 Pipe support
1.7.26 Pressure piping
1.7.27 Pressure, design
1.7.28 Proprietary components
1.7.29 Service conditions
1.7.30 Shall
1.7.31 Should
1.7.32 Socket welded joint
1.7.33 Strength
1.7.34 Temperature
1.7.35 Testing
1.7.36 Thickness
1.7.37 Verification
1.7.38 Weld joint factor
1.7.39 Assemblies
1.7.40 Gas
1.7.41 Liquid
1.8 NOTATION
1.9 NON-SI UNITS
1.10 REFERENCED DOCUMENTS
1.11 REPORTS AND CERTIFICATES
1.11.1 Manufacturer?s data report
1.11.2 Copies
1.12 NOT ALLOCATED
1.13 NOT ALLOCATED
1.14 NON-METALLIC PIPING
1.15 INTERPRETATION OF STANDARDS
1.16 NEW DESIGNS, MATERIALS AND FABRICATION METHODS
1.17 DIMENSIONAL AND MASS TOLERANCES
1.18 ALTERNATIVE DESIGN OF ACCESSORIES
SECTION 2 - MATERIALS AND COMPONENTS
2.1 GENERAL
2.2 QUALIFICATION OF MATERIALS AND COMPONENTS
2.2.1 Materials and components complying with nominated Standards
2.2.2 Materials and components complying with Standards not nominated in this Standard
2.2.3 Alternative product form
2.2.4 Limitations for the application of pipe and steel identified by specification or la...
2.2.5 Components, other than pipe, for which there are no Standards
2.2.6 Reclaimed components complying with a nominated Standard
2.2.7 Material and components not fully identified
2.2.8 Unidentified materials and components
2.2.9 Hydrostatic test
2.2.10 Specially tested materials
2.3 LIMITATIONS ON MATERIALS AND COMPONENTS
2.3.1 General
2.3.2 Ductile iron pipe and fittings
2.4 PROPERTIES OF MATERIALS
2.4.1 General
2.4.2 Mechanical properties
2.4.3 Thermal expansion
2.4.4 Young modulus
2.4.5 Poisson ratio
2.4.6 Weldability
2.5 IDENTIFICATION OF MATERIALS AND COMPONENTS
2.6 LIMITATIONS ON APPLICATION
2.6.1 General
2.6.2 Deterioration of materials and components
2.6.3 Materials for ambient and high temperature service
2.6.4 Fittings
2.6.5 Valves
2.6.6 Flanges
2.6.7 Bolting for flanges
2.6.8 Gaskets
2.6.9 Material for forming and bending
2.6.10 Limit of application of pipe made by the CW (BW) process
2.6.11 Limit of application of AS 1074 pipe
2.7 MATERIALS AND COMPONENTS FOR CORROSIVE SERVICE
2.8 DISSIMILAR MATERIALS
2.9 BACKING RINGS AND FUSIBLE INSERTS
2.9.1 Permanent backing rings
2.9.2 Temporary backing rings
2.9.3 Fusible inserts
2.10 BRAZING MATERIALS
2.11 MATERIALS FOR LOW TEMPERATURE SERVICE
2.11.1 General
2.11.2 Selection of suitable material for low temperature service
2.11.3 Minimum operating temperature
2.11.4 Required material design minimum temperature
2.11.5 Material reference thickness
2.11.6 Impact tests
SECTION 3 - DESIGN
3.1 GENERAL
3.1.1 Basis for determining size of pipe
3.1.2 Design against failure
3.1.3 Other design methods
3.2 DESIGN PRESSURE
3.3 DESIGN TEMPERATURE
3.3.1 General
3.3.2 Uninsulated piping
3.3.3 Externally insulated piping
3.3.4 Internally insulated piping
3.3.5 Heated piping
3.4 DESIGN LIFE
3.5 STATIC AND DYNAMIC LOADS AND FORCES
3.6 RISK ANALYSIS
3.6.1 Hazard and operability study (HAZOP)
3.6.2 Other methods
3.7 THERMAL EFFECTS
3.8 EFFECTS OF MOVEMENT AT SUPPORTS, ANCHORS AND TERMINALS
3.9 DESIGN PRESSURE AND TEMPERATURE FOR PIPING ASSOCIATED WITH STEAM BOILERS
3.9.1 Design pressure for main steam piping
3.9.2 Design pressure for reheat piping
3.9.3 Design pressure for piping for reduced pressure systems
3.9.4 Design temperature for steam piping
3.9.5 Design pressure and temperature for boiler feed water piping
3.9.6 Design pressure for blowdown and drain systems
3.9.7 Design temperature for blowdown and drain systems
3.9.8 Design conditions for safety valve discharge piping
3.9.9 Design temperature for structural attachments
3.10 DESIGN CRITERIA
3.10.1 Pressure-temperature design criteria
3.10.2 Normal operating conditions
3.10.3 Variations in normal operating conditions
3.11 DESIGN STRENGTH
3.11.1 Design strength for pressure-retaining components
3.11.2 Compressive stress
3.11.3 Shear stress
3.11.4 Bearing stress
3.11.5 Sustained longitudinal stress
3.11.6 Longitudinal stress due to sustained and occasional loads
3.11.7 Design stress range
3.11.8 Creep-fatigue interaction
3.12 DESIGN FACTORS
3.12.1 General
3.12.2 Weld joint factor
3.12.3 Class design factor
3.12.4 Casting quality factor
3.13 ALLOWANCES
3.13.1 General
3.13.2 Manufacturing tolerances
3.13.3 Corrosion or erosion
3.13.4 Threading, grooving, or machining
3.13.5 Mechanical strength
3.14 WALL THICKNESS OF STRAIGHT PIPE
3.14.1 Required wall thickness
3.14.2 Nominal wall thickness
3.14.3 Pressure design wall thickness for pipe, under internal pressure
3.14.4 Wall thickness of pipe under external pressure
3.14.5 Pressure design wall thickness of cast pipe
3.15 PIPE BENDS
3.15.1 General
3.15.2 Continuous bends
3.15.3 Wrinkle (or crease) bends
3.15.4 Mitre bends
3.15.5 Cut-and-shut (gussetted) bends
3.16 REDUCERS
3.17 BIFURCATIONS, SPECIAL FITTINGS AND CONNECTIONS
3.18 EXPANSION FITTINGS AND FLEXIBLE HOSE ASSEMBLIES
3.18.1 Expansion fittings
3.18.2 Flexible hose assemblies
3.19 BRANCH CONNECTIONS AND OPENINGS
3.19.1 Application
3.19.2 Types of branch connections
3.19.3 Shape of opening
3.19.4 Size of branches and openings
3.19.5 Location of unreinforced branch connections
3.19.6 Material for branches and reinforcement
3.19.7 Branches or openings not requiring additional reinforcement
3.19.8 Branch connections or openings requiring reinforcement
3.19.9 Extruded outlets
3.20 WELDED BRANCH CONNECTIONS
3.20.1 General
3.20.2 Fittings
3.20.3 Branch pipes
3.21 DESIGN OF CLOSURES FOR PIPE ENDS AND BRANCHES
3.21.1 General
3.21.2 Openings in closures
3.21.3 Threaded openings
3.22 DESIGN OF OTHER PRESSURE-RETAINING COMPONENTS
3.23 ATTACHMENTS
3.23.1 General
3.23.2 Welding of attachments
3.23.3 Thickness of attachments
3.23.4 Intensity of radial loading
3.24 PIPING JOINTS
3.24.1 General
3.24.2 Welded joints
3.24.3 Threaded joints
3.24.4 Flanged joints
3.24.5 Flared, flareless and compression joints
3.24.6 Caulked joints
3.24.7 Soldered joints
3.24.8 Brazed joints.
3.24.9 Expansion joints
3.24.10 Proprietary and special joints
3.25 DESIGN REQUIREMENTS PERTAINING TO SPECIFIC PIPING
3.25.1 Drainage systems of steam piping
3.25.2 Drain vessels and vents for boiler and high pressure steam piping
3.25.3 Instrument, control and sampling piping
3.25.4 Pressure relief valve discharge piping
3.25.5 Piping located below ground level
3.26 NOT ALLOCATED
3.27 FLEXIBILITY, STRESS ANALYSIS AND SUPPORT DESIGN
3.27.1 General
3.27.2 Flexibility
3.27.3 Stress analysis
3.27.4 Data for stress analysis
3.27.5 Stress limitations
3.27.6 Reactions
3.28 PIPE SUPPORTS
3.28.1 General
3.28.2 Pipe support spacing
3.28.3 Fixtures
3.28.4 Support attachments
3.28.5 Load-supporting structure
3.29 INFORMATION TO BE SUPPLIED
3.30 INFORMATION TO BE SUPPLIED BY THE OWNER
SECTION 4 - FABRICATION AND INSTALLATION
4.1 SCOPE
4.2 FABRICATION
4.3 INSTALLATION
4.3.1 General
4.3.2 Protection
4.3.3 Cleaning
4.3.4 Deflection
4.3.5 Cold-spring
4.3.6 Protection of support threads
4.3.7 Support units
4.4 THERMAL INSULATION
4.5 IDENTIFICATION
SECTION 5 - WELDING AND ALLIED JOINING PROCESSES
SECTION 6 - EXAMINATION AND TESTING
6.1 SCOPE
6.2 RESPONSIBILITY
6.3 QUALIFICATION OF WELDING PROCEDURES AND WELDERS
6.4 NON-DESTRUCTIVE EXAMINATION
6.5 ALTERNATIVES TO NON-DESTRUCTIVE TESTING
6.5.1 Alternative to radiographic or ultrasonic examination
6.5.2 Alternative to spot non-destructive testing by use of destructive tests
6.5.3 Alternative to radiographic or ultrasonic examination by use of in-process examinat...
6.6 PRESSURE TESTS
6.6.1 General
6.6.2 Types of pressure tests
6.7 HYDROSTATIC TEST
6.7.1 Application
6.7.2 Test pressure
6.7.3 Hold period
6.8 ALTERNATIVE TO HYDROSTATIC TEST
6.8.1 Alternative to hydrostatic test by use of pneumatic testing
6.8.2 Alterative to hydrostatic test by use of initial service leak test
6.8.3 Alternative to hydrostatic test by use of increased non-destructive examination and...
6.8.4 Proof hydrostatic test
6.8A INITIAL SERVICE LEAK TEST
6.9 TESTING PRESSURE-LIMITING DEVICES, RELIEF VALVES, PRESSURE REGULATORS, AND CONTROL EQ...
6.10 REPORT
SECTION 7 - PROTECTIVE SYSTEMS AND DEVICES
7.1 GENERAL
7.1.1 Basic requirement
7.1.2 Protective systems
7.1.3 Design and construction
7.2 PRESSURE AND TEMPERATURE CONTROL SYSTEMS
7.3 PRESSURE RELIEF SYSTEMS
7.3.1 General
7.3.2 Stop valves in pressure relief systems
7.4 CORROSION PROTECTION
7.5 FIRE PROTECTION
7.6 EARTHING
7.7 PROTECTION FROM IMPACT
7.8 LIGHTNING PROTECTION
7.9 HUMAN CONTACT PROTECTION
7.10 NOISE CONTROL
7.11 ISOLATION PROTECTION (FOR INTERCONNECTED PIPING)
7.12 NOT ALLOCATED
7.13 PROTECTION AGAINST INTERFERENCE
SECTION 8 - QUALITY ASSURANCE AND INSPECTION
8.1 GENERAL
8.1.1 Scope
8.1.2 Basic requirements
8.1.3 Inspectors
8.2 REVIEW OF DESIGN
8.2.1 Design verification
8.2.2 Approval of design
8.3 MATERIAL AND COMPONENT INSPECTION
8.3.1 Materials and components
8.3.2 Marking
8.4 GENERAL INSPECTION OF FABRICATION
SECTION 9 - COMMISSIONING AND OPERATION
9.1 COMMISSIONING
9.1.1 General
9.1.2 Commissioning personnel
9.1.3 Alarm and shutdown systems
9.1.4 Pressure-limiting devices, relief valves, pressure regulators and control equipment
9.1.5 Identification
9.1.6 Support settings
9.2 OPERATION
9.2.1 General
APPENDIX A - LIST OF REFERENCED DOCUMENTS
APPENDIX B - NOMINAL SIZES AND OUTSIDE DIAMETERS OF PIPE
APPENDIX C - NOT ALLOCATED
APPENDIX D - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTHS
TABLE D1 - INDEX OF PIPE SPECIFICATIONS-STEEL
TABLE D2 - MATERIAL PROPERTIES, DESIGN PARAMETERS-CARBON, CARBON-MANGANESE STEEL, PIPE AN...
TABLE D3 - PIPE SPECIFICATIONS EQUIVALENT TO Re 200
TABLE D4 - PIPE SPECIFICATIONS EQUIVALENT TO Re 240
TABLE D5 - MATERIAL, PROPERTIES AND DESIGN PARAMETERS OF HIGH ALLOY STEEL PIPE
TABLE D6 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-AUSTENTIC STEEL PI...
TABLE D7 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-COPPER AND COPPER ...
TABLE D8 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-ALUMINIUM AND ALUM...
TABLE D9 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-NICKEL AND NICKEL ...
TABLE D10 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-TITANIUM AND TITA...
TABLE D11 - MATERIAL PROPERTIES, DESIGN PARAMETERS AND TENSILE STRENGTH-IRON CASTINGS
APPENDIX E - LINEAR EXPANSION
APPENDIX F - YOUNG MODULUS
APPENDIX G - DESIGN TENSILE STRENGTH FOR FLANGE BOLTING
APPENDIX H - LODMAT ISOTHERMS
APPENDIX I - DETERMINATION OF DESIGN STRENGTH
I1 GENERAL
I2 DESIGN STRENGTH FOR PIPING CLASSES 1, 2A and 3
I2.1 General
I2.2 Calculation of design strength
I2.3 Notation
I2.4 Design life
I3 DESIGN STRENGTH FOR PIPING CLASS 2P
APPENDIX J - DESIGN PRESSURE FOR SAFETY VALVE DISCHARGE PIPING
J1 GENERAL
J2 ABSOLUTE PRESSURE
J3 FRICTION LENGTH
J4 EXAMPLE
J5 PIPE JUNCTIONS
J6 MASS FLOW DISCHARGE OF EXHAUST PIPE
APPENDIX K - FORGED BRANCH FITTINGS
APPENDIX L - REINFORCEMENT OF A BRANCH AND AN OPENING
L1 GENERAL
L2 BRANCH CONNECTIONS TO MITRED GUSSETED BENDS
L3 REINFORCEMENT AND BRANCH THICKNESS
L4 BRANCH SYSTEMS
L5 REINFORCEMENT IN ACCORDANCE WITH PARAGRAPH L3( a)
L5.1 Branch not affected by any other branch
L5.2 A branch affected by one or more other branches
L6 REINFORCEMENT IN ACCORDANCE WITH PARAGRAPH L3( b) (branch reinforcement when the thick...
L6.1 Branch not affected by any other branch
L6.2 Branch affected by one or more other branches
L7 LENGTH OF BRANCH REINFORCEMENT
L8 MAINS (See Figure L2)
APPENDIX M - TYPICAL BRANCH WELDS
APPENDIX N - WELD DETAILS
APPENDIX O - FILLET-WELDED SOCKETS
APPENDIX P - SLEEVE JOINT
APPENDIX Q - NOTES ON PIPING STRESS ANALYSIS
Q1 METHODS OF FLEXIBILITY ANALYSIS-SIMPLIFIED ANALYSIS
Q2 COLD-SPRING
Q3 STRESSES AND REACTIONS IN A PIPING SYSTEM
Q3.1 Thermal and sustained stresses
Q3.2 Resultant stress range and stress difference
Q3.3 End reactions
Q4 PLASTIC STRAINS
APPENDIX R - METHOD OF ASSESSING FLEXIBILITY
R1 GENERAL
R2 CALCULATION OF STRESS LEVELS
R2.1 General
R2.2 Maximum stress range
R2.3 Maximum hot stress
R2.4 Sustained stress
R3 ANALYSIS CALCULATION
R4 STRESS EVALUATION ON STRAIGHT PIPE AND A BEND
R4.1 Combined stress
R4.2 Transverse stress
R4.3 Longitudinal stress
R4.4 Torsional stress
R5 STRESS EVALUATION OF A MITRE BEND
R5.1 Combined stress
R5.2 Transverse stress
R5.3 Longitudinal stress
R5.4 Torsional stress
R6 STRESS EVALUATION AT A BRANCH CONNECTION
R6.1 Combined stress
R6.2 Transverse pressure stress
R6.3 Non-directional bending stress
R6.4 Torsional stress
R7 ALLOWABLE STRESS CRITERIA
R8 REQUIREMENT FOR FLEXIBILITY ANALYSIS
R9 BASIS OF FLEXIBILITY ANALYSIS
R10 VALUES OF PROOF STRESS, RUPTURE STRESS, AND DESIGN STRENGTH
APPENDIX S - EXAMPLE OF STRESS CALCULATION IN A SECTIONALIZED PIPING SYSTEM
S1 GENERAL
S2 IDENTIFICATION OF PLANES
S3 MODES OF OPERATION
S4 BENDING AND TORSIONAL MOMENTS
S5 DETERMINATION OF MOMENTS
S6 LIMITS
S6.1 General
S6.2 Stress range limitation
S6.3 Hot stress limitation
S6.4 Calculation of combined stress levels at point B
S6.5 Conclusion
APPENDIX T - STANDARD PIPING DESIGN
APPENDIX U - HYDROSTATIC TEST PRESSURE
U1 GENERAL
U1.1 Scope
U1.2 Requirements for hydrostatic test pressure
U2 FERRITIC, AUSTENITIC AND FERRITIC-AUSTENITIC STEEL PIPING, CLASSES 1, 2A AND 3
U2.1 Steam and water piping associated with steam boilers
U2.2 For all other piping services
U3 FERRITIC STEEL PIPING CLASS 2P
U4 NON-FERROUS METALS
U5 PIPING AND PRESSURE VESSELS TESTED TOGETHER
U6 PIPING SUBJECT TO EXTERNAL PRESSURE
U7 JACKETED PIPING
U8 EXAMPLES
INDEX
  
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