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ASTM E390-15
Standard Reference Radiographs for Steel Fusion Welds
STANDARD published on 1.9.2015
The information about the standard:
Designation standards: ASTM E390-15
Note: WITHDRAWN
Publication date standards: 1.9.2015
SKU: NS-615856
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM E390-15 :
Keywords:
discontinuities, fusion welds, gamma ray, reference radiographs, steel, X-ray ,, ICS Number Code 25.160.40 (Welding joints and welds)
Additional information
| Significance and Use | ||||||||||||
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4.1 These reference radiographs may be used as a means for establishing the types and severity levels of discontinuities that are revealed by radiographic examination of steel fusion welds. 4.2 Each volume contains illustrations of representative graded and ungraded discontinuities applicable to seven thickness ranges, as shown in Table 1. Table 2 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. 4.3 These reference radiographs may be
used in contractual specifications, for which agreement has been
reached between purchaser and supplier, to establish acceptance
limits of the types and severity levels of discontinuities revealed
by radiographic examination.
4.4 The use of this document is not intended to be restricted to the specific energy levels given in Table 3 or to the thickness limits given in Table 1. This document may be used, where there is no other applicable document, for other energy levels or thicknesses, or both, for which it is found to be applicable and for which agreement has been reached between purchaser and manufacturer. 1.1 This standard provides reference
radiographs for steel fusion welds that contain typical
discontinuities with varying severity levels in different
thicknesses of material. The reference radiograph films are an
adjunct to this standard and must be purchased separately from ASTM
International if needed.
1.2 There are three volumes of reference radiographs based on seven nominal weld thicknesses as follows: Vol Iref—Set of 16 plates (81/2 by 11 in.) covering base material up to and including 1/4 in. (6.4 mm) in thickness. Vol II—Set of 29 plates (81/2 by 11 in.) covering base material over 1/4 to and including 3 in. (6.4 to 76 mm) in thickness. Vol III—Set of 32 plates (81/2 by 11 in.) covering base material over 3 to including 8 in. (76 to 203 mm) in thickness. 1.3 From time to time, there may be minor changes to the process for manufacturing of the reference radiograph adjunct materials. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc.; however, in all cases, these changes are reviewed by the Illustration Monitoring Subcommittee and all reference radiographs are reviewed against a fixed prototype image to ensure that there are no changes to the acceptance level represented by the reference radiographs. Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard. 1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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. |
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| 2. Referenced Documents | ||||||||||||
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