ASTM F722-82(2014)

Standard Specification for Welded Joints for Shipboard Piping Systems

ABSTRACT
This specification covers typical details of welded joints commonly used in shipboard piping systems. These joints and other joints may be used provided the welding procedures used have been qualified in accordance with the applicable regulatory rules and regulations. The maximum butt weld reinforcement of differnet nominal wall thicknesses of pipe or tube shall be discussed.
SCOPE
1.1 This specification covers typical details of welded joints commonly used in shipboard piping systems. These joints and other joints may be used provided the welding procedures used have been qualified in accordance with the applicable regulatory rules and regulations.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

General Information

• Status: Historical
• Publication Date: 31-Oct-2014
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.11 - Machinery and Piping Systems

Relations

• Replaces: ASTM F722-82(2008) - Standard Specification for Welded Joints for Shipboard Piping Systems
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1298-90(2023) - Standard Specification for Flexible, Expansion-Type Ball Joints for Marine Applications
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1386-92(2021) - Standard Guide for Construction of Sounding Tube and Striker Plate for Tank Sounding
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1155-10(2019) - Standard Practice for Selection and Application of Piping System Materials
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1200-21a - Standard Specification for Fabricated (Welded) Pipe Line Strainers (Above 150 psig and 150°F (1 MPa and 65°C))
• Effective Date: 01-Nov-2014
• Referred By: ASTM F2014-00(2019) - Standard Specification for Non-Reinforced Extruded Tee Connections for Piping Applications
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1201-88(2021) - Standard Specification for Fluid Conditioner Fittings in Piping Applications Above 0 °F
• Effective Date: 01-Nov-2014
• Referred By: ASTM F3386/F3386M-21 - Standard Specification for Detonation Flame Arresters
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1271-90(2023) - Standard Specification for Spill Valves for Use in Marine Tank Liquid Overpressure Protections Applications
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1273-21 - Standard Specification for Tank Vent Flame Arresters
• Effective Date: 01-Nov-2014
• Referred By: ASTM F1172-88(2019) - Standard Specification for Fuel Oil Meters of the Volumetric Positive Displacement Type
• Effective Date: 01-Nov-2014
• Referred By: ASTM F681-82(2022) - Standard Practice for Use of Branch Connections
• Effective Date: 01-Nov-2014

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F722 −82 (Reapproved 2014) An American National Standard
Standard Specification for
1
Welded Joints for Shipboard Piping Systems
ThisstandardisissuedunderthefixeddesignationF722;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Fig. 5 Butt Joint, Compound Bevel V-Grooved, Welded
Both Sides
1.1 This specification covers typical details of welded joints
Fig. 6 Butt Joint, V-Grooved, Miter Type
commonly used in shipboard piping systems. These joints and
Fig. 7 Butt Joint, V-Grooved, Welded with Bevel End-Type
other joints may be used provided the welding procedures used
Backing Ring
have been qualified in accordance with the applicable regula-
tory rules and regulations. Fig. 8 Butt Joint, Compound Bevel V-Grooved, Welded
with Bevel End-Type Backing Ring
1.2 The values stated in inch-pound units are to be regarded
Fig. 9 Butt Joint, V-Grooved Welded with Bevel End
as standard. The values given in parentheses are mathematical
Lug-Type Backing Ring
conversions to SI units that are provided for information only
Fig. 10 Butt Joint, V-Grooved, Welded with Square End-
and are not considered standard.
Type Backing Ring
Fig. 11 Butt Joint, V-Grooved, Welded with Consumable
2. Referenced Documents
Insert Ring
2.1 Federal Standards:
Fig. 12 Butt Joint, Compound Bevel V-Grooved, Welded
Code of Federal Regulations Title 46 Shipping, Parts 30 to
with Consumable Insert Ring
2
40
Fig. 13 Butt Joint, U-Grooved, Welded with Consumable
Code of Federal Regulations Title 46 Shipping, Parts 41 to
2 Insert Ring
69
Fig. 14 Butt Joint, V-Grooved, Welded with Consumable
Code of Federal Regulations Title 46 Shipping, Parts 140 to
2
Insert Ring
149
3
Fig. 15 Butt Joint, Socket Weld to Socket Weld Valve,
Rules for Building and Classing Steel Vessels
Fitting or Flange Welded on Pipe Nipple
3. Application, Service, Limitations, and List of Weld Fig. 16 Butt Joint, Transition between Unequal Inside and
Joint Details Outside Diameter Components
3.1.2 Fillet Welded Joints for Valves, Fittings, and Flanges:
3.1 Details of welded joints, including application, service,
Fig. 17 Fillet Welded Sleeve-Type Pipe Coupling
and limitation notes, are provided in the appropriate figures, as
Fig. 18 Fillet Welded Socket Weld Fitting or Valve
follows:
Fig. 19 Fillet Welded Socket Weld-Flange
3.1.1 Butt-Welded Joints for Pipes, Valves, Fittings, and
Flanges:
Fig. 20 Double Fillet Welded Slip-On Flange (Forged)
Fig. 1 Butt Joint, Square
Fig. 21 Double Fillet Welded Slip-On Flange (Plate Type)
Fig. 2 Butt Joint, V-Grooved
Fig. 22 Fillet Welded Slip-On Flange (Plate Type), Single
Fig. 3 Butt Joint, V-Grooved, Welded Both Sides
Bevel
Fig. 4 Butt Joint, Double V-Grooved, Welded Both Sides
3.1.3 Fabricated Joints:
Fig. 23 Fillet Welded Internal Root Connection
Fig. 24 Fillet Welded External Root Connection
1
This specification is under the jurisdiction of ASTM Committee F25 on Ships
Fig. 25 Fillet Reinforced External Root Connection Single
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Bevel
Machinery and Piping Systems.
Current edition approved Nov. 1, 2014. Published November 2014. Originally
Fig. 26 Fillet Reinforced External Root Connection, Single
approved in 1981. Last previous edition approved in 2008 as F722 – 82 (2008).
Bevel, Welded Both Sides
DOI: 10.1520/F0722-82R14.
2
AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments, Fig. 27 Fillet Reinforced External Root Connection, Single
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
Bevel, Welded with Square End Backing Ring
www.access.gpo.gov.
3
Fig. 28 Fillet Reinforced Internal Root Connection, Single
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
Northchase Dr., Houston, TX 77060, http://www.eagle.org. Bevel, Welded with Square End Backing Ring
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F722−82 (2014)
1
⁄8 in. = 3mm
3
⁄16 in. = 5mm
1
⁄16 in. = 2mm
Application—Class II piping
1
⁄8 in. = 3mm
Systems or Service—For services such as gravity drains (including plumbing),
7
⁄8 in. = 22 mm
vents, and overflows.
Remarks—1. Root of weld need not be ground.
Application—Class I and II piping above 2-in. NPS
FIG. 1 Butt Joint, Square
System or Service—All
Remarks—1. Internal weld shall be made first and ground, chipped, or cleaned
by some other means to assure sound welds.
2. The “L” dimension should be held to a minimum to facilitate welding and
inspection on the inside surface of the pipe
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F722 − 82 (Reapproved 2008) F722 − 82 (Reapproved 2014)An American National Standard
Standard Specification for
1
Welded Joints for Shipboard Piping Systems
This standard is issued under the fixed designation F722; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers typical details of welded joints commonly used in shipboard piping systems. These joints and other
joints may be used provided the welding procedures used have been qualified in accordance with the applicable regulatory rules
and regulations.
1.2 The values stated in inch-pound units are to be regarded as the standard. standard. The values given in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
2.1 Federal Standards:
2
Code of Federal Regulations Title 46,46 Shipping, Parts 30 to 40
2
Code of Federal Regulations Title 46,46 Shipping, Parts 41 to 69
2
Code of Federal Regulations Title 46,46 Shipping, Parts 140 to 149
3
Rules for Building and Classing Steel Vessels
3. Application, Service, Limitations, and List of Weld Joint Details
3.1 Details of welded joints, including application, service, and limitation notes, are provided in the appropriate figures, as
follows:
3.1.1 Butt-Welded Joints for Pipes, Valves, Fittings, and Flanges:
Fig. 1 Butt Joint, Square
Fig. 2 Butt Joint, V-Grooved
Fig. 3 Butt Joint, V-Grooved, Welded Both Sides
Fig. 4 Butt Joint, Double V-Grooved, Welded Both Sides
Fig. 5 Butt Joint, Compound Bevel V-Grooved, Welded Both Sides
Fig. 6 Butt Joint, V-Grooved, Miter Type
Fig. 7 Butt Joint, V-Grooved, Welded with Bevel End-Type Backing Ring
Fig. 8 Butt Joint, Compound Bevel V-Grooved, Welded with Bevel End-Type Backing Ring
Fig. 9 Butt Joint, V-Grooved Welded with Bevel End Lug-Type Backing Ring
Fig. 10 Butt Joint, V-Grooved, Welded with Square End-Type Backing Ring
Fig. 11 Butt Joint, V-Grooved, Welded with Consumable Insert Ring
Fig. 12 Butt Joint, Compound Bevel V-Grooved, Welded with Consumable Insert Ring
Fig. 13 Butt Joint, U-Grooved, Welded with Consumable Insert Ring
Fig. 14 Butt Joint, V-Grooved, Welded with Consumable Insert Ring
Fig. 15 Butt Joint, Socket Weld to Socket Weld Valve, Fitting or Flange Welded on Pipe Nipple
Fig. 16 Butt Joint, Transition between Unequal Inside and Outside Diameter Components
3.1.2 Fillet Welded Joints for Valves, Fittings, and Flanges:
Fig. 17 Fillet Welded Sleeve-Type Pipe Coupling
Fig. 18 Fillet Welded Socket Weld Fitting or Valve
1
This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems.
Current edition approved Nov. 1, 2008Nov. 1, 2014. Published December 2008November 2014. Originally approved in 1981. Last previous edition approved in 20042008
as F722 – 82 (2004).(2008). DOI: 10.1520/F0722-82R08.10.1520/F0722-82R14.
2
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.20401,
http://www.access.gpo.gov.
3
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855 Northchase Dr., Houston, TX 77060.77060, http://www.eagle.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F722 − 82 (2014)
1
⁄8 in. = 3 mm
3
⁄16 in. = 5 mm
Application—Class II piping
Systems or Service—For services such as gravity drains (including plumbing), vents, and overflows.
Remarks—1. Root of weld need not be ground.
FIG. 1 Butt Joint, Square
1
⁄16 in. = 2 mm
1
⁄8 in. = 3 mm
7
⁄8 in. = 22 mm
Application—Class II piping
System or Service—All provided root of weld is visually inspected where possible to ensure complete weld penetration.
Remarks—1. For services such as vents, overflows, and gravity drains (including plumbing) the root of the weld need not be ground.
FIG. 2 Butt Joint, V-Grooved
1
⁄16 in. = 2 mm
1
⁄8 in. = 3 mm
7
⁄8 in. = 22 mm
Application—Class I and II piping above 2-in. NPS
System or Service—All
Remarks—1. Internal weld shall be made first and ground, chipped, or cleaned by some other means to assure sound welds.
2. The “L” dimensi
...