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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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 |
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 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Federal Standard
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)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 Finishing
Military Standard
MIL-STD-129 Marking for Shipment and StorageANSI/ASME Standard
B1.20 Pipe ThreadsICS Code
ICS Number Code 23.040.40 (Metal fittings)
UNSPSC Code
UNSPSC Code 40170000(Pipe piping and pipe fittings)
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DOI: 10.1520/A0074-20
Citation Format
ASTM A74-20, Standard Specification for Cast Iron Soil Pipe and Fittings, ASTM International, West Conshohocken, PA, 2020, www.astm.org
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