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    ASTM E446-98(2004)e1

    Standard Reference Radiographs for Steel Castings Up to 2 in. [51 mm] in Thickness
    • 발행일 : 2004-01-01
    • 발행기관 : ASTM
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분야 03.03 : 비 파괴검사 (Ⅰ)
적용범위

1.1 These reference radiographs illustrate various types and degrees of discontinuities occurring in steel castings that have section thicknesses up to 2 in. [51 mm] (Note 1).

Note 1-Reference radiographs previously used for this thickness range carried the designation E 71, but included a now rarely used gamma source, that is, radium. The current document is also updated by inclusion of several recognized shrinkage or C categories and by elimination of the crack and hot tear categories except for one example of each of these discontinuity types. Reference radiographs for thicker sections may be found in E 186 and E 280.

1.2 These reference illustrations consist of three separate sets (Note 2) as follows: (1) medium voltage (nominal 250-kVp) X rays. (2) 1-MV X rays and Iridium-192 radiation, and (3) 2-MV to 4-MV X rays and cobalt-60 radiation. Each set is for comparison only with radiographs produced with equivalent radiation. It should be recognized that each energy level is not applicable to the entire thickness range covered by this document. Each set consists of 6 categories of graded discontinuities in increasing severity level and 4 categories of ungraded discontinuities furnished as examples only, as follows:

1.2.1 Category A-Gas porosity; severity levels 1 through 5.

1.2.2 Category B-Sand and slag inclusions; severity levels 1 through 5.

1.2.3 Category C-Shrinkage; 4 types:

1.2.3.1 CA-Severity levels 1 through 5.

1.2.3.2 CB-Severity levels 1 through 5.

1.2.3.3 CC-Severity levels 1 through 5.

1.2.3.4 CD-Severity levels 1 through 5.

1.2.4 Category D-Crack; 1 illustration.

1.2.5 Category E-Hot tear; 1 illustration.

1.2.6 Category F-Insert; 1 illustration.

1.2.7 Category G-Mottling; 1 illustration.

Note 2-The illustrations consist of the following:
Volume I: Medium Voltage (Nominal 250 kVp) X-Ray Reference Radiographs-Set of 34 illustrations (5 by 7 in.) in a 15 by 17-in. ring binder.
Volume II: 1-MV X Rays and Iridium-192 Reference Radiographs-Set of 34 illustrations (5 by 7 in.) in a 15 by 17-in. ring binder.
Volume III: 2-MV to 4-MV X Rays and Cobalt-60 Reference Radiographs-Set of 34 illustrations (5 by 7 in.) in a 15 by 17-in. ring binder.

Note 3-Although Category G-Mottling is listed for all three volumes, the appearance of mottling is dependent on the level of radiation energy. Mottling appears reasonably prominent in Volume I; however, because of the higher radiation energy levels mottling may not be apparent in Volume II nor Volume III.

1.3 The values stated in inch-pound units are to be regarded as the standard.

1.4 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.
국제분류(ICS)코드
페이지수 3
Edition 98(2004)e1

이력정보

No. 표준번호 표준명 발행일 상태
1 ASTM E446-20상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2020-12-01 표준
2 ASTM E446-20 REDLINE상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2020-12-01 표준
3 ASTM E446-15상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2015-09-01 구판
4 ASTM E446-15 REDLINE상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2015-09-01 구판
5 ASTM E446-14상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2014-10-01 구판
6 ASTM E446-10상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness 2010-01-01 구판
7 ASTM E446-98(2004)e1상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. [51 mm] in Thickness 2004-01-01 구판
8 ASTM E446-98상세보기 Standard Reference Radiographs for Steel Castings Up to 2 in. (51 mm) in Thickness 1998-05-10 구판

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