ASTM B153-91(2003)
(Test Method)Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
SCOPE
1.1 This test method establishes the requirements for the expansion pin test for copper and copper-alloy pipe and tubing in sizes up to and including 4 in. (102 mm) in outside diameter.
Note 1—For tubes of sizes greater than 4 in. in outside diameter, the following flattening test, as described in the various pipe and tube specifications, is recommended as a substitute for the pin expansion test. For pipe and tubes over 4 in. in outside diameter in the annealed condition, a 4-in. long shall be cut from the end of one of the tubes. This 4-in. long sample shall be flattened so that a gage set at three times the wall thickness will pass over the pipe freely throughout the flattened part. The pipe or tube so tested shall develop no cracks or flaws visible to the unaided eye as a result of this test. In making the flattening test, the elements shall be slowly flattened by one stroke of the press.
Note 2—The term "unaided eye," as used herein, permits the use of corrective lenses necessary to obtain normal vision.
1.2 The values stated in inch-pound units are to be regarded as the standard. SI values given in parentheses are for information only.
1.3 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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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Designation: B 153 – 91 (Reapproved 2003)
Standard Test Method for
Expansion (Pin Test) of Copper and Copper-Alloy Pipe and
Tubing
This standard is issued under the fixed designation B 153; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope The pin shall be made of carbide or tool steel that has been
hardened and ground to the prescribed angle and shall have a
1.1 This test method establishes the requirements for the
smooth, polished surface. The size of the pin at the base shall
expansion pin test for copper and copper-alloy pipe and tubing
be suitable for the size of tubing being tested.
in sizes up to and including 4 in. (102 mm) in outside diameter.
3.2 Testing Machine—Any type of testing machine, either
NOTE 1—For tubes of sizes greater than 4 in. in outside diameter, the
hydraulically or mechanically operated, that will exert pressure
following flattening test, as described in the various pipe and tube
to expand the pipe and tubing on the pin at a uniform rate.
specifications, is recommended as a substitute for the pin expansion test.
Forpipeandtubesover4in.inoutsidediameterintheannealedcondition,
4. Test Specimen
a 4-in. long shall be cut from the end of one of the tubes. This 4-in. long
4.1 The specimen of pipe or tubing to be tested shall be of
sampleshallbeflattenedsothatagagesetatthreetimesthewallthickness
will pass over the pipe freely throughout the flattened part. The pipe or suitable length so that it can be expanded to the required
tube so tested shall develop no cracks or flaws visible to the unaided eye
amount. Both ends shall either be faced square to the longitu-
as a result of this test. In making the flattening test, the elements shall be
dinalaxisinalathe,orsuitablypreparedsoastohaveasmooth
slowly flattened by one stroke of the press.
surface free from scratches or burrs, which might interfere with
NOTE 2—The term “unaided eye,” as used herein, permits the use of
the test.
corrective lenses necessary to obtain normal vision.
1.2 The values stated in inch-pound units are to be regarded
5. Procedure
as the standard. SI values given in parentheses are for infor-
5.1 The test specimen shall be wiped clean to remove any
mation only.
loose chips or dirt from the inside surface. The specimen shall
1.3 This standard does not purport to address all of the
be well lubricated (Note 3) on the inside surface. The pin (3.1)
safety concerns, if any, associated with its use. It is the
for use in the test, as prescribed in the specifications for the
responsibility of the user of this standard to establish appro-
material being tested, shall be wiped clean and free from dirt,
priate safety and health practices and determine the applica-
grit, or chips, and coated with lubricant.
bility of regulatory limitations prior to use.
NOTE 3—No. 1 lard oil or any extreme pressure lubricating oil is
2. Significance and Use recommended as a lubricant.
2.1 When properly performed and interpreted, the expan- 5.2 The test specimen shall be expanded over the pin to the
sion pin test will provide information with regard to the amount prescribed in the
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