ASTM A865-97
(Specification)Standard Specification for Threaded Couplings, Steel, Black or Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe Joints
Standard Specification for Threaded Couplings, Steel, Black or Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe Joints
SCOPE
1.1 This specification covers black or galvanized welded or seamless threaded steel couplings for use with steel pipe in NPS 1/8 to NPS 20 inclusive (Note 1). Couplings ordered under this specification are intended for the uses outlined in the pipe specifications referencing this specification.
Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.
1.2 The values stated in inch-pound units are to be regarded as standard. The metric values may be approximate.
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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: A 865 – 97 An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Threaded Couplings, Steel, Black or Zinc-Coated
(Galvanized) Welded or Seamless, for Use in Steel Pipe
1
Joints
This standard is issued under the fixed designation A 865; 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 3.1.2 Quantity (pieces),
3.1.3 Name of material (steel pipe-couplings),
1.1 This specification covers black or galvanized welded or
3.1.4 Method of manufacture (welded or seamless),
seamless threaded steel couplings for use with steel pipe in
1 3.1.5 Finish (black or Type I or Type II) galvanized (see
NPS ⁄8 to NPS 20 inclusive (Note 1). Couplings ordered under
8.1),
this specification are intended for the uses outlined in the pipe
3.1.6 Size (NPS designator),
specifications referencing this specification.
3.1.7 Standard or extra-strong classification,
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
3.1.8 Taper tapped-couplings for NPS 2 and smaller, either
been substituted in this standard for such traditional terms as nominal
recessed or non-recessed, if desired, and
diameter, size, and nominal size.
3.1.9 Certification (see 11.3), if required.
1.2 The values stated in inch-pound units are to be regarded
as standard. The metric values may be approximate. 4. Process
4.1 The steel for both welded and seamless couplings shall
2. Referenced Documents
be made by one or more of the following processes: open-
2.1 ASTM Standards:
hearth, electric-furnace, or basic-oxygen.
A 90 Test Method for Weight (Mass) of Coatings on Iron 1
4.2 Welded couplings NPS 3 ⁄2 and under may be butt-
2
and Steel Articles with Zinc or Zinc-Alloy Coatings
welded, unless otherwise specified. Welded couplings over
A 700 Practices for Packaging, Marking, and Loading 1
NPS 3 ⁄2 shall be electric-welded.
3
Methods for Steel Products for Domestic Shipment
4
5. Chemical Composition
B 6 Specification for Zinc
2.2 ANSI Standard:
5.1 The steel shall conform to the chemical composition
5
B 1.20.1 Pipe Threads
requirements as specified in Table 1.
2.3 API Standards:
6. Dimensions
5B Specification for Threading, Gaging, and Thread Inspec-
6
tion of Casing, Tubing, and Line Pipe Threads
6.1 Coupling dimensions are listed in Tables 2-4 and (see
6
5L Specification for Line Pipe
Figs. 1-3).
3. Ordering Information
7. Permissible Variations in Dimensions
3.1 Orders for material under this specification should 1
7.1 Diameter—For couplings NPS 1 ⁄2 and under, the
1
include the following, as required, to describe the desired
outside diameter at any point shall not vary more than ⁄64 in.
material adequately: 1
(0.4 mm) over nor more than ⁄32 in. (0.8 mm) under the
3.1.1 Specification number,
standard specified. For couplings NPS 2 and over, the outside
diameter shall not vary more than 61 % from the standard
1 specified.
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
7.2 Threads—The variation of the threads shall not exceed
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
1
A01.09 on Carbon Steel Tubular Products.
61 ⁄2 turns for straight tapped and 61 turn for taper tapped
Current edition approved Sept. 10, 1997. Published September 1998. Originally
from nominal as determined using gages and the gaging
published as A 865 – 86. Last previous edition A 865 – 96.
2
practices in ANSI B 1.20.1.
Annual Book of ASTM Standards, Vol 01.06.
3
Annual Book of ASTM Standards, Vol 01.05.
4
8. Galvanized Couplings
Annual Book of ASTM Standards, Vol 02.04.
5
Available from American National Standards Institute, 11 West 42nd St., 13th
8.1 Galvanized couplings may be coated with zinc by either
Floor, New York, NY 10036.
6
the hot-dipped (Type 1) or by the electrogalvanizing process.
Available from American Petroleum Institute, 2101 L Street, N.W., Washing-
ton, DC 20037.
1
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A 865
TABLE 1 Chemical Requirements
is being performed, to all parts of the manufacturer’s works
that concern the manufacture of the material ordered. The
Composition, max %
manufacturer shall afford the inspector all reasonable facilities
Phosphorus Sulfur
to satisfy him that the material is being furnished in accordance
All processes 0.14 0.35
with this specification. All tests and inspection shall be made at
the place of manufacture prior to shipment, unless otherwise
specified, and shall be so conducted as not to i
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