1、MIL-C-L532bF 95 999990b OLLb8311 9 INCH-POUNDI MIL-C-15726F 25 October 1988 SUPERSEDING (IN PART) 20 August 1965 (See 6.9) MIL-C-l5726E(SHIPS) MILITARY SPECIFICATION COPPER-NICKEL ALLOY, SHEET, PLATE, STRIP, BAR, ROD AND WIRE This specification is approved for use by all Departments and Agencies of
2、the Department of Defense. 1. SCOPE 1.1 ScoDe. This specification covers copper-nickel alloy sheet, plate, strip, bar, and rod for use in applications in seawater. 1.2 Classification. Copper-nickel alloy shall be furnished in the following compositions, forms, and tempers, as specified (see 6.2). Co
3、mpositions: Alloy C70600 (formerly 90-10) Alloy C71500 (formerly 70-30) Forms : Rod Bar Plate Sheet Strip Wire (nonelectrical) Tempers : 060 (formerly soft) H01 (formerly hard) M20 -Hard M20-Soft Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use i
4、n improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA S523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FS
5、C 9525 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L572bF 95 9999906 OLLb835 O D MIL-C-15726F 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 SDecific
6、ations and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supple
7、ment thereto, cited in the solicitation (see 6.2). SPECIFICATION MILITARY MIL-C-3993 - Copper and Copper-Base Alloy Mill Products; Packaging of. STANDARDS FEDERAL FED-STD-146 - Tolerances for Copper and Copper Base Alloy Mill FED-STD-185 - Identification Marking of Copper and Copper Base Products. A
8、lloy Mill Products. MILITARY MIL-STD-271 - Nondestructive Testing Methods, Requirements for. (Unless otherwise indicated, copies of federal and Military specifications and standards are available from the Naval Publications and Forms Center (ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-50
9、99.) 2.1.2 Other Government Publication. The following other Government publication forms a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. PUBLICATION NAVAL SEA SYSTEMS COMMAND (NAVSEA) 0900-LP-003-8000 - Metals, Surf
10、ace Inspection Acceptance Standards. (Application for copies should be addressed to the Naval Publications and Forms Center (ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.2 Non-Government Dublications. The following documents form a part of this document to the extent specified he
11、rein. Unless otherwise specified, the issues of the documents which are DoD adopted are those. listed in the issue of the DoDISS cited in the solicitation. Unless otherwise. specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2
12、). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-1572bF 95 m 99999Ob OLLb83b 2 m MIL-C-15726F AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) E 8 - Standard Methods of Tension Testing of Metallic E 75 - Standard Methods for.Chemica1 Analy
13、sis of Copper-Nickel E 478 - Standard Methods for Chemical Analysis of Copper Alloys. Materials. (DoD adopted) and Copper-Nickel-Zinc Alloys. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Non-Government stan
14、dards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of Drecedence. In the event of a conflict between the text of this document a
15、nd the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS TABLE I. Chemical reauirements. Copper alloy number Composition Copper plus sum of
16、named Copper (minimum) Nickel Zinc (maximum) Iron Lead (maximum) . Manganese (maximum) Phosphorous (maximum) Sulfur (maximum) Carbon (maximum) elements (minimum) C71500 C70600 70-30 90- 10 99.50 99.50 65.0 86.5 29.0-33.0 9.0-11.0 O. 50 0.50 0.40-1.0 1.00-1.8 0.02 0.02 1.0 1.0 0.02 0.02 0.02 0.02 0.0
17、5 0.05 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-15726F 3.2.1 Recovered materials. Unless otherwise specified herein, all material used in the products covered by this specification shall be new and may be processed using recovered materi
18、als to the maximum extent practicable without jeopardizing the specified requirements. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. 3.3 Mechanical DroDer
19、ties. Sheet, strip and plate shall conform to the mechanical property requirements shown in table II. Bar and rod shall conform to the requirements of table III. TABLE II. Mechanical DroDerties. bar. Dlate. sheet and striD. Size, diameter or iistance between ,arallel faces, inches Jp to 2-1/2 her 2-
20、1/2 Jp to 3/16 thick Jp to 24 wide, Jp to 3/16 her 24 wide her 3/16 to 3/8 inc 1. and 24 wide, incl. 3ver 3/8 to 1/2 thick, incl and up to 24 wide Up to 1/2 thick, incl and over 24 wide Over 1/2 thick, all widths up to 0.021 thick Over 0.021 to 3/16 thick, incl. Over 3/16 thick Up to 3/16, up to 24
21、wide, incl. c I T rire ;beet and itrip 060 H01 “- H01 “- -“ “- -“ 060 060 “- HO 1 mpe r Bar and plate 420 - soft 420 - soft “ “ Y20 -hard 520-hard 320-hard H20-hard “ “ M20-soft “ ensile strength, minimum, ksi Alloy C71500 50 45 60 55 60 55 50 45 Alloy C70600 38 38 38 55 See footnote at end of table
22、. 4 ield strength, 0.5 percent lxtension under load, minimum, ksi 20 18 30 25 30 25 22 18 15 15 15 30 ;longation in : inches, or 4 :imes diameter, percent, minimum 1/ 30 35 10 10 10 15 15 20 20 25 30 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
23、-MIL-C-L572bF 95 m 999990b OLLb838 b W MIL-C-15726F TABLE II. Mechanical properties. bar. Dlate. sheet and strip. - Continued Size, diameter or distance between parallel faces, inches Up to 3/16 thick, over 24 wide Over 3/16 to 3/8 and up to 24 wide, incl. Over 3/8 to 1/2 and up to 24 wi.de, incl, U
24、p to 1/2 thick and over 24 wide Over 1/2 to 3, incl all widths Over 3 to 5, incl, l- T lire sheet and 3 trip H01 “- “- “- “_ “- mper Bar and plate “ M20-hard M20-hard 920 -hard Y20 -hard Y20-hard Lensile strength, minimum, ksi 47 55 50 47 40 38 L Iield strength, zxtension under 2 inches, or 4 0.5 pe
25、rcent Elongation in times diameter, load, minimum, percent, ksi minimum lJ 25 30 28 25 17 15 10 10 12 15 20 20 - 1/ Elongation requirements do not apply to material under 0.010 inch thick. Size, distance between parallel faces, inches All sizes up to 1/2 Over 1/2 to 1 Over 1 to 3 All sizes up to 3/8
26、 Over 3/8 to 1 Over 1 to 3 TABLE I Temper 060 H01 HO 1 H01 060 H04 H04 H04 :I. Mechanical pr Tensile strength, minimum, ksi Alloy C71500 45 65 60 55 Alloy C70600 38 60 50 40 merties. rod. Yield strength, 0.5 percent extension under load, minimum, ksi 18 50 45 35 15 38 30 15 Zlongation in 2 inches, o
27、r 4 :,mes diameter , minimum, percent 30 10 15 20 30 10 15 30 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-LS72bF 75 W 777990b OLLb839 B MIL-C-15726F 3.4 Soundnese. Material shall be of uniform quality and condition and free of defects harmf
28、ul to its intended use such as, seams, pipe, cracks, laminations, laps, excessive scale, fins, porosity, and segregation as determined by visual and the specified nondestructive tests such as, ultrasonic, or dye penetrant inspections. Surface imperfections such as handling marks, straightening marks
29、, light mandrel and die roll marks will not be considered injurious defects, provided the imperfections do not detract from the products end use. 3.5 Cleanlinese. Contaminants, such as sulfur or sulfur containing compounds from lubricants used in forming, machining or other processing, or from marki
30、ng materials used for in-process identification shall be removed prior CO any heat treatment of the material. 3.5.1 During the manufacturing processes, examinations and tests, the material shall not come into direct contact with mercury or any of its compounds nor with any mercury containing device
31、employing a single boundary of contain- ment. ! 3.6 Dimensions. The dimensions of the material shall be as specified in the contract or order (see 6.2). 3.7 Tolerances. Unless otherwise specified (see 6.2), tolerances shall be as specified in FED-STD-146. 3.7.1 When specified (see 6.2), tolerances s
32、hall be all plus or all minus. 3.8 Removal and reDair of defects. Soundness defects may be removed by machining or grinding, provided such removal does not reduce the dimensions below the minimum specified. Spot ground areas shall be faired smoothly into the surrounding material. The removal of a de
33、fect shall be verified by the method originally used to detect the defect. 3.9 -. Identification for marking shall be as specified in 3.9.1 and 3.9.2. (a) Lot number. (b) Contract number. 3.9.2 Alloy identity. When specified (see 6.2), each random mill length, prior to cutting to ordered length, and
34、 each forging shall be shown to be of the correct generic metallurgical group after final marking. 4. QUALITY ASSURANCE PROVISIONS 4.1 ResDonsibilitv for insDection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requ
35、irements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O O 9 MIL-C-15726F his own or any other facilities suitab
36、le 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 set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to pres
37、cribed requirements. 4.1.1 Responsibilitv for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the s
38、pecification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain
39、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. 4.2 Samplinq. 4.2.1 m. Lot shall be as specified in 4.2.1 through 4.2.1.2. 4.2.1.1 Batch melted material.
40、For batch melted material, an inspection lot shall consist of up to 10,000 pounds or less of the same mill form, alloy, temper, and nominal dimensions submitted for inspection at the same time. 4.2.1.2 Continuously cast material. For continuously cast material, an inspection lot shall be the product
41、 of one cast billet or from a single melt charge, whose weight shall not exceed 15,000 pounds that has been continuously processed and subject to inspection at one time. 4.2.2 Sampling for chemical analysis. Sampling for chemical analysis shall be as specified in 4.2.2.1 through 4.2.2.2. 4.2.2.1 For
42、 batch melted material, one sample shall be taken from each melt preferably at the time of pouring. 4.2.2.2 For continuously cast material, samples shall be taken at the beginning of the pour and at the end of the pour. If the cast lasts more than 1 hour, an additional sample will be taken for each
43、hour or portion thereof of pour. The results of analyses for all melts included in an inspection lot shall be reported when certification is specified (see 6.3). 4.2.3 Sampling for mechanical properties. A sample containing four individual lengths of the finished product shall be selected from the l
44、ot. If the lot consists of less than four lengths, the sample shall be taken from each individual length. Specimens shall be taken from two different pieces in the sample selected for testing. Mechanical tests shall be made on each of the specimens so selected. When the lot consists of only one piec
45、e-, only one test shall be required. 4.2.4 Sampling for visual and dimensional examination. Sampling shall be as specified (see 6.2 and 6.7). 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L572bF 95 799970b Olbb81IL b m MIL-C-15726F 4.2.5 Sa
46、mDlinP for nondestructive insDection. When specified (see 6.2), each piece shall be inspected. 4.3 Test Drocedures. The sample shall be tested as specified in 4.3.1 through 4.3.3.1. 4.3.1 Chemical analvsia. The sample selected as specified in 4.2.2 shall be analyzed by the wet chemical or spectrogra
47、phic method to determine compliance with table I. In the case of dispute, chemical analysis shall be performed in accordance with ASTM E 75 with copper analysis in accordance with ASTM E 478. 4.3.2 Tension. The sample selected as specified in 4.2.3 shall be tested in accordance with ASTM E 8 to dete
48、rmine compliance with table II. 4.3.2.1 Yield stren-. Yield strength shall be determined by 0.5 percent extension under load. 4.3.3 Nondestructive test. Items selected as specified in 4.2.5 shall be inspected in accordance with MIL-STD-271. 4.3.3.1 Ultrasonic inmection. Ultrasonic inspection testing
49、 shall be by the longitudinal wave technique. 4.3.3.1.1 -. If reference holes are made in the material to be tested, they shall be so located that their subsequent removal will not impair the suitability of the material for its intended use. 4.3.3.2 Liquid Denetrant insDection. Unless otherwise specified (see 6.21, acceptance criteria for liquid penetrant inspection shall be in accordance with NAVSFA 0900-LP-003-800
