1、MIL-T-20219D 21 August 1986 SUPERSEDING MIL-T-20219C 22 July 1977 (See 6.4) MILITARY SPECIFICATION TUBE, BRASS, VOICE AND PNEUMATIC This specification is approved for use by all Departments and Agencies of the Department of the Defense. .- 1. SCOPE 1.1 Scope. This specification covers seamless drawn
2、 brass tube correspond- ing to copper alloy UNS No. C26000 for shipboard voice and pneumatic service. 1.2 Classification. Tube shall be size A, B, C, D, E, F, G or H as speci- Tubes are sized by outside diameter (od) except for fied (see 3.5.1 and 62.1). sizes C, E and H which are sized by inside di
3、ameter (id) for use as couplings. .I 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Standards. The following standards form a part of this specification to the extent specified herein. . documents shall be those listed in the issue of the Department of Defense Index - of Specifications and
4、Standards (DoDISS) and supplement thereto, cited in the solicitation. Unless otherwise specified, the issues of these STANDARDS FEDERAL FED-STD-185 - Identification Marking of Copper and Copper Base Ailoy Mill Products. MILITARY MIL-STD-105 MIL-STD-1627 - Bending of Pipe or Tube for Ship Piping Syst
5、ems. - Sampling Procedures and Tables foc Inspection by Attributes. (Copies of those standards required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) Beneficial comments (recommendations,
6、 additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 14
7、26) appearing at the end of this document or by letter. AMSC N/A THIS DOCUMENT CONTAINS 8 PAGES. FSC 4710 DISTRIBUTION STATEMF9T I- A Approved for public release; distribution unlimited I /fol - w - 023 Licensed by Information Handling Services.- flIL-T-20217D 47 7797706 0273836 2 MIL-T-20219D 2.2 O
8、ther publications, The following documents form a part of this speci- fication 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 DoDfSS specified in the solicitation. Unless otherwise specified, the
9、 issues of documents not listed in the DoDISS shall be the issue of the nongovernment docu- ments which is current on the date of the solicitation. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B 135 - Standard Specification for Seamless Brass Tube. B 154 - Standard Method of Mercurous Nitrate T
10、est for Copper B 251 - Standard Specification for General Requirements for Wrought B 601 - Standard Practice for Temper Designations for Copper and E 8 E 18 - Standard Test: Methods for Rockwell Hardness and Rockwell E 29 - Standard Recommended Practice for ndicating Which (Metric) (DoD adopted) and
11、 Copper Ailoys. (DoD adopted) I Seamless Copper and Copper-Alloy Tube. (DoD adopted) Copper Alloys-Wrought and Cast. (DoD adopted) Superficial Hardness of Metallic Materials. Places of Figures are to be Considerecl Significant in Specified Limiting Values, lytic Determination of Copper). Copper Allo
12、ys (Photometric Methods). - standard Methods of Tension Testing of Metallic Materials, i (DoD adopted) (DoD adopted) E 53 E 62 - Standard Methods for Chemical Analysis of Copper and E 478 - Standard Methods for Chemical Analysis of Copper Alloys. - Standard Method for Chemical Analysis of Copper (El
13、ectro- C. (Application for copies should be.addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These doc
14、uments also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the t
15、ext of this specifi- cation shall take precedence. supersede applicable laws and regulations unless a specific exemption has been obtained Nothing in this specification, however, shall 3. REQUIREMENTS 3.1 Chemical. The tube shall conform to the chemical composition of alloy I UNS No. C26000 as speci
16、fied in table I. 2 Licensed by Information Handling ServicesCopper alloy, UNS nob Lead, Ir on , Copper 9 maximum, maximum, percent percent percent . 68 m5-7 1 5 0.07 0.05 C26000 Total other elements maximum, Zinc, percent percent O. 15 remainder ,MJL-T-202L7D Li7 W 779790b 0273837 Tensile stren th,
17、ksi-/ 7 b. 50-70 MIL-T-20219D Roc kwe 11 hardness 30T2/ 34-70 TABLE I. Chemcal requirements. 66 minimum 70 minimum 32 Temper. Sizes A, C, D, E, F and H tube shall be in the hard drawn Sizes B and G shall be in the light drawn (bending) temper, H-55. temper, H-80. Temper designations are in accordanc
18、e with ASTM B 601. 3.3 Mechanical properties. 3.3.1 Hardness and tensile atrength. Hardness and tensile strength of drawn tube shall be as specified in table II. TABLE II. Mechanical property requirements of drawn temper tube. I Copper alloy, UNS no. C26000 L Standard designation H-55 H-80 Fo rme r
19、designation light drawn (bending) hard-draw&/ I i/ ksi = 1000 pounds per square inch (lb/in2). - 2/ Rockwell hardness shall be made on the inside surface of the tube. When suitable equipment is not available for determining the specified Rockwell hardness, other Bockwell scales and values may be spe
20、cified subject to agreement between the manufacturer and the purchaser. 3.4 Residual stress. Tube shall be free from residual stress insofar as can be determined when tested as specified in 4.3.5. 3 Licensed by Information Handling Services005 006 005 *O05 o007 1.16 1.65 1 *30 1.67 3.65 2.000 I-.-&
21、2.250 -I - + e004 049 - .o00 + .o00 065 o004 + o004 049 - woo0 + .o00 049 b. *O04 + .o00 . 109 O o004 MIL-T-20219D 3.5 Dimensions and tolerances. 3.5.1 Diameter, wall thickness, and weight. Tube shall be furnished in conformance with the sizes, tolerances, and nominal weight requirements speci- fied
22、 in table III. TABLE III. Dimensions, tolerances, and weight per foot ,I/ Wall thickness Weight tolerances per foot (plus or minus) (nominal) inch pounds Average di ame t er tole ran ce inch Id inches Od inches Size 0.0035 1 1.10 1 A +o . O00 0 *O04 Ow 049 2 . O00 2*000 i= .o00 . 109 YIII 1 - .O04 1
23、 O05 2.39 1 2 250 E F 3.000 (3 3 O00 005 1.73 I H - - i/ When tube bending is required, order wall thickness to meet the require- ments of MIL-STD-1627. 3.5.2 Tolerances for length, straightness, squareness of cut and roundness shall be in accordance with ASTM B 135. 3.5.3 Length. Unless otherwise s
24、pecified (see 6.2.1), tubes shall be furn- ished in accordance with length schedule as specified in ASTM B 251. 4 Licensed by Information Handling ServicesMIL-T-20219D 47 m 999790b 0273839 8 W 3.6 Identification markinlg. item identification marking shall be in accordance with FED-STD-185. 3.7 Workm
25、anship The tubes shall be clean, smooth, and of the proper dimensions and shall be free from scale, grooving, indentations, cracks, flaws, or other harmful defects. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the co
26、ntractor is responsible for the performance of all inspection requirements as speciied herein* fied 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 Govern
27、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. Except as otherwise speci- 4.1.1 Responsibility for compliance. All items mu8t meet
28、 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. absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring th
29、at all products or supplies sub- mitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective m
30、aterial. The 4.1.2 Certification of quality comformance. A certificate of quality comformance shall be prepared for each lot of materialoffered for acceptance (see 602.2). mechanical tests. Qualitative results of nondestructive tests aiid other inspec- tions or tests shall be recorded on the certifi
31、cate. The certificate shall also state that each lot has been sampled, tested,and inspected in accordance with the specification and meets all specification requirements. shall be signed by a responsible representative of the contractor. The certificate shall include actual data of specified chemica
32、l and The certificate 4.2 4.2.1 - Lot. Sampling for quality confqrmance inspecti0.n. For purposes of sampling, a lot shall consist of a maximum of 5000 pounds of tube of one size offered for delivery at one time. 4.2.2 Visual and dimensional examination. From each lot samples shall be selected for v
33、isual and dimensional examination in accordance with MIL-STD-105, general inspection level II, acceptable quality level 1.5. 4.2.3 Sampling for tests. 4.2.3.1 Chemical analysis. Sampling for chemical analysis shall be in accordance with ASTM B 251. 5 Licensed by Information Handling ServicesMIL-T-20
34、217D Li7 = 7777706 0273820 Li MIL-T-20219D Rounding-off unit for observed or calculated value 4.2.3.2 Hardness test. Samples shall be selected in accordance with ASTM B 251. 4.2.3.3 Tension test. Samples shall be selected in accordance with ASTM B 251. 4.2.3.4 Residual stress test. From each lot one
35、 tube shall be selected and cut for the residual stress test. 4.3 Examination and tests. 4.3.1 Visual and dimensional examination. Each of the sample tubes selected in accordance with 4.2.2 shall be visually and dimensionally examined to verify compliance with this specification. Sample tubes shall
36、be evaluated separately for visual and dimensional examination. Any tubein the sample containing one or more visual or dimensional defects shall not be offered for delivery, and if the number of defective tube6 in any sample exceeds the accep- tance number for that sample, the lot shall be rejected.
37、 4.3.2 Chemical analysis. A chemical analysis shall be conducted in accor- dance with ASTM E 53, E 62, and E 478. 4.3.3 Hardness test. Hardness determinations on each sample specimen shall be made in accordance with ASTM E 18. I 4.3.4 Tension test. Specimen preparation and tensile test shall be in a
38、ccordance with the procedure for tubular products in ASTM E 8 and ASTM B 251. Full size section specimens shall be used unless the capacity of the testing equipment requires the use of longitudinal specimens taken from tube. 4.3.5 Residual stress test. Full section test specimens, 6 inches in length
39、 shall withstand the residual stress test without cracking in accordance with ASTM B 154. 4.3.6 Numerical limits. Fsr purposes of determining compliance with the specified limits fur requirements of the properties listed in table IV, an observed value or a calculated value shall be rounded off in ac
40、cordance with ASTM E 29. TABLE IV. Rounding off proceduie for numerical limits. I Property Chemical composition Tensile strength Yield strength Elongation Nearest unit in the last right-hand place of figure of the specified limit Nearest 1000 lb/in2 Nearest 1 percent I 6 Licensed by Information Hand
41、ling ServicesP MIL-T-20217D Li7 777770b 0273823 h U .* MIL-T-20219D 4.3.7 Rejection. Any specimen failing to conform to this specification shall be cause or rejection of the entire lot. 4.4 Inspection of packaging. Sample packages and packs, and the inspection of the preservation-packaging, packing
42、and marking for shipment and storage shall be in accordance with the requirements of section 5 and the documents specified therein. . 5. PACKAGING (The packaging requirements specified herein apply only for direct Govern- ment acquisition.) 5.1 Preservation, packaging and marking. Material shall be
43、preserved, packaged and marked in accordance with ASTM B 135 (see 6.2.1). 60 NOTES 6.1 Intended use. voice and pneumatic applications. Voice and pneumatic tubes are intended for use in all 6.2 Ordering data. I 6.2.1 Acquisition requirements. Acquisition documents should specify the following: (a) Ti
44、tle, number, and date of this specification. (b) Total length of tube required. (c) Size of tube required (.see 1.2 and 3.5.1). (d) Tube length required if other than random lengths (see 3.5.3). (e) Level of preservation, packaging and marking required (see 5.1). 6.2.2 Data requirements. When this s
45、pecification is used in an acquisi- tion and data are required to be delivered, the data requirements identified below shall be developed as specified by an approved Data Item Description (DD Form 1664) and delivered in accordance with the approved Contract Data Require- ments List (CDRL), incorpora
46、ted into the contract. When the provisions of DoD FAR Supplement, Part 27, Sub-Part 27.410-6 (DD Form 1423) are invoked and the DD Form 1423 is not used, the dota specified below shall be delivered by the coiitractor in accordance with the contract or purchase order requirements. Deliverable data re
47、quired by this specification are cited in the following paragraph. Paragraph no. Data requirement title Applicable DID no. Option - 4. 1.2 Certification datalreport UD I-A-23 2 6 4 (Data item descriptions related to this specification, and identified in section 6 will be approved and listed as such
48、in DoD 5010.12-L., Vol. I, AMSDL. Copies of data item descriptions required by the contractors in connection with specific acquisition functions should be obtained from the Naval Publications and Forms Center or as diricted by the contracting officer.) 7 Licensed by Information Handling ServicesJ -
49、MIL-T-20219D 6.2.2.1 The data requirements of 6.2.2 and any task in sections 3, 4, or 5 of this specification required to be performed to meet B data requirement may be waived by the contracting/acquisition activity upon certification by the offeror that identical data were submitted by the offeror and accepted by the Government under a previous contract for identical item acquired to this specification. does not apply to specific data which may be required for each contract regard- less of whether an identical item has been supplie# previously (for example, test Thi
