Scribd
Upload
4K views4 pages

Astm E125 PDF

Uploaded by

Oscar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF or read online on Scribd
4K views4 pages

Astm E125 PDF

Uploaded by

Oscar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF or read online on Scribd
You are on page 1/ 4
ie Designation: E125 - 63 (Reapproved 2013) Standard Reference Photographs for Magnetic Particle In ations on Ferrous Castings’ “This standard i ued unde the Med designation 12S the umber immediately following the desgnason ints the yea of ‘ial adoption onthe eae of revon te jeu fast ese, A ater i parentheses lacs the yeu fast eappota. A Serie epson (e ndcates an etorial hang soe the last revision or reappoval ‘Thi standard has ben aproed for we by agencies of he Deparamet of Defense These Reference Rasoanaphs have bee sprovedt eplace MIL 11975 (ORD). Tese Reference Photoraphs have been produced tough the courtesy ofthe Stel Founders” Soe fom photguphs obaied om is mene compan. 1. 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 cast- ings subjected to magnetic particle examination. 1.3 These reference photographs are intended to be used for ‘purposes of comparison with the magnetic particle indications ‘observed on actual castings. 2, Referenced Documents 2.1 ASTM Standards:* E709 Guide for Magnetic Particle Testing 2.2 ASTM Adjunets Reference Photographs for Magnetic Particle Indications” 3. Identification 3.1 The types of discontinuities covered by the reference photographs are listed and described in Table 1. Each type of discontinuity is designated by Roman numerals I through VIIL as given in the table. 32 The degrees of discontinuity severity, in increasing order where applicable, are denoted by numbers 1 through 5. [Nore Io avoid any misunderstanding, t should be pointed out there iso correlation between degress of the various defects. For instance, Degree 3 of Type 1 isnot equivalent to Degree 3 of Type ML "Teg reference photographs ae ander he jrnditon of ASTM Cormier EDT on Nondestuctve Teng and are the det responsiliy of Subcommitee 7. on Liquid Peneant and Magnet Parle Met, ‘Curent edn approved June 1, 2013, Published June 2013, Oxignally sppreved in 1963. List previaun eiton approved in 2008 a5 E125 63 2008), DOF 10.152060125-63815. Press reference poographs te avlable on four large chans aranged for ‘chi ofSiconnsy Th sha ar aval from ASTM Hesdqearer. Order ADIEDIRS. "For reirenced ASTM sans, vs the ASTM web, www stor. of conuct ASTM Caniomer Service at service @auem ng. For Antal Book of ASTM ‘Stands vole information, feo the sans Docent Suny age 00 the ASTM website 3.3 Each reference photograph is identified with the proper number and letter designation, 4, Preparation 4.1 The reference photographs represent magnetic particle indications as found on production steel castings. They repre- sent the actual size of the indications and the procedure followed was in accordance with Guide £709. The peak magnetizing current employed was from 600 to 800 A and prod spacing from 4 9 10 in 4.2 The white line indications as illustrated in most of the photographs were obtained by painting the casting arca with a slurry of lamp-black in kerosene, gasoline, or alcobol. A gray magnetic powder is then used. The result isa white indication under normal photographic methods. 4.3 The black line indications result from applying red ‘magnetic powder to the casting surface and photographing the magnetic particle indications. 'S. Basis for Use of Reference Photographs 5.1. These reference photographs are intended for use when they are specified in the inguiry, contract, order, material specifications, or applicable code, and when the limiting class of severity is mutually agreed upon by the manufacturer and the purchaser. It is admitted that it is impossible to rigidly interpret magnetic particle indications on castings to a set of photographic references; consequently there is a need for close cooperation between the manufacturer and the purchaser. 5.2 Unless otherwise specified all accessible surfaces ofthe casting shall be examined, On many castings, however, only certain areas are sufficiently critical to justify this type of ‘examination, In these cases the locations to be examined shall be specifically agreed upon. 3.3 The severity class and the number of castings made from the same pattern to be given magnetic particle examina- tion shall constitute a part of the inquiry, contract, or order, or shall be as specified in the material specification or applicable code. 5.4 The limiting size and shape of the unit arca to be examined shall be established by the applicable code or by enyish © AST ween 100 Br Far Di, PO Bo C70, Wa Canc, PA 9K 869, Una Ss 22a pay doo ‘hqun an s,9asus947 Jo} 51-60-98 Uo wae asee TouNeATANS @} pasuadyT pay yTMuod Sf AuryioMaN JO UOT anpOUoY Umysum Om om GrsF wera) suey wssNOUL Fg POATAASTO AG) e125 - 63 (2013) TABLE 1 Types of Diseontinuitios ae Tipe of Decent Deve, Figure No™ Deine 1 Unear dcconinutios (at tsars and Tia Hib and He Raggod ines of warble wai ay appear as a cola eoned ack) Te or oest mn groups. Tey mayo” ay net ave a denne Ins ot continu Tey usualy grate st the casing "iraoe and general Secoms small a= tay 99 cbepet 2a, bp and be 2 a, 13 a 2 5a, bans Fe 5 (9 examples each) sree tes 144,129, and 45 Appears as a Jogged are or inegusoatees. Shinkage Isa ‘Sioouace dcortnuly thet maybe rough the euros Sy machining or ther aha fatal removal tress ts Int, 12, 9, 4 and Iscats, equ or elngates vaatons of magnetic parties i ooaurng enh aia! ebvton oF Sereda ddomintestany seat. The atone are there the presence of sand, slog erodes Ine sutace meta 1 intemal cis and untises creplets 1195 IN, 142, V3, M4 and A.unorm ine or band using he cbect and inating lack ws ‘of uloneetesn the metal eboc and he casting. vo Posty 2 examples va ana v2 ‘Arpess ounded ae elongates estar of magnate pat eles of various #zam scared a ransom, Mh Wie: 5 examples Incomplet uson and paneraton eposars asa staight con Wild porosity wt ‘uous or nioritent lear indeson, Poety, ausons Incomplta poration me and near coconuts in wel appar ae Sesotbos ndorosteg ma above ‘rotunons waka we rater caching ws Wu Fal Indeasone: Ss ocamplee red pat Powder edged in sutace depres wna ‘aon Pericles doppes tom cables wus. Chisel mars vice ios ws, il aagnate Anomass: S examples ‘anerng scale vues Magnets wring N High extemal megs tele vis hnaton of ators of rent ves ermesbity Powor Dubé up at shar et, vans See Foomnate 2 ‘mutual agreement of the manufacturer and the purchaser. 6. Keywords When more than one type of discontinuity appears in the specified area, agreement on this situation should be estab- lished, 35 These indications, generally, represent evidence of sur- face discontinuities and any deductions or conclusions with regard to depth or extent of the interior nature of the discon- tinuity must be based on exploration by other test methods. 6.1 discontinuities: ferrous castings; indications; magnetic particle indications; magnetic particle examination; magnetic particle inspection; photographs; reference photographs; steel castings ‘5ju0 980 5,008U00TT 40} $1-20-St62 Uo eonD aseg TostadrBun 6» pasunorT TeT

You might also like