ASTM A74-21

Standard Specification for Cast Iron Soil Pipe and Fittings

ABSTRACT
This specification covers cast gray iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. These pipe and fittings are not intended for pressure applications. The cast iron shall be produced by an established commercial method that provides control over chemical and physical properties. Castings shall be sound, true to pattern, and of compact close grain that permits drilling and cutting by ordinary methods and its interior surface shall be reasonably smooth and free from defects. Ferrous scrap, pig iron, and any recycled ferrous material to be used in the melting operation shall be screened for radioactivity. Tension test shall include breaking load, machined diameter, and tensile strength. Chemical test shall conform to the chemical composition requirements prescribed for phosphorous, sulfur, chromium, titanium, aluminum, lead, and carbon equivalent. Dimension requirements for hub, spigot, barrel, grooves, water seal and trap, and threads of the pipe and fittings are detailed. The pipe and fittings shall be uniformly coated with a material suitable for the purpose.
SCOPE
1.1 This specification covers cast iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods, inspection, certification, product markings, dimensions, and dimensional tolerances for extra-heavy and service cast iron soil pipe and fittings. These pipe and fittings are not intended for pressure applications as the selection of the proper size for sanitary drain, waste, vent, and storm drain systems allows free air space for gravity drainage.  
1.2 This specification covers pipe and fittings of the following patterns and, when so designated, shall apply to any other patterns that conform with the dimensions found in Tables 1 and 2 and all other applicable requirements given in this specification.  
1.2.1 Pipe:    
Tables  
Extra heavy, 21/2 ft (0.75 m), 31/2 ft (1.0 m), 5 ft (1.5 m), 10 ft (3.0 m) lengths  
1, 2    
Service, 21/2 ft (0.75 m), 31/2 ft (1.0 m), 5 ft (1.5 m), 10 ft (3.0 m)  
1, 2    
Outside dimensions (for detailing)  
X1.1  
1.2.2 Fittings:    
Tables  
1/4 bends; long 1/4 bends  
3, 4    
1/4 bends, long low-hub  
5    
1/4 bends, low heel; high heel  
6, 7    
1/4 bends, short sweep; long sweep  
8    
1/4 bends, reducing long sweep  
9    
1/5 bends  
10    
1/6 bends  
10    
1/8 bends; long 1/8 bends  
11    
1/16 bends  
11    
Y branches  
12, 13    
Y branches, combination 1/8 bends, single  
14    
Y branches, combination 1/8 bends, double  
14    
Sanitary T branches, single  
15    
Sanitary T branches, double  
15    
Sanitary T branches, cleanout  
16    
Tapped sanitary T branches, single  
17    
Tapped sanitary T branches, double  
17    
T branches, single and double  
18    
Tapped T branches, single  
19    
Tapped T branches, double  
19    
T branches, cleanout  
20    
-45° offset fitting  
21    
Double hubs  
22    
Long double hubs  
22    
Reducers  
23    
Increasers  
24, 25    
P traps  
26, 27    
Deep seal P traps  
28    
Running traps  
29    
Screw plugs (brass)  
30    
Blind plugs  
31    
Iron-body ferrules  
32    
Side inlets  
Fig. 3    
Closet bends  
33    
Tapping bosses  
34    
Reducing 1/4 bend SV  
35    
Combination Y and 1/8 bend  
36    
‘H’ branch fitting  
37  
1.3 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.  
1.4 This international standard was developed in accordance with internationally recognized principles on ...

General Information

• Status: Published
• Publication Date: 28-Feb-2021
• ICS: 23.040.40 - Metal fittings
• Technical Committee: A04 - Iron Castings
• Drafting Committee: A04.12 - Pipes and Tubes

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A74 −21 Endorsed by the
Cast Iron Soil Pipe Institute
American Association State
Highway and Transportation Officials Standard
AASHTO No.: M 263-77
Standard Specification for
1
Cast Iron Soil Pipe and Fittings
This standard is issued under the fixed designationA74; the number immediately following the designation indicates the year of original
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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
Tables
1
⁄4 bends, short sweep; long sweep 8
1.1 This specification covers cast iron soil pipe and fittings
1
⁄4 bends, reducing long sweep 9
1
for use in gravity flow plumbing, drain, waste and vent ⁄5 bends 10
1
⁄6 bends 10
sanitary, and storm water applications. It establishes standards
1 1
⁄8 bends; long ⁄8 bends 11
covering material, manufacture, mechanical and chemical 1
⁄16 bends 11
properties, coating, test methods, inspection, certification, Y branches 12, 13
1
Y branches, combination ⁄8 bends, single 14
product markings, dimensions, and dimensional tolerances for
1
Y branches, combination ⁄8 bends, double 14
extra-heavy and service cast iron soil pipe and fittings. These
Sanitary T branches, single 15
Sanitary T branches, double 15
pipe and fittings are not intended for pressure applications as
Sanitary T branches, cleanout 16
the selection of the proper size for sanitary drain, waste, vent,
Tapped sanitary T branches, single 17
and storm drain systems allows free air space for gravity
Tapped sanitary T branches, double 17
T branches, single and double 18
drainage.
Tapped T branches, single 19
1.2 This specification covers pipe and fittings of the follow- Tapped T branches, double 19
T branches, cleanout 20
ing patterns and, when so designated, shall apply to any other
-45° offset fitting 21
patterns that conform with the dimensions found in Tables 1
Double hubs 22
and 2 and all other applicable requirements given in this
Long double hubs 22
Reducers 23
specification.
Increasers 24, 25
1.2.1 Pipe:
P traps 26, 27
Deep seal P traps 28
Tables
1 1 Running traps 29
Extra heavy, 2 ⁄2 ft (0.75 m), 3 ⁄2 ft (1.0 m), 5 ft 1, 2
Screw plugs (brass) 30
(1.5 m), 10 ft (3.0 m) lengths
1 1
Blind plugs 31
Service, 2 ⁄2 ft (0.75 m), 3 ⁄2 ft (1.0 m), 5 ft (1.5 1, 2
Iron-body ferrules 32
m),10ft(3.0m)
Side inlets Fig. 3
Outside dimensions (for detailing) X1.1
Closet bends 33
1.2.2 Fittings:
Tapping bosses 34
1
Reducing ⁄4 bend SV 35
Tables
1
Combination Y and ⁄8 bend 36
1 1
⁄4 bends; long ⁄4 bends 3, 4
‘H’ branch fitting 37
1
⁄4 bends, long low-hub 5
1
⁄4 bends, low heel; high heel 6, 7
1.3 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
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
and are not considered standard.
Castings and is the direct responsibility of Subcommittee A04.12 on Pipes and
Tubes.
1.4 This international standard was developed in accor-
Current edition approved March 1, 2021. Published March 2021. Originally
dance with internationally recognized principles on standard-
approved in 1917. Last previous edition approved in 2020 as A74 – 20. DOI:
10.1520/A0074-21. ization established in the Decision on Principles for the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A74−21
Development of International Standards, Guides and Recom- for radioactivity with detection devices operated in accordance
mendations issued by the World Trade Organization Technical with the detection manufacturer’s instructions. Written
Barriers to Trade (TBT) Committee. operating, calibration, and maintenance procedures for the
detection equipment shall be provided to the purchaser for
2. Referenced Documents
reviewwhenrequested.Recordsshallbemaintainedbyloadof
2
these tests for a period of seven years.
2.1 ASTM Standards:
4.3.1 Only radiation devices designed specifically for the
A48/A48M Specification for Gray Iron Castings
purpose of screening ferrous material shipments shall be used
A644 Terminology Relating to Iron Castings
for the purpose of conforming to this requirement. Handheld
D1248 Specification for Polyethylene Plastics Extrusion
radiation detectors (Geiger counters) are not appropriate and
Materials for Wire and Cable
shall not be used for the purpose of conforming to this
...

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: A74 − 20 A74 − 21 Endorsed by the
Cast Iron Soil Pipe Institute
American Association State
Highway and Transportation Officials Standard
AASHTO No.: M 263-77
Standard Specification for
1
Cast Iron Soil Pipe and Fittings
This standard is issued under the fixed designation A74; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This specification covers cast iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and
storm water applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test
methods, inspection, certification, product markings, dimensions, and dimensional tolerances for extra-heavy and service cast iron
soil pipe and fittings. These pipe and fittings are not intended for pressure applications as the selection of the proper size for
sanitary drain, waste, vent, and storm drain systems allows free air space for gravity drainage.
1.2 This specification covers pipe and fittings of the following patterns and, when so designated, shall apply to any other patterns
that conform with the dimensions found in Tables 1 and 2 and all other applicable requirements given in this specification.
1.2.1 Pipe:
Tables
1 1
Extra heavy, 2 ⁄2 ft (0.75 m), 3 ⁄2 ft (1.0 m), 5 ft 1, 2
(1.5 m), 10 ft (3.0 m) lengths
1 1
Service, 2 ⁄2 ft (0.75 m), 3 ⁄2 ft (1.0 m), 5 ft (1.5 1, 2
m), 10 ft (3.0 m)
Outside dimensions (for detailing) X1.1
1.2.2 Fittings:
Tables
1 1
⁄4 bends; long ⁄4 bends 3, 4
1
⁄4 bends, long low-hub 5
1
⁄4 bends, low heel; high heel 6, 7
1
⁄4 bends, short sweep; long sweep 8
1
⁄4 bends, reducing long sweep 9
1
⁄5 bends 10
1
⁄6 bends 10
1 1
⁄8 bends; long ⁄8 bends 11
1
⁄16 bends 11
Y branches 12, 13
1
Y branches, combination ⁄8 bends, single 14
1
Y branches, combination ⁄8 bends, double 14
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron Castings and is the direct responsibility of Subcommittee A04.12 on Pipes and Tubes.
Current edition approved Jan. 1, 2020March 1, 2021. Published January 2020March 2021. Originally approved in 1917. Last previous edition approved in 20172020 as
A74 – 17.A74 – 20. DOI: 10.1520/A0074-20.10.1520/A0074-21.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A74 − 21
Tables
Sanitary T branches, single 15
Sanitary T branches, double 15
Sanitary T branches, cleanout 16
Tapped sanitary T branches, single 17
Tapped sanitary T branches, double 17
T branches, single and double 18
Tapped T branches, single 19
Tapped T branches, double 19
T branches, cleanout 20
-45° offset fitting 21
Double hubs 22
Long double hubs 22
Reducers 23
Increasers 24, 25
P traps 26, 27
Deep seal P traps 28
Running traps 29
Screw plugs (brass) 30
Blind plugs 31
Iron-body ferrules 32
Side inlets Fig. 3
Closet bends 33
Tapping bosses 34
1
Reducing ⁄4 bend SV 35
1
Combination Y and ⁄8 bend 36
‘H’ branch fitting 37
1.3 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.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A48/A48M Specification for Gray Iron Castings
A644 Terminology Relating to Iron Castings
D1248 Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable
D3960 Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings
E8/E8M Test Methods for Tension Testing of Metallic Materials
E1645 Practice for Preparation of Dried Paint Samples by Hotplate or Microwave Digestion for Subsequent Lead Analysis
E2349 Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding, and Core Making; Melting
and Pouring; and Cleaning and Finishin
...