ASTM A134-96(2012)
(Specification)Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)
Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)
ABSTRACT
This specification covers electric-fusion (arc)-welded straight seam or spiral seam steel pipes with diameters NPS 16 and larger. The materials for these pipes as well as the welding procedure shall conform to other ASTM standards listed herein. This standard also contains requirements for the permissible weight and dimension variations and pipe lengths.
SCOPE
1.1 This specification covers electric-fusion (arc)-welded straight seam or spiral seam steel pipe NPS 16 and over in diameter (inside or outside as specified by purchaser), with wall thicknesses up to 3/4 in. (19.0 mm), inclusive. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. Note 1—Acceptability for many services may be controlled by codes or standards such as those published by the American National Standards Institute and American Society of Mechanical Engineers. Note 2—For testing methods not specifically covered in this specification, reference can be made to Test Methods and Definitions A370, with particular reference to Annex A2 on Steel Tubular Products. Note 3—A comprehensive listing of standardized pipe dimensions is contained in ANSI B 36.10.
1.2 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. Note 4—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
1.3 The following caveat pertains specifically to Section 5 of this specification. 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 health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:A134 −96 (Reapproved 2012)
Standard Specification for
Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and
Over)
This standard is issued under the fixed designation A134; 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 Department of Defense.
1. Scope A283/A283M Specification for Low and Intermediate Ten-
sile Strength Carbon Steel Plates
1.1 This specification covers electric-fusion (arc)-welded
A285/A285M Specification for Pressure Vessel Plates, Car-
straight seam or spiral seam steel pipe NPS 16 and over in
bon Steel, Low- and Intermediate-Tensile Strength
diameter (inside or outside as specified by purchaser), with
A370 Test Methods and Definitions for Mechanical Testing
wall thicknesses up to ⁄4 in. (19.0 mm), inclusive. Pipe having
of Steel Products
other dimensions may be furnished provided such pipe com-
A570/A570M Specification for Structural Steel, Sheet and
plies with all other requirements of this specification.
Strip, Carbon, Hot-Rolled (Withdrawn 2000)
NOTE 1—Acceptability for many services may be controlled by codes
2.2 ASME Boiler and Pressure Vessel Code:
or standards such as those published by theAmerican National Standards 4
Section IX Welding Qualifications
Institute and American Society of Mechanical Engineers.
2.3 American National Standards Institute Standard:
NOTE 2—For testing methods not specifically covered in this
specification, reference can be made to Test Methods and Definitions B 16.25 Buttwelding Ends
A370, with particular reference to Annex A2 on Steel Tubular Products.
B 36.10 Welded and Seamless Wrought Steel Pipe
NOTE 3—A comprehensive listing of standardized pipe dimensions is
contained in ANSI B 36.10.
3. Ordering Information
1.2 The values stated in inch-pound units are to be regarded
3.1 Orders for material under this specification should
as standard. The values given in parentheses are mathematical
include the following, as required, to describe the desired
conversions to SI units that are provided for information only
material adequately:
and are not considered standard.
3.1.1 Quantity (feet, metres, or number of lengths),
3.1.2 Name of material (electric-fusion (arc)-welded pipe),
NOTE 4—The dimensionless designator NPS (nominal pipe size) has
been substituted in this standard for such traditional terms as “nominal
3.1.3 Grade (Section 4),
diameter,” “size,” and “nominal size.”
3.1.4 Size (inside or outside diameter and nominal wall
1.3 The following caveat pertains specifically to Section 5
thickness),
of this specification. This standard does not purport to address
3.1.5 Length (specified or random),
all of the safety concerns, if any, associated with its use. It is
3.1.6 Specific straightness requirements (see 12.3),
the responsibility of the user of this standard to establish
3.1.7 End finish (Section 15),
appropriate safety and health practices and determine the
3.1.8 Hydrostatic test pressure (Section 11),
applicability of regulatory limitations prior to use. 3.1.9 ASTM designation, and
3.1.10 End use of material.
2. Referenced Documents
4. Material
2.1 ASTM Standards:
A36/A36M Specification for Carbon Structural Steel
4.1 The steel from which the pipe is made shall conform to
Specifications A283/A283M, A285/A285M, A570/A570M,or
A36/A36M or to other ASTM specifications for equally
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
suitable weldable material, as specified. For purposes of
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.09 on Carbon Steel Tubular Products.
Current edition approved March 1, 2012. Published November 2012. Originally
approved in 1931. Last previous edition approved in 2005 as A134 – 96 (2005). The last approved version of this historical standard is referenced on
DOI: 10.1520/A0134-96R12. www.astm.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Society of Mechanical Engineers, 345 E. 47th St.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM New York, NY 10017.
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute, 11 West 42nd St., 13th
the ASTM website. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A134−96 (2012)
marking and certification, when required, the pipe grade of Procedure or ASME Section IX of the Boiler and Pressure
material shall be established by the A xxx plate specification Vessel Code as agreed to between the manufacturer and the
designation and plate grade, when applicable. purchaser using the tests and test values specified in 9.2 and
9.3. Thicknesses less than ⁄8 in. (10 mm) shall be qualified for
5. Manufacture
3 3
each wall thickness of pipe manufactured.Thicknesses ⁄8 to ⁄4
in. (10 mm to 19.0 mm), inclusive, shall be qualified in ⁄8-in.
5.1 The longitudinal edges of the steel shall be shaped to
(10-mm) thickness.
give the most satisfactory results by the particular welding
process employed. The steel shall then be properly formed and
9.2 Two reduced-section tension specimens (transverse
may be tacked preparatory to welding. The weld shall be made
weld) made in accordance with Fig. 21 of Test Methods and
by automatic means (except tack welds) and shall be of
Definitions A370, with the weld reinforcement removed, shall
reasonablyuniformwidthandheightfortheentirelengthofthe
show a tensile strength not less than 100 % of the minimum
pipe. By agreement between the purchaser and the
specified tensile strength of the base material used.
manufacturer, manual welding by qualified procedure and
9.3 Two face-bend test specimens shall be prepared in
welders may be used as an equal alternate under this specifi-
accordance with Fig. 2(a) of Test Methods and Definitions
cation.
A370 and shall withstand being bent 180° in a jig substantially
5.2 All longitudinal seams, spiral seams, and shop girth
in accordance with Fig. 30 of Test Methods and Definitions
seams shall be butt-welded.
A370. The bend test shall be acceptable if no cracks or other
defectsexceeding ⁄8in.(3.2mm)inanydirectionbepresentin
6. Number of Production Weld Tests
the weld metal or between the weld and the pipe metal after
6.1 One weld test specimen specified in Section 8 shall be
bending. Cracks that originate along the edges of the speci-
made from each lot of 3000 ft (900 m) of pipe or fraction 1
mens during testing and that are less than ⁄4 in. (6.3 mm) in
thereof of each size and wall thickness.
any direction, shall not be considered.
6.2 If any test specimen shows defective machining or
10. Tensile Properties of Production Welds
develops flaws not associated with the welding, it may be
discarded and another specimen substituted.
10.1 Reduced-section tension test specimens required in
6.3 Each length of pipe shall be subjected to the hydrostatic Section 8, taken perpendicularly across the weld with the weld
reinforcement removed, shall show a tensile strength not less
test specified in Section 11, unless otherwise specified in 11.3.
than 95 % of the specified minimum strength of the steel. At
7. Retests
the manufacturer’s option, the test may be made without
removing the weld reinforcement, in which case the tensile
7.1 If any specimen tested in accordance with Section 10
strength shall be not less than the specified minimum tensile
fails to meet the requirements, retests of two additional
strength for the grade of steel used.
specimens from the same lot of pipe shall be made, each of
which shall meet the requirements specified. If any of the
11. Hydrostatic Test (Note 5)
retests fail to conform to the requirements, test specimens may
be taken from each untested pipe length at the manufacturer’s 11.1 Each length of pipe shall be tested by the manufacturer
to a hydrostatic pressure that will produce in the pipe wall a
option. Each specimen shall meet the requirements specified,
or that pipe shall be rejected. stressof60 %ofthespecifiedminimumyieldpointofthesteel
used at room temperature.The pressure shall be determined by
8. Test Specimens of Production Welds
the following equation:
8.1 The weld-test specimens for the reduced-section tension
P 5 2St/D
testshallbetakenperpendicularlyacrosstheweldandfromthe
where:
endofthepipeor,alternatively,fromflattestpiecesofmaterial
P = minimum hydrostatic test pressure, psi (Note 6) (not to
conformingtotherequirementsinthespecificationsusedinthe
exceed 2800 psi (19 MPa)),
manufacture of the pipe. The alternative weld-test specimens
S = 0.60 times the minimum specified yield point of the
shall be welded with the same procedure and by the same
steel used, psi (MPa),
operator and equipment, and in sequence with the welding of
t = specified wall thickness, in. (mm), and
thelongitudinaljointsinthepipe.Thetestpiecesshallhavethe
D = specified outside diameter, in. (mm).
weld approximately in the middle of the specimen. The
specimens shall be straightened cold, and shall be tested at
NOTE 5—A hydrostatic sizing operation is not to be considered a
hydrostatic test or a substitute for it.
room temperature.
NOTE6—Whenthediameterandwallthicknessofpipearesuchthatthe
8.2 Reduced-se
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