ASTM E125-63(1997)
(Specification)Standard Reference Photographs for Magnetic Particle Indications on Ferrous Castings
Standard Reference Photographs for Magnetic Particle Indications on Ferrous Castings
SCOPE
1.1 This collection of reference photographs covers types and degrees of discontinuities occurring in steel castings and other types of ferrous castings detectable by the dry powder magnetic particle method.
1.2 These reference photographs are intended to assist in the classification of those discontinuities revealed in ferrous castings subjected to magnetic particle inspection.
1.3 These reference photographs are intended to be used for purposes of comparison with the magnetic particle indications observed on actual castings.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: E 125 – 63 (Reapproved 1997)
Standard Reference Photographs for
Magnetic Particle Indications on Ferrous Castings
This standard is issued under the fixed designation E 125; 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. These Reference Radiographs have been approved
to replace MIL-M-11473 (ORD). These Reference Photographs have been reproduced through the courtesy of the Steel Founders’
Society from photographs obtained from its member companies.
1. Scope indications as found on production steel castings. They repre-
sent the actual size of the indications and the procedure
1.1 This collection of reference photographs covers types
followed was in accordance with Guide E 709. The peak
and degrees of discontinuities occurring in steel castings and
magnetizing current employed was from 600 to 800 A and prod
other types of ferrous castings detectable by the dry powder
spacing from 4 to 10 in.
magnetic particle method.
4.2 The white line indications as illustrated in most of the
1.2 These reference photographs are intended to assist in the
photographs were obtained by painting the casting area with a
classification of those discontinuities revealed in ferrous cast-
slurry of lamp-black in kerosene, gasoline, or alcohol. A gray
ings subjected to magnetic particle inspection.
magnetic powder is then used. The result is a white indication
1.3 These reference photographs are intended to be used for
under normal photographic methods.
purposes of comparison with the magnetic particle indications
4.3 The black line indications result from applying red
observed on actual castings.
magnetic powder to the casting surface and photographing the
2. Referenced Documents magnetic particle indications.
2.1 ASTM Standards:
5. Basis for Use of Reference Photographs
E 709 Guide for Magnetic Particle Examination
5.1 These reference photographs are intended for use when
2.2 ASTM Adjuncts:
they are specified in the inquiry, contract, order, material
Reference Photographs for Magnetic Particle Indications
specifications, or applicable code, and when the limiting class
3. Identification
of severity is mutually agreed upon by the manufacturer and
the purchaser. It is admitted that it is impossible to rigidly
3.1 The types of discontinuities covered by the reference
interpret magnetic particle indications on castings to a set of
photographs are listed and described in Table 1. Each type of
photographic references; consequently there is a need for close
discontinuity is designated by Roman numerals I through VIII
cooperation between the manufacturer and the purchaser.
as given in the table.
5.2 Unless otherwise specified all accessible surfaces of the
3.2 The degrees of discontinuity severity, in increasing
casting shall be inspected. On many castings, however, only
order where applicable, are denoted by numbers 1 through 5.
certain areas are sufficiently critical to justify this type of
NOTE 1—To avoid any misunderstanding, it should be pointed out there
inspection. In these cases the locations to be inspected shall be
is no correlation between degrees of the various defects. For instance,
specifically agreed upon.
Degree 3 of Type I is not equivalent to Degree 3 of Type II.
5.3 The severity class and the number of castings made
3.3 Each reference photograph is identified with the proper
from the same pattern to be given magnetic particle testing
number and letter designation.
shall constitute a part of the inquiry, contract, or order, or shall
be as specified in the material specification or applicable code.
4. Preparation
5.4 The limiting size and shape of the unit area to be
4.1 The reference photographs represent magnetic particle
inspected shall be established by the applicable code or by
mutual agreement of the manufacturer and the purchaser.
1 When more than one type of discontinuity appears in the
These reference photographs are under the jurisdiction of ASTM Committee
specified area, agreement on this situation should be estab-
E-7 on Nondestructive Testing and are the direct responsibility of Subcommittee
E07.03 on Magnetic Parti
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