1、MIL-E-24403A 34 9999706 024b874 2 /- 1 t Form Diameter sizes (inches) -e - - - 3a 0.045 0.052 3b .o45 .O52 1/16 5/64 3l-32 7/64 3e .045 .O52 1/16 5/64 3/32 7/64, ,012, 1/8, 5/32 3d 4, A * MILITARY SPECIFICATION ELECTRODES - WELDING, FLUX CORED GENERAL SPECIFICATION FOR 21 December 1981 SUPERSEDING M
2、IL-E-24403(SHIPS) 31 December 1970 (See 6.4) This specification is approved for u8e by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the general requirements
3、for flux cored welding electrodes designed for use with the flux cored arc welding process with or without gas shielding. 1.2 Classification. Electrodes shall be furnished in the following forms and sizes (see table I), and in the type specified in the applicable detail specification (see 3.2 and 6.
4、2): Form 3a - Electrode on small spool (4-inch flange) Form 3b - Electrode on large spool (12-incih and larger flange) Form 3d - Electrode wound in coils with support (60 pounds and Form 3e - E.lectrode wound in coils without support (over 60 Form 4 - Electrode wound .in drum8 under) pounds ) I Bene
5、ficial comments (recommendations, additions, deletiona) and any pertinent data which may be of use in improving this document ahould be addressed to: Commander, Naval Sea Systems Command, SEA 3112, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardi- zation Document Im
6、provement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-24403A 34 W 777770b 024b875 4 W 2. APPLICABLE DOCUMENTS 2.1 Government. documents. 2.1.1 Specifications and st
7、andards. Unless otherwise specified, the following secifications 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 this specification to the extent specified herein. SPECIFICATION
8、S FEDERAL PPP-B-566 - Boxes, Folding, Paperboard. PPP-B-636 - BOX, Fiberboard. PPP-B-676 - Boxea, Setup. PPP-B-1055 - Barrier Material, Waterproofed, Flexible. PPP-D-723 - Drums, Fiber. MILITARY MIL-W-10430 - Welding Rods and Electrodes, Preparation for MIL-E-24403/1 - Electrodes - Welding, Flux Cor
9、ed, Ordinary MIL-E-24403/2 - Electrodes- Welding, Flux Cored, Low-Alloy MIL-1-45208 - Inspection System Requirements. Delivery of. Strength and Low-Alloy Steel. Steel. STANDARDS FEDERAL FED-STD-151 - Metals, Test-Methods. MILITARY MIL-STD-271 - Nondestructive Testing Requirements for Metals. 2.1.2 O
10、ther Government documents and publications. The following other Government documents and publicationa form a part of this specifi- cation to the extent specified herein. DEPARTMENT OF LABOR Code of Federal Regulations, Title 29, Part 1910 - Occupational Safety and Health Standards. (Application for
11、copie8 should be addressed to the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-z MIL-E-24403A 34 7777706 024b87b b W PUBLICATIONS NAVAL SEA SYSTEMS COMMAND (NAV
12、SEA) NAVSEA 0900-LP-003-8000 - Metals, Surface Inspection Accept- NAVSEA 0900-LP-003-9000 - Radiographic Standards for Produc- NAVSEA 0900-LP-005-5000 - Standard Procedures for Preproduc- ance Standards. tion and Repair Welds. tion Testing Materials by the Explosion Bulge Test. (Copies of specificat
13、ions, standards, and publications required by contractors in connection with specific acquisition functions should be officer.) . obtained from the contracting activity or as directed by the contracting 2.2 Other publications. The following document8 form a part of this specification to the extent s
14、pecified herein. The issue5 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 SOCIETY FOR TESTING AND MATERIALS (ASTM) D 635 - Rate of Burning or Extent and Time of Burning, or Both, of Self-Support
15、ing Plastics in a Horizontal Position (DoD adopted). (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN WELDING SOCIETY (AWS) A3.0 - AWS Definitions - Welding and Cutting (DoD adopted). B4.0 - Standard Me
16、thods for Mechanical Testings of Welds. 249.1 - Safety in Welding and Cutting. (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 reference from libr
17、aries. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 Qualification. Th
18、e electrodes furnished under this specifica- tion shall be products which are qualified for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). 3.2 Detail specifications. Detail requirements or exceptions appli- cable to particular type8 of electr
19、odes shall be a5 specified in the appli- cable detail specification. In the event of any conflict between the provisions of this specification and the detail specification, the latter shall govern. = 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
20、MIL-E-24403A 34 W 777770b 0246877 W 1/16 and smaller 5/64 and larger 3.3 Definitions. For the purpose of this specification, the welding terma and definitions contained in AWS A3.0 shall apply. 3.4 General requirements. 3.4.1 Materials. Materials used in fabricating the electrodes shall be asbestos-
21、free, and a certificate of compliance shall be submitted to the contracting activity when required (see 6.2). +o. O02 +O, 003 - - 3.4.2 Finish. Electrodes shall have a finished surface, free from slivers, depressions, scratches (excluding seams), and scale or foreign matter that would adversely affe
22、ct the welding characteristics, the opera- tion of the equipment or the properties of the deposited metal. 3.4.3 Uniformity of core ingredients. Electrodes shall have the core ingredients distributed throughout their length so that the perform- ance of the electrodes and the properties of the weld m
23、etal deposited thereby are not adversely affected. 3.4.4 Chemical composition. The chemical composition of deposited metal shall beas specified in the detail specification (see 3.2). 3.4.4.1 Hydrogen content. The permissible hydrogen content of the deposited weld metal shall be as specified in the d
24、etail Specification (see 3.2). 3.4.5 Mechanical properties. The deposited weld metal shall exhibit mechanical properties specified in the detail specification (see 3.2). 3.4.6 Soundness. Unless otherwise specified in the detail specifi- cation (see 3.21, groove welds shall meet the requirements of N
25、AVSEA 0900-LP-003-8000 for magnetic particle inspection and NAVSEA 0900.-LP-003-9000, class 1 for radiographic inspection. 3.4.7 Explosion bule. When r-equired by the detail specification (see 3.2), welds produced by the electrodes shall pass the explosion bulge test specified in 4.6.5. 3.5 Spooled
26、and coiled electrodes. 3.5.1 Tolerance (diameter size). Diameter of electrode shall not vary from the nominal diameter by more than the limits specified in table Ir. TABLE II. Dimensional tolerances. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
27、L-E-24403A 34 m 9777706 0246878 T m - t Form 3d 3d 3e P 3.5.2 Winding. Each spool, coil, or drum.shal1 be wound from one continuous length of electrode made from a single lot of material, as specified in the detail specification (see 3.2). The winding shall avoid producing kinks, waves, or sharp ben
28、ds and shall be free to unwind without restriction. The starting end of the electrode shall be firmly fastened 50 that it is readily visible to the welder or welding operator. (Inches) 3.5.3 Spool, coil, and drum weights. Spools, coils, and drum shall be furnished in weights specified in the applica
29、ble detail specification (Inches) (see 3.2). 3 minimum 3 minimum 4 minimum 3.5.4 Cast and helix. 3.54.1 Electrodes shall be capable of uniform uninterrupted feeding on automatic or semi-automatic welding equipment. Required Re qu ir ed Not required 3.5.5 3 4-5/8 5 Spool and coil dimensions. 6-3/4 +
30、1/8 12 4 178 2-/2 minimum 3.5.5.1 Form 3a. Spools used for form 3a electrode shall conform to figure 1. 3.5.5.2 Form 3b. Spools used for form 3b electrode shall conform to figure 2. 3.5.5.3 Forms 3d and 3e, Coil dimensions shall be as specified in table III. TABLE III. Coil dimensions and accessorie
31、s. I Width (maximum2 Inside diameter I Accessories Ties- 11 1 Liner- * I 1 LEqually spaced ties shall consist of soft galvanized or coppered steel or nickel and nickel base alloy binding wire, 16 or 18 gauge, or steel straps 318-inch minimum width and 0.010-inch minimum thickness, or pressure sensit
32、ive adhesive coated, fiberglass rein- forced tape 3/4-inch minimum width with a 160 pound per inch width minimum tensile strength and 2-inch minimum overlap. (Only coppered steel, nickel, and nickel base alloy wire and steel strap shall be used for binding nickel base alloys.) ZLiner shall be of dou
33、ble kraft lined fiberboard 0.08-inch thick mini- mum and approximately 4-inches wide, Steel liner shall be used when required by the detail specification (see 3.2). 3.5.6 Identification. Electrodes shall be identified with the specification number, MIL-type, size, and lot control number. 5 Provided
34、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-E-Zq403A 34 m 9999906 02Llb79 L 3.5.6.1 Forms 3a and 3b. Identification shall be placed on the flange of the spool so as to be visible when the spool is positioned on the machine for welding. Identification
35、shall be placed in a manner that is not readily removable. 3.5.6.2 Form 3d. Identification shall be placed on the liner of the coil and shall be legible during the service life of the coil. 3.5.6.3 Form 3e. Identification shall be placed on a tag and the tag firmly attached at the inner end of the c
36、oil. The tag and marking shall be capable of resistin.g effacement or destruction. 3.5.6.4 Form 4. Identification shall be placed on the drum. It shall be legible during the use of the electrode. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con
37、tract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requir
38、ements specified herein, unless disapproved by the Govern- ment. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Inspection system.
39、 The contractor shall provide and maintain an inspection .system acceptable to the Government for supplies and services covered by this specification. The inspection system shall be in accord- ance with MIL-1-45208. 4.2 Classification of inspections. The inspection requirements specified herein are
40、classified as follows: (a) Qualification inspection (see 4.3). (b) Quality conformance inspection (see 4.4). 4.3 Qualification inspection. Qualification tests will be authorized only to manufacturers of welding electrodes. Qualification testa shall be conducted at a laboratory satisfactory to NAVSEA
41、. Qualification shall consist of the examination specified in 4.5.1 and in the detail specifica- tion, and the tests specified in 4.6.2 through 4.6.6 as specifled in the requirements of the detail specification (.see 3.2). 4.3.1 Sample for qualification tests. Unless otherwise specified in the detai
42、l specification (see 3.2), the electrode selected for testing shall be one spool of form 3b, one coil of form 3d, or one drum of form 4, of each size of each MIL-type for which the manufacturer desire8 to qualify, However, if the manufacturer5 formulation is the same for a range of sizes of that MIL
43、-type, only one size of that range of sizes shall be tested to qualify all sizes represented. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.3.2 Special instructions. When applying for qualification test authorization, or after tests have been c
44、onducted and reports submitted, the manufacturer shall furnish the information specified in 4.3.2.1 or 4.3-2.2. (Note: This information, together with qualification test results will be held in confidence by the Government as proprietary infor- mation.) 4.3.2.1 When production is in accordance with
45、lot definition 4.4.2.1(a), the manufacturer shall furnish the following information: (a) Type and size range (each size manufactured shall be speci- fied) for which qualification is desired (see 4.3.1). (b) Composition of tube, or strip, and flux ingredients in terms of nominal percentages for each
46、constituent. (cl Composition of deposited weld metal. (d) Recommended amperage for each weld test and size of (e) Brand name. electrode to be qualification tested. Li.3.2.2 When production is in accordance with lot definition 4.4.2.1(b), the manufacturer shall furnish the following information: (d)
47、(f) The type and size range (each size manufactured shall be specified) for which qualification is desired (see 4.3.1). 1/ Chemical composition control limits for mill coil.- Method of determining chemical composition of the mill 1/ coil .- Production line quality control methods used in producing 1
48、/ electrodes from chemically controlled mill coil.- Percent allowable variation (disclosed) from standard (not disclosed) for each formulated chemical element in the mix of chemically controlled flux material for each MIL-type electrode.- i/ Method of determining chemical composition of the mix of i
49、/ chemically controlled flux material.- Production line quality control methods ueed in producing 1/ electrodes from chemically controlled flux material.- electrode to be qualification tested. Recommended amperage for each weld test, and size of Brand name. 4.4 Quality conformance inspection. 4.4.1 General. Electrodes shall be inspected in accordance with the definitions specified in 4.4.1.-1 through 4.4.1.4. “Informatio
