1、MIL 4 -4602 5B (HR) 18 SeDtember 1972 SPERSEDNG MIL-# -46025A(B) 13 Hay 1965 MLITARY SPECIFICATION NICKEL BAR, FLAT WIRE (RIBBON) AND STRIP (FOR ELECTRONIC USE) 1. SCOPE 1,l This specification covers one grade of nickel for electronic use in the forms of bar, flat wire (ribbon) and strip (see 6.1).
2、1.2 Classification, 1.2.1 Grade and temDers. The one grade of nickel shall be commercially pure. (see 6.2). It shall be furnished in the following tempers, as specified Annea led As drawn 1.2.2 Finish. Unless otherwise specified in the contract or order, nickel bar, flat wire (ribbon) and strip shal
3、l be furnished in bright finish. 2, APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. STANDARS FEDEU Fed. Test Method Std, No, 151 -Metals; Test Methods FSC
4、 9525, 9530, 9535 .- I TWI$ DQCUMENT CONTAINS I PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-%025B 95 m 9799406 0339750 7 m MIL-N-4602 58( MR) MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes MIL-STD-
5、129 - Marking fior Shipment and Storage (Copies of specifications, standards drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer .) 2.2 Other Dublications. The foll
6、owing documents form a part of this specification to the extent specified herein. the issue in effect on date of invitation for bids or request for proposa 1 sha 11 apply. Unless otherwise indicated, AMERICAN SOCIETP FOR TESTZNG AND MATERIALS E 8 - Tension Testing of Metallic Materials E 18 - Rockwe
7、ll Hardness and Rockwell Superficial Hardness of Metallic Materials E 92 - Vickers Hardness of Metallic Materials E 140- Standard Hardness Conversion Tables for Metals (Applications for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Penn
8、sylvania 19103.) Technical society and technical association specifications and standards are generally available for reference from libraries. distributed among technical groups and using Federal agencies. They are also 3. REQUIREMENTS 3.1 Chemical rea uireents. 3.1.1 The material shall conform to
9、the chemical requirements shown in table I. 2 - -_II- - - ,/- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-46025B 75 m 7777906 OLL775L 7 m MIL-H-4 6025B (MR) Table I. Chemical comDo sition Element Percent Nickel Iron 0.30 1 99.0 min. 2 Oth
10、ers, total 1 .o0 Coppe r . 20 Mangane se 8 35 Carbon . 15 Silicon .20 Sulfur .O08 kaximum unless otherwise indicated. Cobalt counting as nickel 3.1.2 Analysis shall be made routinely only for the elements specifically mentioned in table I. suspected, or indicated in amounts greater than the specifie
11、d limits further analysis shall be made to determine that the total of other elements is not in excess of these limits. If, however, the presence of other elements is 3.1.2.1 The contractor shall furnish analysis of each melt showing the percentage of each of the elements designated in table I. 3.1.
12、2.2 Chemical analysis by the contractor of the individual melts may be waived at the discretion of the procuring activity provided that the producers method of composition control is acceptable or that all material in the lot can be identified as being fzom melts previously analyzed and ,found to be
13、 in conformance with the chemical composition requirements. 3.2 Mechanical Drop ertiee. The mechanical properties of nickel bar, flat wire (ribbon) and strip shall be in accordance with the requirements specified in tables II and III. Table II. Tension t est reauirements Tensile strength, psi Te er
14、max . Bar All sizes Annealed 55,000 - Cold drawn or As drawn 65,000 - Flat wire All sizes Annea led - 75,000 Size mD piha. cold rolled (ribbon) As drawn 80.000 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Table III. Bar dness of cold rolled str
15、I Hardness Bockwell B (rnax.) I 2 Thic knes s 1 or e valent 0.005 to 0.010, incl. 70 Over 0.010 to 0.024, incl. 68 Over 0.021 t o 0.125. inc 1. 64 1 2For hardness conversions, see table IV of ASTM Standard Deepdrawing quality, annealed temper Hardness Conversion Tables for Metals, E 140. Also see 6.
16、3 3.3 -ion al toleranc es. bar . 3.3.1 Distance between Dar alle1 surface s. Bar, measured on the distance between parallel faces, shall not vary at any point from the specified dimensions by more than the amounts shown in table IV. Table IV, Tolerances on distance between oawallel faces of bar Dist
17、ance between inches (minus onlv) parallel faces, Tolerance, inch 1/16 to 3/16, excl. Over 15/16 to 1-1/2, incl. her 1-112 to 2, incl. o . 002 3/16 to 15/16, incl. .O03 .O04 .o05 .O06 Over 2 to 2-3/4, incl. Over 2-3/4 to 4. incl. . 3.3.2 m. 3.3.261 t . Hoaiinal lengths between 6 and 14 feet may be sp
18、ecified. length shall be the specified length plus 2 feet, 1/2 inch. feet, with not more than 25 percent by weight under 9 feet. the lengths shall be within the limits specified in table V. The minimum length shall be the specified length. The maximum 3e3.2e2 Baadm lennths, All random lengths shall
19、be between 4 and 16 If cut straight length8 are specified, 3.3.2.3 Cut st ra inht lennths . 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N- 4
20、6025B (MR) Table VIII. Width tolerances for flat wire (ribbon) Width, Tolerance, inch - inch (plus and minus) Up to 0.031, incl. Over 0.031 to 0.061, incl. Over 0,061 to 0.099, incl. 0.005 008 . O10 - Over 0.099 to 0.187, incl. .O16 3.4.3 Length. If cut straight lengths are specified, the lengths sh
21、all be within the limits as specified in table V. 3.4.4 Permanent set. The flat wire (ribbon) shall be sufficiently rigid so that when 1-1/4 turns are cut free from a spool, the diameter of the resulting loop shall not exceed the flange diameter of the spool on which the wire is furnished. 3.5 Strip
22、. 3.5.1 Thickness. The thickness of strip shall not vary by more than the amounts shown in table IX. Table IX. Thickness tolerances for strip (1) t Tolerance (all widths), Thickness, inch inch (plus and minus) Under 0.006 lO(2) 0.006 to 0.015, incl. . 0,001 Over 0.015 to0.050, incl. .O015 Over 0.093
23、 to 0.125, incl. 004 (lIMeasured 3/8 inch or more from edge except for strip under 1 (*)Expressed as percent of nominal thickness. Over 0.050 to 0.093, incl, O025 inch in width which is measured at any place. 3.5.2 Width. shown in table X. The width of strip shall not vary by more than the amounts 6
24、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-N-qb025B 75 m 777770b OLL9755 b m MIL-N-46025B(MR) . Table X. Width tolerance8 for strid Thickness, Width , Tolerance, inch inch inches (plus and minus) 0.009 and under All widths o .o05 Over 0.009
25、 to 0.024., incl. All widths .O07 Over 0.024 to 0.075, incl. 14 and under .O07 . They shall be machined to size 4.5.1.4 Plat wire (ribbon) un der 1/8 inch thick. The specitaen shall 4.5-2 Har dnesa test specimens, 4.5.2.1 StrfD, Test specimens shall be in accordance with either ASTK E 18 or E 92, wh
26、ichever. is applicable (see 6.3)- 4S.3 Test u rocedures. 4.5.3-1 Chemical analysis. The samples selected in accordance with 4-3.1 shall; be analyzed in accordance with method 111 or method 112 of Fed. Test Method Std. No. E51 to determine conformance with 3. li single analysis of a composite sample.
27、may be made. anaysis by method 111 shall be the basis for acceptance. In case of dispute, . 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.5.3.2 Tension tests. Specimens from samples selected in accordance I with 4.3.2.1 shall be tested in accor
28、dance with AS= E 8. 4.5.3.3 prdness tests. Specimens from samples selected in accordance I with 4.3.2.2 shall be tested in accordance with ASTM E 18 or E 92. (See 6.31, 4.6 ma. 4.6.1 Examination defects. Any sample unit having one or more defects for that sample shall be rejected. sample exceeds the
29、 acceptance number specified in 4.3.3 size, the entire lot shall be rejected subject to the provisions of the section on “Acceptance and Rejection“ of MIL-STD-105. If the number of nonconforming sample units in the 4.6.2 Test failureg. A lot shall be rejected for failure to meet any of the test fequ
30、irements when tested in accordance with 4.5 subject to the provisions of the section on “Rejection and Retests of Fed. Test Method Std. No. 151. 5. PREPARATION FOR DELIVERY 5.1 5.1.1 Flat wire (ribbon) and striD. 5.1.1.1 Unlesa cut lengths are specified, flat wire (ribbon) and strip shall be coiled,
31、 spooled or wound on reels in one continuous length as specified in 5.1.1.2, insuch a manner that it can be unwound fully without breakage or damage, The gross weight of each coil, reel or spool shall not exceed 50 pounds for material greater than 0.025 inch in thickness or 25 pounds for material 0.
32、025 inch or less in thickness. 5.1.1.2 Flat wire (ribbon) and strip material less than 3/16 inch in width shall be wound on spools. furnished on cardboard reels or in coils. Haterial 3/16 inch and wider 1972-714-538/1683 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
