1、MIL-B-70838 (AR) 19 May 1989 MILITARY SPECIFICATION BILLET, DEPLETED URANIUM This specification is approved for use within the U.S. Army Armament, Munitions and Chemical Command and is available for use by all Departments and Agencies of the Department of Defense . I - b z 1. SCOPE 1.1 Scope. w This
2、 specification establishes the requirements, quality assurance provisions and preparation for delivery of depleted uranium billets. 2. APPLICABLE DOCUMENTS 2.1 Government documents. I 2.1.1 Specifications, standards and handbooks. The .following specifications, standards and handbooks form a part of
3、 this specification to the extent specified herein. otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. Unless STANDARDS MILITARY MIL-STD-1
4、05 MIL-STD-129 Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Naval Publications and Forms Center, (ATTN: NPODS), 5801 Tabor Avenu
5、e, Philadelphia, PA 19120-5099.) ,- . THIS DOCUMENT CONTAINS PAGES. Beneficial comments (recommendations, additions, deletions) and any pednent data which may bc of use in improving this document should be addressed to: Commander, U.S. Army Armament, Munitions, and Chemical Command, Attn. AMSMGQA, P
6、icatinny Arsenal, New Jemy 07806-5000 by Usiog the self-addressed Standardization Document improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. 9650 AMSC NIA FSC u Approved for public release; distribution is unlimited. f -. Provided by IHSNot for ResaleNo reproduc
7、tion or networking permitted without license from IHS-,-,-_ MIL-B-70838 36 7377906 0322606 LI MIL-B-70838 (AR) 2.1.2 Other Government documents and publications. The following other Government documents, drawings and publications form a part of this specification to the extent specified herein. Unle
8、ss otherwise specified, the issues shall be those in effect on the date of the solicitation. CODE OF FEDERAL REGULATIONS Title 49 (49 CFR) Hazardous Materials Regulations of the Department of Transportation (Applications for copies should be addressed to Superintendent of Documents, U.S. Government
9、Printing Office, Washington, D.C. 20402) (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Non-Govern
10、ment publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the i
11、ssues of documents not listed in the DODISS shall be the issue of the nongovernment documents which is current on the date of the solicitation. AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM E 8 ASTM E 18 Tension Testing of Metallic Materials, Methods of. Rockwell Hardness and Rockwell Superficial
12、Hardness of Metallic Materials, Test Methods for. (Applications for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) O 2 Y.- -_- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c
13、 a MIL-B-70838 (AR) 2.3 Order of precedence. In the event of a conflict betwen the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this spe
14、cification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. Billets may be manufactured from either virgin derby material, recyclable scrap material or a combination thereof. 3.1.2 Records. The contractor shall mai
15、ntain records of the charge composition for each casting lot. These records shall specify, by weight, type and source of-supply the amount of virgin derby and recyclable scrap (see 6.4) contained within each casting lot. Recyclable scrap shall be categorized as: top crop, sectioned billet or section
16、ed plate. 3.2 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3 and 6.3). 3.2.1 Mold wall identification. For first article only, the sides of the billet will be identifiable to the orientati n of the billet within the m
17、old. 3.2.2 Macrostructure. Macrostructure specimens shall be fabricated and photomacrographs made from the first article sample in accordance with 4.5.1.5.1 for information only. 3.2.3 fabricated sample in Microstructure. Microstructure specimens shall be and photomicrographs made from the first art
18、icle accordance with 4.5.1.5.2 for information only. 3.3 Traceability. Each billet shall be identified by a unique serial number/code which is traceable to the chemical analysis (see 3.4), hydrogen content (see 3.5), and casting parameters (see 3.12) for the casting lot from which the billet is draw
19、n and any rework or repair operations (see 6.14) performed on that billet. The contractors traceability plan shall be submitted to the Government for review in accordance with DI-R-5297/T (see 6.2.1 and 6.2.2.2). 3.3.1 Marking. Each billet shall be permanently marked or stamped with the unique ident
20、ification number/code assigned to that billet. This marking shall be clearly and easily legible and shall be on the top surface (after cropping) of the billet. The contractors proposed method for marking of billets shall be submitted to the Government for review in accordance with DI-P-l604/T (see 6
21、.2.1 and 6.2.2.3). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-B-70838 76 a 9999906 O322608 8 U MIL-B-70838 (AR) 3.3.2 Records. Unless otherwise specified, traceability and inspection data in accordance with UDI-R-22706A (see 6.2.1) shall
22、 be included with each shipment for the billets included in that shipment. In addition, the contractor shall maintain traceability and inspection and test records for a period of not less than five years from the completion of the contract or purchase order. 3.4. Chemistry. Billets shall exhibit the
23、 following chemistry when analyzed in accordance with 4.5.1.2 or 4.5.2.2: Uranium (U) Carbon (C) Nickel (Ni) Iron (Fe) Zirconium (zr) Silicon (Si) Titanium (Ti) Aluminum (Ai) Other .elements 0.25 99.95 120 80 70 60 50 30 20 100 weight percent maximum weight percent minimum parts per million maximum
24、parts per million maximum parts per million maximum parts per million maximum parts per million maximum parts per million maximum parts per million maximum parts per million maximum Uranium content. which may be determined by difference. Combined total of Uranium235 and 3.4.2 Other elements. Other e
25、lements to be analyzed for and reported are: Beryllium (Be), Bismuth (Bi), Boron (B), Cadmium (cd), Calcium (Ca), Chromium (Cr), Copper (Cu), Lead (pb), Magnesium (Mg), Manganese (Mn), Molybdenum (Mo), Niobium (Nb), Sodium (Na), Strontium (Sr), Tin (Sn), Vanadium (v), and Zinc (Zn) 3.5 Hydrogen. The
26、 hydrogen content of the billet shall be less than 1.0 part per million when analyzed in accordance with 4.5.1.1 or 4.5.2.1. 3.6 Matrix inclusions. Billets shall be free from matrix inclusions larger than 0.0008 inch (0.080 inch at 1OOX) with a concentration not to exceed 11 inclusions per 0.02-inch
27、 square (2-inch square at 1OOX). 3.7 Configuration. The dimensions and configuration of the billet shall be as specified in the contract or purchase order (see 6.2.c). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-B-70133d 76 7999706 0322609
28、T W MIL-B-70838 (AR) 3.8 Subsequent processing capability. The billet shall be free of defects which cause any of the following type defects in plate rolled from the billet: a. Cracks; b. Holes; c. Surface discontinuities (e.g., indentations) greater than 0.015 inch in depth and 1.0 inch in length.
29、The contractor shall establish criteria for assuring that each billet meets the requirements specified above. criteria shall apply to both the first article sample and to production billets and shall be submitted to the Government for review in accordance with DI-R-5297/T (see 6.2.1 and 6.2.2.4). An
30、y conflict as to the acceptability of the proposed criteria shall be settled to the satisfaction of the Government. voids, porosity, inclusions or contaminants larger than one-eighth (1/8) inch in any direction. This 3.9 Internal voids. The billet shall be free from internal 3.10 Surface quality of
31、top of billet. The top of the billet shall be free from evidence of end cracks or shrinkage voids after top cropping. -3.11 Plate producibility. Plate rolled from the first article billets shall meet the following requirements when processed using qualified production procedures and analyzed in acco
32、rdance with 4.5.1.7: Hardness Rockwell A Transverse Yield Strength Transverse Tensile Strength Transverse Percent Elongation Longitudinal Yield Strength Longitudinal Tensile Strength Longitudinal Percent Elongation Transverse Fracture Toughness No cracks 62.0-68. O 72,000 psi, minimum 125,000 psi, m
33、inimum 20 percent, minimum 68,000 psi, minimum 143,000 psi, minimum 15 percent, minimum For information No holes No surface discontinuities (e.g., indentations) greater than 0.015 inch in depth and 1.0 inch in length. Thickness uniformity 3.12 Manufacturing methods report/process control documents.
34、all manufacturing operations in accordance with Manufacturing Methods Reports (Process Control Documents). Process Control Documents (PCDs) shall include descriptions of all production The contractor shall generate, maintain and perform Provided by IHSNot for ResaleNo reproduction or networking perm
35、itted without license from IHS-,-,-MIL-B-70838 (AR) 0, I I I I processes, procedures and equipment (including in-process inspection equipment) used to manufacture and inspect the depleted uranium billet. The descriptions shall identify, as a minimum, the complete sequence of operations and schematic
36、 line layouts, basic fabrication equipment (i.e., type, model number, etc.), control parameters and ranges associated with the fabrication process (e.g., time, pressure), associated and special processes, in-process inspections, gages, setups, fixtures and applicable in-process inspection procedures
37、. Manufacturing Methods Reports/Process Control Documents shall be submitted to, and reviewed and classified (see 3.12.1) by the procuring agency prior to performance of the First Article Tests and Examinations and shall be revised and submitted for review whenever changes are made to the approved m
38、anufacturing process. Control Documents shall be made available to the Government for periodic process verification. in accordance with DI-P-1604 (see 6.2.1 and 6.2.2.6). e A copy of the latest approved Process All documents shall be submitted 3.12.1 Processes defined by the contractor generated Pro
39、cess Control Documents shall be classified as either Class I or Class II as defined below. Classification of process control documents. a. Class I - Class I PCDs are, or contain, those processes or processing parameters which either have a major impact upon the safety or performance of the end item;
40、 or are not easily or cost effectively verified by inspection or test. PCDs require technical agency review prior to implementation and will normally require some level of qualification (e.g., an additional first article test or portion thereof) beyond normal quality conformance inspection criteria.
41、 Class II PCDs are all procedures and processing parameters not classified as Class I. Changes made to Class II PCDs must be submitted to the technical agency within five working days of implementation and may require the submittal of an additional first article sample. Changes to Class i b. Class I
42、I - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-70838 7b 777770b OL22bLL 8 m MIL-B-70838 (AR) 3.12.2 Review of manufacturing methods reports. Government review of Manufacturing Methods Reports shall not be construed as certification of a pr
43、ocess to make acceptable product. Government review of Manufacturing Methods Reports is to determine that sufficient information is contained therein and that sufficient control of parameters is exercised to permit the manufacture of a consistent product. Any conflict as to the adequacy of the PCDs
44、shall be settled to the satisfaction of the Government. 3.13 WorkmanshiD. The- billet shall be free of any burrs, surface contaminatio; by foreign materials, cold shuts-and other material inclusions on the billet surface. The billet packaging shall be free from splinters, burrs or sharp edges which
45、may-be- injurious to personnel handling the shipping container. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspections requirements as specified herein. Exce
46、pt 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 requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections
47、set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items shall meet all reauirements of sections 3 and 5. The inspections set forth in this specification shall become
48、a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirem
49、ents of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-70838 96 H 999990
