ASTM A865-97(2002)
(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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: A 865 – 97 (Reapproved 2002)
Standard Specification for
Threaded Couplings, Steel, Black or Zinc-Coated
(Galvanized) Welded or Seamless, for Use in Steel Pipe
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 3.1.1 Specification number,
3.1.2 Quantity (pieces),
1.1 This specification covers black or galvanized welded or
3.1.3 Name of material (steel pipe-couplings),
seamless threaded steel couplings for use with steel pipe in
1 3.1.4 Method of manufacture (welded or seamless),
NPS ⁄8 to NPS 20 inclusive (Note 1). Couplings ordered under
3.1.5 Finish (black or Type I or Type II) galvanized (see
this specification are intended for the uses outlined in the pipe
8.1),
specifications referencing this specification.
3.1.6 Size (NPS designator),
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
3.1.7 Standard or extra-strong classification,
been substituted in this standard for such traditional terms as nominal
3.1.8 Taper tapped-couplings for NPS 2 and smaller, either
diameter, size, and nominal size.
recessed or non-recessed, if desired, and
1.2 The values stated in inch-pound units are to be regarded
3.1.9 Certification (see 11.3), if required.
as standard. The metric values may be approximate.
4. Process
2. Referenced Documents
4.1 The steel for both welded and seamless couplings shall
2.1 ASTM Standards:
be made by one or more of the following processes: open-
A 90 Test Method for Weight (Mass) of Coatings on Iron
hearth, electric-furnace, or basic-oxygen.
and Steel Articles with Zinc or Zinc-Alloy Coatings 1
4.2 Welded couplings NPS 3 ⁄2 and under may be butt-
A 700 Practices for Packaging, Marking, and Loading
welded, unless otherwise specified. Welded couplings over
Methods for Steel Products for Domestic Shipment 1
NPS 3 ⁄2 shall be electric-welded.
B 6 Specification for Zinc
5. Chemical Composition
2.2 ANSI Standard:
B 1.20.1 Pipe Threads
5.1 The steel shall conform to the chemical composition
2.3 API Standards:
requirements as specified in Table 1.
5B Specification for Threading, Gaging, and Thread Inspec-
6. Dimensions
tion of Casing, Tubing, and Line Pipe Threads
5L Specification for Line Pipe
6.1 Coupling dimensions are listed in Tables 2-4 and (see
Figs. 1-3).
3. Ordering Information
7. Permissible Variations in Dimensions
3.1 Orders for material under this specification should
include the following, as required, to describe the desired 1
7.1 Diameter—For couplings NPS 1 ⁄2 and under, the
material adequately:
outside diameter at any point shall not vary more than ⁄64 in.
(0.4 mm) over nor more than ⁄32 in. (0.8 mm) under the
1 standard specified. For couplings NPS 2 and over, the outside
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
diameter shall not vary more than 61 % from the standard
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products.
specified.
Current edition approved Sept. 10, 1997. Published September 1998. Originally
7.2 Threads—The variation of the threads shall not exceed
published as A 865 – 86. Last previous edition A 865 – 96.
61 ⁄2 turns for straight tapped and 61 turn for taper tapped
Annual Book of ASTM Standards, Vol 01.06.
Annual Book of ASTM Standards, Vol 01.05.
from nominal as determined using gages and the gaging
Annual Book of ASTM Standards, Vol 02.04.
practices in ANSI B 1.20.1.
Available from American National Standards Institute, 25 W. 43rd St., 4th
Floor, New York, NY 10036.
Available from American Petroleum Institute, 1220 L Street, NW, Washington,
DC 20005.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 865
TABLE 1 Chemical Requirements
entry, at all times while work on the contract of the purchaser
Composition, max %
is being performed, to all parts of the manufacturer’s works
Phosphorus Sulfur that concern the manufacture of the material ordered. The
manufacturer shall afford the inspector all reasonable facilities
All processes 0.14 0.35
to satisfy him that the material is being furnished in accordance
with this specification. All tests and inspection shall be made at
the place of manufacture prior to shipment, unless otherwise
8. Galvanized Couplings
specified, and shall be so conducted as not to interfere
8.1 Galvanized couplings may be coated with zinc by either
unnecessarily with the operation of the works.
the hot-dipped (Type 1) or by the electrogalvanizing process.
11.2 Responsibility for Inspection—Unless otherwise speci-
(Type II) as specified by the purchaser. The zinc used for the
fied in the contract or purchase order, the manufacturer is
coating shall be any grade of zinc conforming to Specification
responsible for the performance of all inspection and test
B6.
requirements specified herein. Except as specified in the
8.2 Hot-dipped galvanized couplings are coated prior to
contract order, the producer may use his own or any other
threading.
suitable facilities for the performance of the inspection and test
8.2.1 The minimum weight of the zinc coating on the
outside surface of the hot-dipped galvanized couplings shall be requirements specified herein unless disapproved by the pur-
chaser. The purchaser shall have the right to perform any of the
equivalent to 1.6 oz/ft .
8.2.2 The weight of the zinc coating on the outside surface inspections and tests set forth in this specification where such
shall be determined by the use of a magnetic thickness gage, inspections are deemed necessary to assure that material
using the procedure in Specification A 90 or using another
conforms to prescribed requirements.
method that is mutually agreed upon between the purchaser
11.3 The manufacturer or supplier shall upon request, fur-
and the manufacturer.
nish to the purchaser a certificate of inspection stating that the
8.3 Electrogalvanized couplings are coated either before or
material has been sampled, tested, and inspected in accordance
after threading.
with this specification, and has been found to meet the
8.3.1 The weight of the zinc coating on the outside surface
requirements.
of the electrogalvanized couplings shall be equivalent to 0.18
oz/ft (see also 8.2.2)
12. Rejection
8.4 Sampling—Samples of couplings su
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.