ASTM E1648-95(2001)
(Specification)Standard Reference Radiographs for Examination of Aluminum Fusion Welds
Standard Reference Radiographs for Examination of Aluminum Fusion Welds
SCOPE
1.1 These reference radiographs illustrate various types and severity levels of discontinuities in aluminum fusion welds that may be revealed by radiographic examination. These reference radiographs do not specify the acceptable level of these discontinuities, rather they provide a visual reference for communicating the acceptable level.
Note 1--The reference radiographs consist of a set of eight plates (81 /2 by 11 in. (22 by 28 cm)), covering base material up to and including 0.75 in. (19 mm) in thickness.
1.2 These reference radiographs are based on two nominal weld thicknesses in wrought aluminum products and are applicable to the thickness ranges shown in . The welds were produced using base material plates of 6061 and 5083 alloys and 5356 and 4043 gas metal-arc (GMA) electrodes. These reference radiographs are intended for use in evaluating radiographs of welds in wrought aluminum products. They are not recommended for use with repair welds in cast materials; however, they are appropriate for use with assembly or fabrication welds. Reference radiographs for aluminum and magnesium castings are available in Reference Radiographs E155 and E505.
1.3 The adjunct contains illustrations of representative graded and ungraded discontinuities. lists the discontinuity types and severities illustrated for each thickness of base material. Each of the graded discontinuity types has five severity levels, 1 through 5, in order of increasing severity. The ungraded discontinuities are included for informational purposes.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1648–95 (Reapproved 2001)
Standard Reference Radiographs for
Examination of Aluminum Fusion Welds
This standard is issued under the fixed designation E 1648; 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 2. Referenced Documents
1.1 These reference radiographs illustrate various types and 2.1 ASTM Standards:
severity levels of discontinuities in aluminum fusion welds that E 94 Guide for Radiographic Examination
may be revealed by radiographic examination. These reference E 155 Reference Radiographs for Inspection of Aluminum
radiographs do not specify the acceptable level of these and Magnesium Castings
discontinuities, rather they provide a visual reference for E 505 Reference Radiographs for Inspection of Aluminum
communicating the acceptable level. and Magnesium Die Castings
E 1032 Test Method for Radiographic Examination of
NOTE 1—The reference radiographs consist of a set of eight plates (8 ⁄2
Weldments
by 11 in. (22 by 28 cm)), covering base material up to and including 0.75
E 1316 Terminology for Nondestructive Examinations
in. (19 mm) in thickness.
2.2 ASTM Adjuncts:
1.2 These reference radiographs are based on two nominal
Reference Radiographs for Aluminum Fusion Welds:
weld thicknesses in wrought aluminum products and are
Volume 1, Thicknesses Up to and Including 0.75 in.
applicable to the thickness ranges shown in Table 1. The welds
(19 mm)
were produced using base material plates of 6061 and 5083
alloys and 5356 and 4043 gas metal-arc (GMA) electrodes.
3. Terminology
These reference radiographs are intended for use in evaluating
3.1 Definitions—Definitions of terms relating to X-ray and
radiographs of welds in wrought aluminum products. They are
gamma radiology, as used in these reference radiographs, may
not recommended for use with repair welds in cast materials;
be found in Terminology E 1316.
however, they are appropriate for use with assembly or
fabrication welds. Reference radiographs for aluminum and
TABLE 2 Types of Discontinuities Illustrated for Each Thickness
magnesium castings are available in Reference Radiographs
of Base Material
E 155 and E 505.
Base Material Thickness, in. (mm) and
1.3 The adjunct contains illustrations of representative
Grading
Discontinuity Type
graded and ungraded discontinuities. Table 2 lists the discon-
0.125 (3.2) 0.50 (12.7)
tinuity types and severities illustrated for each thickness of
Fine scattered porosity Grades 1 through 5 Grades 1 through 5
base material. Each of the graded discontinuity types has five
Coarse scattered porosity . Grades 1 through 5
Aligned porosity Grades 1 through 5 Grades 1 through 5
severity levels, 1 through 5, in order of increasing severity.The
Clustered porosity . Ungraded
ungraded discontinuities are included for informational pur-
Incomplete penetration Ungraded Ungraded
poses.
Tungsten inclusions . Ungraded
Undercut Ungraded Ungraded
1.4 The values stated in inch-pound units are to be regarded
Cracks (longitudinal and transverse) Ungraded Ungraded
as the standard.
Crater crack . Ungraded
1.5 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 appro-
4. Significance and Use
priate safety and health practices and determine the applica-
4.1 Use of these reference radiographs requires agreement
bility of regulatory limitations prior to use.
between the using parties as to the acceptable level of each
discontinuity type. Illustrations are provided for welds in
0.125-in. (3.2-mm) thick material and 0.50-in. (12.7-mm) thick
These reference radiographs are under the jurisdiction of ASTM Committee
E07 on Nondestructive Testing and are the direct responsibility of Subcommittee
E07.02 on Reference Radiological Images. Annual Book of ASTM Standards, Vol 03.03.
Current edition approved Aug. 15, 1995. Published October 1995. Available from ASTM Headquarters. Order RRE1648.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E1648–95 (2001)
TABLE 1 Applicable Thickness Ranges
straight dark line that may be either continuous or intermittent.
Illustration Thickness, Theindicationistypicallyasharplydefinedlineortwoparallel
Base Material Thickness, in. (mm)
in. (mm)
lines depending upon the specific geometry of the joint and the
0.125 (3.2) to and including 0.375 (9.5)
width of the discontinuity (see Note 2).
0.50 (12.7) over 0.375 (9.5) to and including 0.75 (19)
NOTE 2—Some welds may be designed for, or permit, incomplete
penetration of the weld. Appropriate drawings and specifications must be
consulted to determine whether the indication represents an unacceptable
material. These illustrations are intended to be representative
condition. Where the condition exceeds specification limits, it is referred
of base material thicknesses up to 0.75 in. (19 mm). Use of
to by some specifications (for example, American Welding Society
these reference radiographs is not intended to be restricted to
(AWS)) as Inadequate Penetration.
the specific energy level or the absolute thickness limits that
6.4 A crack, is a rupture of solidified metal. Cracks associ-
are illustrated. These reference radiographs may be used,
ated with welding may be longitudinal, transverse, or radially
where there is no other applicable document, for other energy
oriented and may occur in the weld metal, base metal, or
levels or thicknesses, or both, for which agreement has been
through both. When the plane of the crack is aligned with the
reached between the purchaser and the manufacturer. Standard
direction of the radiation beam, its radiographic image will
reference radiographs should be used in accordance with
appear as a well-defined jagged or a relatively straight line.As
contractual specifications.
the plane of the crack deviates from the direction of the
radiation beam, the appearance of the crack becomes increas-
5. Preparation of Reference Radiographs
ingly broad and poorly defined.
5.1 The illustrations in Volume 1 are photographic repro-
6.4.1 Longitudinal cracks, are oriented in a direction that is
ductions of a master radiographic set. The radiographs were
generally parallel to the weld bead.
made to a quality level of at least 2–2T in accordance with
6.4.2 Transverse cracks, are oriented such that they tend to
G
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.