1、MIL-T- 1 G 4 2OK (SHI SUPERSEDING MIL-T-16420J (SHIPS) 14 April 1978 4 March 1965 (See 6.6) MILITARY SPECIFICATION TUBE, COPPER-NICKEL ALLOY, SEAMLESS AND WELDED (COPPER ALLOY NUMBERS 715 AND 706) This specification is approved for use by the Naval Sea Systems Command and is available for use by all
2、 Departments and Agencies of the Department of Defense. I. SCOPE y! 1.1 Scope. This specification covers two compositions of round copper-nickel alloy tube for basic piping systems on surface ships and submarines as referenced in MIL-STD-777 and MIL-STD-438. Tube and pipe sizes permit the use of Nav
3、al fittings designed for brazed or welded connections. # 1.2 Classification. Tube shall be of the following compositions, tempers, types, classes, and grades, as specified (see 6.1): Composition: 70-30 copper-nickel (copper alloy no. 715). 90-10 copper-nickel (copper alloy no. 706). Annealed. Light
4、drawn (alloy 706 only). I - Seamless. II - Welded. Temper : Type : 2 50 (50 pounds per square inch (lb/in ) maximum working pressure - type II Class: only). 200 (200 lb/in maximum working pressure). .3 700 (700 lb/inL maximum working pressure). 2 2 2 1650 (1650 lb/in maximum working pressure). 3300
5、(3300 lb/in maximum working pressure - type I only). 6000 (6000 lb/in maximum working pressure - type I only). Special (tube which does not conform to tables III or IV with respect to 1 - Material supplied without heat identification. 2 - Material supplied with heat identification. calculated wall-t
6、o-outside diameter ratio). Grade : 1.2.1 Class 50 tube shall be furnished in alloy 706 only. Class 200 shall be furnished in either alloy 715 or 706, and the remainder of the classes in alloy 715 only. # 1.2.2 Nonstandard (special class) tube shall be classified on the basis of its maximum calculate
7、d working pressure and identified with the next lower nominal pressure class listed in 1.2. Special class tube shall be specified by its nominal class number and “special“. Beneficial comments (recommendations, additions, deletions) and any pertinent date which may be of use in improving this docume
8、nt should be addressed to: Commander, Naval Ship Engineering Center, SEC 6124, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (D Form 1426) appearing at the end of this document or by letter. FSC 4710 Provided by IHSNot for Resa
9、leNo reproduction or networking permitted without license from IHS-,-,-MIL-T- 16 4 2 OK (SH) 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The following documnts, of the issue in effect on date of invitation=is or request for proposal, form a part of this specification to the extent specified her
10、ein. SPECIFICATIONS MILITARY MIL-C-3993 - Copper and Copper-Base Alloy Mill Products: Packaging of: MIL-C-15726 - Copper-Nickel Alloy, Rod, Flat Products (Flat Wire, Strip, MIL-1-45208 - Inspection System Requirements. Sheet, Bar, and Plate) and Forgings. STANDARDS FEDERAL FED-STD-151 - Metals: Test
11、 Methods. FED-STD-185 - Identification Marking of Copper and Copper Base Alloy Mill Products. MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-271 - Nondestructive Testing Requirements for Metals. MIGSTD-278 - Fabrication Welding and Inspection; and Casting
12、 Inspection and Repair or Machinery, Piping and Pressure Vessels in Ships of the united States Navy. PUBLICATIONS MILITARY NAVSEA 0900-LP-003-9000 - Radiographic Standards for Production and Repair Welds. (Copies of specifications, standards, drawings, and publications required by contractors in con
13、nection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) the extent-i- Unless otherwise indicated, the issue in effect on date of I 2.2 Other ublications. The following documents form a part of this specification to . invi
14、tation for bids or request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A342 - Permeability of Feebly Magnetic Materials. E8 - Tension Testing of Metallic Materials. E29 - Recommpnded Practice for Indicating Which Places of Figures Are To Be E340 - Methods for Macroetc
15、hing Metals and Alloys. Considered Significant in Specified Limiting Values. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) 831.1 - Power Piping. (Application for c
16、opies should be addressed to the American National Standards Institute, (Technical society and technical association specifications and standards are generally 1430 Broadway, New York, NY 10018.) available for reference from libraries. and using Federal agencies.) They are also distributed among tec
17、hnical groups 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-LbY20K LI? m 779790b O272220 m Copper alloy No. 106 MIL-T-16 420K (SH) Copper alloy No. 715 3. REQUIREMENTS 706 fully annealed 3.1 Manufacture. Over 4-1/2 50,000 16,000 30 Up to 4-
18、1/21 inclusive 38,000 15,000 30 Over 4-1/2 38,000 13,000 30 # 3.1.1 Tye I tube. Type I tube may be hot or cold worked, or both, and shall be weld- free. Tube shall be finished by such cold working or machining to size and annealing as may be necessary to meet the properties specified herein. require
19、ments is prohibited. shall be either fully annealed clean or annealed and acid cleaned. When light drawn alloy 706 tube is furnished, the tube shall be cold drawn after final anneal and pickle. # 3.1.2 e II tube. Type II tube shall be preformed from copper-nickel alloy flat products con U U U l11I11
20、111l1 I mmmm oommmomooomeooo IIIIII II IIII fi mmm emoornommemwi I I I I I I I I I I II c: . . . . . l Il 1 Il II 111 II o O00 drldNNNmmmOOmmwI-lllllllllllll u0 a C 1 O i c o C U I II III o Il IlII c lmll mwu.lw1w1w1I- I4 1011 000101010100 I II . 1 .I .) .I fi I mII mmmImImlmI“ D I III N I emmm mimm
21、mrnrlwmmdd I I .I. . III imem-rnomrl-m I I rlrlrlNNml I I a m omm 00m00000m0000m0m0000mmmmmooooo Y VII-O OI-*OrlOOOO0000WNNNNOOO 2 d cym- mmw-wooNmmwmommmmomomu.wwwI-I-oo0 u . . O ddrlddrldm-mw-mmo*mw Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
22、IL-T-LbLl20K Ll7 = 99999Ob 0272223 3 MIL-T-16420K (CH) TABLE IV. Dimensions and weights of copper alloy number 706 tube (type I and type II unless otherwise indicated). Outside diameter Inches 0.250 .500 -540 .675 .840 1.050 1.315 1.660 1.900 2.375 2.875 3.500 4.000 4.500 5.000 5.563 7.625 8.625 9.6
23、25 10.750 12.750 14.000 15.000 16.000 18.000 20.000 22.000 22.750 30 .O00 40.000 6.625 Class 50 - type II Wall (min.) calculated thickness Wt./ft. thickness Wt./ft. calculated (min. 1 I Inch q0.035 2 .O35 .O65 .O65 .O65 .O65 .o72 ,072 ,083 .O83 .O95 .O95 .lo9 .120 .125 .134 .140 .151 .187 .187 .250
24、.O65 - - Pounds 0.092 .198 .376 ,483 .613 .779 .989 1.39 1.60 2.32 2.82 3.94 4.51 5.83 7.12 8.28 10.6 12.2 15.3 21.5 24.0 38.0 - - - - - - - - - /Tube with outside diameters 0.250 inch through 2.875 inches available in type I only. YIntended for hydraulic service , no corrosion allowance included. 3
25、.8.3 Avera e outside diameter. Permissible variations in average outside diameter of tube shald mea in table V. TABLE V. Average outside diameter tube to1erances.y I Outside diameter I Permissible variation I Plus Inches 0.250 to 0.675, incl. Over 0.675 to 1.050, incl Over 1.050 to 1.900, incl Wer 1
26、.900 to 2.875, incl Over 2.875 to 4.000, incl Por 4.500 For 5.000 Fot 5.563 For 6.625 For 7.625 For 8.625 See footnote at end of table. Inch o .o .o .o .o .o .o .o .o .o .o .o Minus Inch O .O050 .O060 .O080 . O10 .o12 .O15 .O16 .o17 .o20 .O23 .O26 7 Provided by IHSNot for ResaleNo reproduction or ne
27、tworking permitted without license from IHS-,-,-MIL-T-LbqZOK q7 9997906 02722211 5 MIL-T-16420K (SH) TABLE V. Average outside diameter tube tolerances .y (Continued) Outside diameter Permissible variation Plus I Minus Inches Inch Inch For 9.625 o .o O. 026 For 10.750 .o .O30 For 12.750 .o .O35 Over
28、12.750 .o 1 percent maximum and minimum outside diameters as determined at any cross-section of the tube. The average outside diameter of a tube is the average of the 3.8.4 Weld seam (t e II tube). Outside weld reinforcement shall be smooth for the full length rtha?%nadxd may be flush with the insid
29、e surface or have a uniform kinforcing crown not to exceed the tolerances of table VI. TABLE VI. Weld seam tolerances (type II tube). Thickness of weld crown on Wall thickness inside diameter (max. 1 Under 0.250 0.250 to 0.500 0.500 and over 3/32 3.8.5 Length. 3.8.5.1 Unless otherwise specified (see
30、 6.11, type I tube shall be furnished in mill lengths and type II tube shall be furnished in lengths of 12 to 24 feetwith a tolerance of plus or dnus 6 inches. furnished in specific lengths or to any particular schedule of lengths agreed upon between manufacturer and the procuring activity. Mill len
31、gths shall have a maximum length of 25 feet with a permi8sible vami 3-1/: 3-1/: -.o .reir - *- -o. _- Outs ide diameter onger engths max. ) Snches O 125 . 250 . 375 ,405 500 . 540 ,675 , 750 , 840 1.000 1.050 1.250 1.315 1,500 1.660 1.900 2.000 2.375 2,500 2.875 3.500 4.000 4.500 5.000 5.563 6.625 7
32、.625 8.625 9.625 10 . 750 12.750 Feet - - - 25 25 25 25 25 25 25 25 25 25 25 18 16 16 16 14 10 8 7 7 7 0- - 0. 0. O0 0- Wall thickness (min. Inch O .O35 00- 0-0 1110- ,035 .O65 .O65 .O65 .O65 .O65 .O72 ,072 .O83 083 .o95 .o95 ,109 . 120 125 -134 . 140 . 151 . 187 . 187 . 250 -. .o. .0 -o . . 0. Clas
33、s 200 Length (min. 1 Feet 12 .I).- -o- -. 12 12 12 12 12 12 12 12 12 12 12 12 12 10 10 10 10 8 5 5.1,; 3-1/ -. o. -o -.o. - Longer Length8 (max. 1 Feet 25 - -0 -I 25 25 25 25 25 25 25 25 25 25 25 25 25 18 18 16 14 12 10 8 6 -0 e. - - 0- 0- Percent by weight of longer lengths (min.) . 80 -0 0- 80 80
34、80 80 80 80 80 70 65 60 55 50 40 40 40 35 25 20 10 . - 0- - -0 0- 0- o. TABLE V Class 700 Wall thicknes 8 (min.) Inch - o- . - - O .O65 ,065 . 072 ,072 .O83 .O95 .o95 . 109 . 120 . 134 ,165 . 180 .203 ,203 . 220 . 259 . 284 . 340 . 340 . 380 . 454 -. -. 0-0 - - o- - Length (min. 1 Percen by Wei of l
35、on lengt (min. - - o- 80 80 80 80 80 80 70 70 60 SO 40 40 40 30 30 20 10 - 0- 0- 0- 0- - - - 0- - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE VII. Schedule of mill lengths (type I onl; 1 ness n. ch 65 65 72 72 83 95 95 o9 20 34 65 80 03 0
36、3 20 59 84 40 40 80 54 Length (min . Feet -e- o- -e- - - 12 12 12 12 12 12 12 12 12 10 10 10 10 10 10 8 6 4 3 -1/ 3-1/: 3-1/; -e- - -.- - Class 700 mger engths max . 1 Feet - o- - o- 25 25 25 25 25 25 25 25 25 25 25 18 16 16 16 14 10 8 7 7 7 - O0 - o- - - Percent by weight of longer lengths (min. 1
37、o- - - O0 80 80 80 80 80 80 70 70 60 SO 40 40 40 30 30 20 10 -0 IO - O0 O0 - - -o - -o Wall thickness (min. 1 Inch - o- -0- - 0.035 .O42 . 049 .O58 .O58 .O72 .O83 .O95 ,095 109 120 ,134 ,148 ,165 ,180 ,203 , 250 ,284 340 . 380 . 425 - - o- - - o- Class 1650 Lengtl (min. I Feet o- - - - 12 12 12 12 1
38、2 12 12 12 12 12 10 10 10 10 9 9 8 8 6 5 4 - - - - O0 _- Longer lengthi (max. 1 Feet - - - o- 25 25 25 25 25 25 25 25 25 25 18 18 18 18 18 18 16 14 12 8 7 - - -o O0 - - Percent by weight of longer lengths (min.) - -0 -0 -0 80 80 80 80 80 80 80 70 70 65 50 40 40 40 40 40 40 30 30 20 -0 - - - - -. - W
39、all :hickness (min. ) Inch 0.028 .O35 ,049 .O58 . 072 . 072 . 095 e109 . 120 . 134 -148 -165 -180 ,203 220 . 250 -284 340 . 340 . 380 ,4575 - -o. - o- -. - - - - - C la - Lengt (min. Feet 12 12 12 12 12 12 12 12 12 12 12 12 10 10 10 10 8 8 8 8 7 -0 - 00 -. o- - - - o- - 9/10 Provided by IHSNot for R
40、esaleNo reproduction or networking permitted without license from IHS-,-,-on ia !nt iight nger -thS ,. 1 -0 - - .o 80 80 80 80 80 80 70 70 65 50 40 40 40 40 40 40 30 30 20 ao - -o - o- IO O0 - MIL-T-Lb420K 47 797990b 027222? O MIL-T-16420K (SH) . Wall :h icknes E (min. ) Inch 0.028 . 035 .O49 .O58 .
41、 072 , 072 095 . 109 . 120 , 134 ,148 .165 . 180 , 203 . 220 250 . 284 . 340 . 340 , 380 . 4575 -0- -o -.o -00 e- - -.o .- -e - Class 3300 Length (min. Feet 12 12 12 12 12 12 12 12 12 12 12 12 10 10 10 10 8 8 8 8 7 - -0 - - -o - - -I .- -0 Longer lengths (max. ) Feet 25 25 25 25 25 25 25 25 25 25 25
42、 25 18 18 18 18 16 16 16 14 10 - wo -0 -0 - - - - - - Percent by weight of longer lengths (min.) 70 70 70 70 70 70 70 70 60 60 60 60 55 50 45 40 30 30 20 20 - Wall thickness (min. 1 Inch O .O28 .O58 .O83 .O95 120 . 120 m148 .165 .203 . 220 -238 . 204 . 300 . 340 . 380 . 425 ,454 .5201 ,5474 -0- -o -
43、 - - - - 0-0 - -o o- Class 6000 Length (min.) Feet 12 12 12 12 12 12 12 12 10 10 10 10 8 8 8 5 4 4 3 - - o- -. -. - - .o - - I. O0 Jon ge r lengths (max 1 Feet 25 25 25 25 25 25 25 25 25 18 18 18 16 16 14 11 8 8 5 - -0 0- w- -0 O0 - - .o .o O0 - Percent by weight of longer lengths (min. 1 70 70 70 7
44、0 70 70 65 60 50 50 40 40 30 30 30 30 30 30 30 II - - - - - - .- 00 .o -0 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-ZbY20K Y? 997790b O272228 2 9 Length MIL-T-16 420K (CH) i/ TABU VIII. Specific length tolerances.- For outside For outsi
45、de di ame ters For outside diameters over 1 to diameters up to 1 inch, 4 inches, over 4 inches In ch Inch Inch inclua ive inclusive I mgth, feet9 Up to 6 inches, incl. Over 6 inches to 2 feet, incl. Over 2 feet to 6 feet, incl. Over 6 feet to 14 feet, incl. Over 14 feet Maximum curvature (depth of a
46、rc), inch I 1/32 1/16 3/32 1/2 114 Over 3 to 6, incl. 3/16 Over 6 to 8, incl. 5/16 Over 8 to 10, incl. 1/2 * 1/8 1/4 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-LbYZK 47 7777906 0272227 4 MIL-T- 16 420K (SH) 3.10 Identification markin .
47、When specified (see 6.1), each tube shall be marked in + accorance with FE D-STD-lsdthe f ollcnring identification: (a) Manufacturers name, trademark, or symbol. (b) Alloy designation. (c) Lot number. (d) Temper, type, class, grade, and heat number (for grade 2 tube). (e) Dimensions (outside diamete
48、r and wall thickness). (f) Specification number. 3.10.1 Marking by mans of vibratory tool, electrochemical etching, or by paint or ink atenciling ia acceptable, provided the following conditions are met: (a) Vibratory marking tools shall be fitted with a carbide marking point, or equivalent, and shall be adjusted to provide a legible, shallow, rounded imptession not exceeding 0.010 inch in depth. radius shall be 0.005 inch. Electrolyte us
