1、i p-oCs-JO MIL-E-24355B 34 W 7779706 0246843 9 W MIL-E-24355B(SH) 16 April 1982 SUPERSEDING MIL-E-24355A(SHIPS) 24 October 1975 (See 6.5) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of Ltse in improving this document should be addressed to: Command
2、er, Naval Sea Systems Command, SEA 3112, Department of tHe Navy, Washington, DC 20362 by using the self-addressed Standardi- zation Document Improvement Proposal (DD Form 1426) appearing at the end I of this document or by letter. MILITARY SPECIFICATION ELECTRODES, WELDING, BARE, SOLID, NICKEL-MANGA
3、NESE- CHROMIUM-MOLYBDENUM ALLOY STEEL FOR PRODUCING HY-130 WELDMENTS FOR AS-WELDED APPLICATIONS . This specification is approved for ase by the Naval Sea Systems . Departments and Agencies of the Department of Defense + Command, Department of the Navy, and is available for use by all 1. SCOPE 1.1 Sc
4、ope. Tnis specification covers the reqairements for bare steel electrodes for welding HY-130 steel by using mechanized (automatic) gas tungsten-arc (GTA) process, manual (semi-automatic) or mechanized (automatic) gas metal-arc (GMA) welding process with spray transfer type arc, or pulsed spray weldi
5、ng type arc. 1.2 Classification. Electrodes covered by this specification are classified on the basis of type, welding position, size, and base metal thickness to be welded as shown in table I, as specified (see 6.2). A- Provided by IHSNot for ResaleNo reproduction or networking permitted without li
6、cense from IHS-,-,- MIL-E-24355B 34 W 7777906 024b842 O W 1/16 (0.062) 3/32 (0.094) TABLE I. Classification. Horizontal fillets and flat MIL-140s-I -I Base metal thickness to be welded I- -LI- 3/4-inch and thicker Electrode size, Welding position diameter (inch) -I All -I 0.035, 0.045 - 2. APPLICABL
7、E DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of
8、this specification to the extent specified herein. SPECIFICATIONS FEDERAL BB-0-925 - Oxygen, Technical, Gas and Liquid, PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-1055 - Barrier Material, Wat.erproofed, Flexible. MILITARY . MIL-P-116 - Preservation-Packaging; Methods of. MIL-W-10430 - Welding Ro
9、ds and Electrodes; Preparation for MIL-A-18455 - Argon, Technical. MIL-S-24371- Steel Plate, Alloy, Structural, High Yield MIL-1-45208 - Inspection System Requirements. Delivery of. Strength (HY-130). STANDARDS FEDERAL FED-STD-151 - Metals; Test Methods. Provided by IHSNot for ResaleNo reproduction
10、or networking permitted without license from IHS-,-,-MIL-E-24355B 34 777770b 0246843 2 MIL-E-24355B(SH) MILITARY MIL-STD-271 - Nondestructive Testing Requirements for MIL-STD-1601 - Method for 5/8 Inch Dynamic Tear Testing of Metals, Metallic Materials. 2.1.2 Other Government documents and publicati
11、ons. The following other Government documents and publications form a part of this specifica- tion to the extent specified herein. DEPARTMENT OF LABOR Code of Federal Regulations, Title 29 Part 1910 - Occupational Safety and Health Standards. (Application for copies should be addressed to the Superi
12、ntendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) PUBLICATIONS NAVAL SEA SYSTEMS COMMAND (NAVSEA) NAVSEA 0900-LP-003-g000 - Radiographic Standards for NAVSEA 0900-LP-005-5000 - Standard Procedures for Prepro- Production-Repair Welds. duction Testing Materials by the Expl
13、osion Bulge Test. (Copies of specifications, standards, and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part
14、of this specification to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN WELDING SOCIETY (AWS) A3.O - AWS Definitions - Welding and Cutting. B4.0 - Standard
15、 Methods for Mechanical Testing of Welds. (DoD 249.1 - Safety in Welding and Cutting. adopted) (Application for copies should be addressed to the American Welding Society, Inc., 2501 N.W. 7th Street, Miami, FL 33125.) (Industry association specifications and standards are generally available for ref
16、erence from libraries. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict bstween the .text of this specification and the references cited herein, the text of this specification shall take precedence. 3 Provided by IHSNot
17、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-24355B 34 9797706 02468114 4 m MI L-E-2 4 35 5 B ( SH) 3. REQUIREMENTS 3.1 Qualification. Electrodes furnished under this specification shall be products which are qualified for listing on the applicable qualified
18、products list at the time set for opening bids (see 4.3 and 6.3). 3.2 Definitions. For the purpose of this specification the welding terms and definitions contained in AWS A3.O and 3.2.1 shall apply. processor of the welding electrodes, engaged in the final cleaning, spooling, marking and packaged o
19、perations. 3.2.1 Contractor. The contractor is defined as the actual 3.3 Alloy identity. Each end of rod or wire to be spliced during processing shall be tested for alloy identity (see 4.7.11, except when splicing is done to repair a wire break without removing the wire from the process line. 3.3.1
20、Both ends of each coil drawn to final size shall be tested for alloy identity (see 4.7.1) before rewinding and spooling. 3.3.2 When specified (see 6.21, each electrode shall be tested for alloy identity in accordance with 4.7.1 after final marking. Identifica- tion marking of each spool tested after
21、 final marking and meeting the acceptance criteria of 4.7.1 shall include the words “ALLOY TESTED“. 3.4 Finish. Electrodes shall have a clean, smooth, and bright finish that will not rust in the original unopened container stored under roof and on dry platforms. Electrodes shall be free from slivers
22、, depressions, scratches, and scale or foreign matter thatwould adversely affect the welding characteristics, the operation of the equipment, or the properties of the deposited metal. 3.5 Hydrogen content. Electrode shall be processed and packaged so that the hydrogen content is less than 3.0 parts
23、per million (p/m) when sampled and analyzed as described in 4.7.3. 3.6 Dimensional tolerances. The diameter of the electrode shall not vary from the nominal diameter by more than plus or minus 0.001 inch. 3.7 Winding. Spools shall be level and layer wound and shall uncoil freely without tangling or
24、bumping. Each layer shall be one diameter thick without cross-overs or wedging. 3.8 Cast and helix. The cast and helix of spooled electrode shall be such as to have imparted to the electrode a curve such that a specimen sufficient in length to form one loop when cut therefrom and placed on a flat su
25、rface shall form an unrestrained circle within diametrical limits specified in table II. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-24355B 34 = 7777906 02468115 6 Cast (inches) Helix (inches)- 1/ (maximum) Minimum Maximum lyl- 5 10 1 /2
26、12 30 15 36 1-1/2 10 30 1 - A TABLE PT. Cast and helix. Form (spools) 3a 3b (0.030 and smaller) I 3b. (0.035 and larger) 3f L?Vertical separation between overlapped ends. 3.9 Chemical composition. Electrodes shall conform to the chemical composition specified in table III. TABLE III. Chem-ical compo
27、sition (percent - i/ - by weight).- Elements Carbon Manganese Phosphorus Sulfur Silicon Copper Nickel Chr omi um Molybdenum Va nad i um Titanium 2 i r aon i um Alum? num MIL-140s-1 0.12 1.50/2.00 0;OlO .o10 .30/0.50 .15 1,95/3.10 0.65/1 o05 , 40/ 1.00 . o4 0 o4 . o4 .o4 l?single values are maximum.
28、3.10 Welding characteriatics. During welding, electrodes shall operate smoothly without interruption or exaessive spatter, and shall produce weld beads of uniform appearance and form, 3.11 Groove weld propert?ies, 3.11.1 Soundness. Electrodes shall be capable of depositing groove welds which are fre
29、e from slag entrapments, weld metal cracking, and porosity in excess of grade I of NAVSEA 0900-LP-003-9000. Radiographic indications having a maximum length of 1/8 inch may be evaluated as porosity. 5 o; Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
30、,-m al E al L. *rl a d al L h i, L al a O all information will be held in confidence by the Government.) (a) MIL-type and size under which approval is desired. (b) Composition of wire in terms of nominal percentages for each (c) Shielding gas composition. (d) Brand name of electrode. (e) Cleaning me
31、thod. constituent. 4.3.2 Samples for qualification tests. An electrode sample gf MIL-type and size for which qualification is desired shall be selected at one time and submitted for qualification testing. Qualification will be . granted only for the MIL-type and size which has been submitted and whi
32、ch has successfully passed the qualification tests. The number of spools of electrode selected shall be a sufficient quantity to perform the required tests. The samples shall be selected in the presence of the Government . representative. 8 Provided by IHSNot for ResaleNo reproduction or networking
33、permitted without license from IHS-,-,-m rl E +, L al a C a C O rl c, m o rl rl m 5 L d 2 w al Li rl al L m al c, -a t?l x m C O rl c, m C rl x al k O h L m .fn I 4 m *, m al c, W C E O rl c, C .A E m x e m m n c, n al c, C O rl c, o rl rl m 2 m a ci O h L - mal al 5 a m rl L n I H * al rl n d In. W
34、 MIL-E-29355B 39 W 7797706 02Lib49 3 m MIL-E-24355B(CH) W E m alal WM OL Lm .oll o alo a rln ala Lid +E alm rl I, w? =t QI oI1 .at 04 % W Co C m ow CL +o Io wo wm 04 LW oal hc, o cal c,n rl no or( aa mo ?C 2% U ci O d 2 I : 8 2 8 o 4 n o rl rl 0 rl U 0 al C rl al V C m t 2 8 : 3 C , d m C O rl Y 0 a
35、l a E rl al 0 C m E 8 C O 0 h U rl rl m a L 8 aD C 4 d VI - MIL-E-24355B(SB) II . 1Q d al al U n h O Y m al E; al n I B 8 U L ci 8 m al Y a al 9 h O U I O rlrl L3 1 Wal U no alL UY Ud val al dQ on rlc m U nh c9 2: al: $0 t$ and the settings shall provide stable arc characteristics, adequate penetrat
36、ion, and suitable wetting. 4.7.4.4 Base material. The base-plate material used in preparation of test joints shall be HY-130 steel in accordance with MIL-S-24371, 4.7.4.5 Welding technique. Procedures for making qualification and quality conformance test welds shall conform to the following: MIL-1 4
37、0s-1 A low cooling rate and a high cooling rate weldment shall be fabricated for each size electrode in I-inch plate. The flat position with spray transfer shall be used for the 1/16 (0.062) inch diameter electrode and the vertical position with pulsed spray welding shall be used for the 0.035 and 0
38、.045-inch diameter electrodes. accordance with table X. to cool in still air at room temperature, and prior to resumption of welding, the assembly shall be reheated to the same preheat temperature as was used at the beginning of the test required by (a) or (c) above. After welding is completed, the
39、weldment shall be allowed to cool in the air, and no postweld heat treatment shall be employed. Cooling rate parameters for figures 2 and 3 shall be in Should welding be interrupted, the assembly shall be allowed TABLE X. Cooling rate parameters 4.7.4.6 Radiographic inspection. When 48 hours has ela
40、psed after completion of the welding, the weld reinforcement and backing strips shall be removed flush with the base-plate on both surfaces. The welds of figures 2 and 3 shall be inspected radiographically in accordance with level 2-2T of MIL-STD-271 for compliance with the requirements of 3.11.1. 1
41、4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-E-243556 34 W 779770b 0246855 9 W MIL-E-24355B(SH) 4.7.4.7 Mechanical tests. Side bend, when required, and tensile test specimens shall be machined and tested in accordance with ANSI/AWS B4.0. T
42、he 5/8-inch dynamic tear test specimens shall be machined and tested in accordance with MIL-STD-1601 for compliance with the requirements of table IV. Two specimens are required for the initial test of MIL-STD-1601. 4.7.4.7.1 Removal of test coupons. Flame cutting shall not be used within 1/2 inch o
43、f the faces of the weld for the removal of test coupons, 4.7.4.7.2 Specimen finishing. Only sawing or machining shall be used for specimen finishing. 4.7.4.7.3 Side bend and tensile test. The transverse side bend test coupons required for qualification testing only shall be removed from the weldment
44、 of figure 2 next to the discard ends. The tensile test coupons shall be removed from the weldment of figure 2 as shown. The transverse side bend, when required, and tensile test specimens shall be finished and tested in accordance with ANSI/AWS B4.0. 4.7.4.7.4 Dynamic tear test. The 5/8-inch dynami
45、c tear test coupons shall be removed from the weldment of figure 3 as shown. The test speci- mens shall be finished and tested in accordance with MIL-STD-1601 for compliance with the requirements of table IV. 4.7.4.8 Unsatisfactory test results. If the results of the first radiographic examination,
46、bend, dynamic tear, or tensile tests are deter- mined to be unsatisfactory, one retest involving twice the number of speci- mens originally required may be permitted. The results of all retests shall be satisfactory for lot acceptance. 4.7.5 Explosiont bulge test. The explosion bulge test shall be c
47、onducted for MIL-140s-1 in accordance with NAVSEA 0900-LP-005-5000 using the following procedures: (a) The base-plate material shall be HY-130 steel in accordance (b) Direct current, reverse polarity shall be used. (c) The greheat and interpass temperature shall be 150F to 175 F and the heat input s
48、hall be 30,000 to 35,000 joules per inch. (d) The flat position with spray transfer shall be used for the 1/16 (0.062) inch diameter electrode and the vertical position with pulsed spray welding shall be used for the 0.035 and 0.045-inch diameter electrodes. (e) Should welding be interrupted, the as
49、sembly shall be allowed to COO1 in still air at room temperature, and prior to resumption of welding, tge assembAy shall be reheated to a temperature range of 150 F to 175 F. (f) After welding is completed, the weldment shall be allowed to cool in the air, and no postweld heat treatments shall be employed. with MIL-S-24371. 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without
