ASTM A795/A795M-04

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Designation: A 795/A 795M – 04
Standard Specification for
Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and
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Seamless Steel Pipe for Fire Protection Use
This standard is issued under the fixed designationA 795/A 795M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* health practices and determine the applicability of regulatory
limitations prior to use.
1.1 This specification covers black and hot-dipped galva-
1.4 The values stated in either inch-pound units or SI units
nized welded and seamless steel pipe in NPS 1/2 to NPS 10,
are to be regarded separately as standard. Within the text, the
inclusive [DN 15 to DN 250, inclusive] (Note 1), with wall
SI units are shown in brackets. The values stated in each
thicknesses as given in Table 1 and Table 2. Pipe having other
system are not exact equivalents; therefore, each system shall
wallthicknessesmaybefurnishedprovidedsuchpipecomplies
be used independently of the other. Combining values from the
with all other requirements of this specification and the outside
two systems may result in nonconformance with the standard.
diameter is as given in Table 2. Pipe ordered under this
specification is intended for use in fire protection systems. The
2. Referenced Documents
pipe may be bent, but it is not intended for bending made at
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2.1 ASTM Standards:
ambient temperature wherein the inside diameter of the bend is
A 90 TestMethodforWeight(Mass)ofCoatingonIronand
less than twelve times the outside diameter of the pipe being
Steel Articles with Zinc or Zinc-Alloy Coatings
bent (Note 2).
A 700 Practices for Packaging, Marking, and Loading
NOTE 1—The dimensionless designators NPS (nominal pipe size) and
Methods for Steel Products for Domestic Shipment
DN (nominal diameter) have been substituted in this standard for such
A 751 Test Methods, Practices, and Terminology for
traditional terms as “nominal diameter,” “size,” and “nominal size.”
Chemical Analysis of Steel Products
NOTE 2—Successful bending of pipe is a function of equipment and
A 865 Specification for Threaded Couplings, Steel, Black
technique as well as pipe properties.
or Zinc-Coated (Galvanized) Welded or Seamless, for Use
1.2 This pipe is suitable for joining by the following
in Steel Pipe Joints
methods:
B 6 Specification for Zinc
1.2.1 Light-Weight Fire Protection Pipe—Rolled groove,
E 213 Practice for Ultrasonic Examination of Metal Pipe
welding, and fittings for plain end pipe. See Table 1 for
and Tubing
dimensions.
E 309 Practice for Eddy-Current Examination of Steel Tu-
1.2.2 Standard-Weight Fire Protection Pipe—Cut or rolled
bular Products Using Magnetic Saturation
groove, threading, welding, and fittings for plain end pipe. See
2.2 ASME Standards:
Table 2 for dimensions.
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B1.20.1 Pipe Threads, General Purpose, Inch
1.2.3 For pipe having dimensions other than those of Table
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B36.10 Welded and Seamless Wrought Steel Pipe
1 and Table 2, the joining method must be compatible with the
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B36.19 Stainless Steel Pipe
pipe dimensions. A complete listing of standard light weight
2.3 Federal Standard:
dimensions appears in ASME B36.10 and B36.19.
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Fed. Std. No. 123 Marking for Shipments (CivilAgencies)
1.3 The following safety hazards caveat pertains only to the
2.4 Military Standards:
test method portion, Sections 8, 9, and 10, of this specification:
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MIL-STD-129 Marking for Shipment and Storage
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, the ASTM website.
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Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee Available from ASME International, Three Park Avenue, New York, NY
A01.09 on Carbon Steel Tubular Products. 10016–5990.
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Current edition approved March 1, 2004. Published March 2004. Originally AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
approved in 1982. Last previous edition approved in 2000 as A 795–00. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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