1、t MIL-F-24202( SHIPS) 14 February 1966 SWEBSEDING See 6.4 MILITARY SPECIFICATION FITTINGS, BUTT WELDING, SEAMLESS OR WELDED, 70-30 COPPER-NICKEL ALLOY, 700 BI, X)OF. 1. SCOPE 1.1 Scopee,- This specification covers 70-30 copper-nickel alloy seamless or welded butt-welding fittings in sizes 1/2 inch u
2、p to and including 16 inch iron pipe size (.i.p.s.). 1.2 Types. - Fittings shall be of the following types, as specified (see 6.2):- Type I - Seamless Type II - Welded 1.3 Pressure and temperature rating. - Fittings shall have a pressure rating of TOO pounds per square inch (p. S. i. ) at 20C%. 2. A
3、PPLICABLE DOCUMENTS 2.1 The following documents;of the issue in effect on date of invitation for bids or request for proposal, farm a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-C-15726 - Copper-nickel Alloy, Rod, Flat Products (Flat Wire, MIL-T-16420 - Tub
4、e, 70-30 and 90-10 Copper-Nickel Alloy, Seamlese Strip, Sheet, Bar and Plate) Forgings and Welded. MILITARY MIL-STD- - Welding and Allied Processes for Machinery for Ships of the United States Navy. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i .
5、f” ,. ” MIL-F-24202 47 7977706 0443778 8.- d-24202( SHIPS) * STANDARDS MILITARY ( Cont d) MIL-STD- - Nondestructive Testing, Welding, Qudity Control, Material Control and Identification and HI-Shock Test Requirements for Piping System Components for Naval Shipboard Use. (Copies of specifications, st
6、andards, 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 publications. - The following documents form- a part of this specification to the extent s
7、pecified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply AMERICAN SOCIETY OF MEXHANICAL ENGINEERS (W) Boiler Construction Code (Application for copies should be addressed to the American Society of Mechanical %:neers, UnTted
8、Engineering Center, 345 East 47th Street New York K. Y. 10017. ) AMERICAN SPANDARDS ASSOCIATION (ASA.) 16.9 - Wrought Steel Butt Welding Fittings. (Application for copies should be addressed to the American Standards Asso- quirenlents as given in ASME Boiler Construction shape and shall conform to t
9、he Code. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24202 47 9777906 0444000 O MIL-F-242Q2( SHIPS) 3.4 Dimensions , - 3.4.2 Fitting dimensions shall be in accordance with figures 1 through 15 and tables Is through VI1 and on approved dra
10、wings. 3 .h, 3 At no point throughout the fitting, shall the wall thickness be less than dimension “T“ shown on figure 2 (see table II) . por reducing fittings, the minimm wall thickness at any location shall be based on the external diameter at that location. 3.4.4 AL1 elbows, and return bends shal
11、l have a tangent on each end in accordance with column D of table II. 3.4. 4. 1 When fittings are ordered for conswable insert welding (see 6,2), the tangent may be omitted. .The center-to-end dimension for fittings intended for consumable insert welding shall be as shown in table II less the length
12、 of the tangent. 3.4.5 Tolerances on diixensions shall be in accordance with table 111. 3.4.6 Dimensional and contour changes. - Any modifications to fitting design involving dimensional or contour changes other khan weld end preparation, will require a retest in accordance with 4.3.2 prior to accep
13、tance. 3.5 Fabrication. - 3.5.1 All welding shall be in accordance with section 7 of n-sm-798. 3.5.2 Fittings shall contain no more than one weld, either longitudinal or circumferentiai. The weld shall not be located in any of the principal .axes as shown on figure 1. 3.5.3 Unless otherwise specifie
14、d in the contract or order, all fittings shall be furnished with weld end details in accordance with figure 2. 3.6 Marking. - 3.6.1 Each fitting shall be legibly and permanently marked in accordance with section 10 hf MIL-STD-798 and 3.6.2 nd 3.6.3 herein. 3.6.2 Marking. shall include manufacturer s
15、 name or trademark, size ( IPS) 700 WOG, type I (,for segdess ) or type II ( for welded), manufacturers heat code identifi.ct-$on nurnbes and MXL .F-24202, 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24202( SHIPS) 3.6.3 The required marki
16、ngs shall be 1/8 to l/2 inch high depending on the size of the fitting. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requireplents as specified herei
17、n. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to 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 assure supplies a
18、nd services conform to prescribed requirements. 4.2 The fittings are considered to be Level I“ ( see MIL-STD-798) items for the purpose of quality assurance and shall be manufactured under a quality control system which is in accordance with the requirements of section. 8 of MIL-S“D-798 4.3 Qualific
19、ation tests rj! Qualification tests shall be conducted at a laboratory satisfactory to the Bureau of Ships. Qualification approval may be obtained as specified in 4.3.1 or 4,3.2. 4.3.1 Fittings with wall thickness shown in tables VI and VII. - One sample size 4 inch tee fitting with the dipensions s
20、hown in tables II through V and the wall thickness shown in tables VI and VI1 shall be satisfactorily burst tested in accordance-with the requirements of ASA 16.9. Manufacturers production drawings with a report of the burst test results for the size 4 inch tee fitting and the manufacturers producti
21、on drawings for all other sizes for which qualification approval is desired shall be forwarded to the Bureau of Ships for approval and retention. 4.3.2 Fittings with wall thickness shown in table II. - One sample fitting of each type and each she and wall thickness shown in tables II thrmgh V shall
22、be burst tested in accordance with the requirements of ASA s16;9 In the case of reducing fittings a satisfactory test of a straight fitting which is the same size as the largest connection of the reducing fitting shall eliminate the need of testing. the reducing fittings. Failure of associated test
23、equipment, such as connect-lrxg piping below -the burst test pressure, shall require retesting. The following data shall be submitted to the Bureau of Ships for approval in con- nection with the burst tests: Application for Qualification tests shall be made in accordance with “Provisions Governing Q
24、ualification“ (see 6.3 and 6.3.1). - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24202 47 7779906 0444002 4 MIL-F-24202( SHIPS) (a) Burst test results for each sample fitting, including a complete history of the material and strength charac
25、teristics of the fittings that were tested. (b)- Dimensional history of the sample design fitting including the design sketch of the unit. (c) Manufacturers production drawings which show al1 pertinent dimensions taken from the sample fittings (as minimum) against which each fitting manufacturect sh
26、all be checked by the manufacturers inspection department. 4.4 Quality conformance inspection. 4.4.1 Lot. - All fittings of the same type and size offered for delivery at one timeshall be considered a lot for the purpose of sampling. 4.4.2 Sampling for visual and dt-medsional examination. - A random
27、 sample of fittings shall be selected from each lot in accordance with table I for the examination specified in 4.4.3. If the number of defective fittzngs in any sample exceeds the acceptance number for that sample the lot represented by the sample shall not be offered for delivery. Table I - Sampli
28、ng for visu81 and. dimensional examnation Number of fittings in Nonconforming or defective fittings Number of fittings in lot Rejection No Acceptance No. sample 1 to 5 2 1 20 51 to 150 1 O 5 , 6 to 50 1 O All 151 to 280 32 2 3 281 to. 500 6 5 80 501 to 1200 4 3 50 . 1.201 to 3200 125 7 8 3201 and up
29、 , 200 11 10 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-47 MIL-F- 24202( SHI PS) 4.4.3 Visual and dimensional examination. - Each of the sample fittings selected in accordance with 4.4.2 shall be visually and dimensionally examined to verify c
30、ompliance with all the requirements of this specification not involving tests qd with the approved drawings. As a minimum, each sample fitting shall be examined for adequate thickness at the locations shown on figures 11 through 15 and delinated by “X“. Each section so marked shall have the thicknes
31、s checked at four locations around the circumference, 90 degrees apart except for the measure- ment of the crotches. For tee crotches, the measurement shall be taken as shown on figure 13. The numbers shown on figure 13 indicate the number and location of inspection points. 4.4.4 Nondestructive insp
32、ection.- 4.4.4.1 Dye penetrant inspection. - Dye penetrant inspection shall be performed in accordance with MIL-STD-. Dye penetrant inspection shall be conducted as folbows: (a) Butt weld end preparation - All sizes (b) Ekternal surfaces - All sizes (c) Internal surfaces - 2 inches and above. All de
33、fects in butt weld preparation found when dye penetrant inspected must be removed prior to acceptance. Only linear defects, as defined in MIL-STD-798, must be removed from other surfaces prior to acceptance. Repair welding-shall be in accordance with section 7 of MIL-STD-. 4.4.4.2 Radiographic inspe
34、ction. - All welds shall be 100 percent radiographed in accordance with section 7 of MIL-STD 798. Acceptance criteria shall be in accordance with the requirements of section 7 of MIL-STD-798. 4.5 Material control - All manufacturers producing these fittings shall have a material and control system i
35、n accordance with section 9 of mL-STD-798. 4.6 Material identification. - Material identification shall be in accordance with section 10 of MIL-STD-798. 5. PREPARATION FOR DELIVERY 5.1 Domestic shipment and early equipment installation.- 5.11 Preservation and packaging. - Preservation and packaging
36、.which may be the suppliers comercial practice shall be sufficienk to affort adequate protection against corrosion, deterioration and physical damage during shipment from the supply source to the using activity and until- early installation. Weld end preparation areas shall be protected from- damage
37、 during shipment. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24202 Y7 W q979706 04YYOOY B D * MIL-F-24202( SHIPS) 5.1.1.1 Packing. Packing shall be accomplished in a manner which will insure acceptance by common carrier and will afford p
38、rotection against physical or mechanical damage during direct shipment from the supply source to the using activity for early installation. The shipping containers or method of packing shall conform to the Uniform Freight Classification Ratings, Rules and Regulations or other carrier regulations as
39、applicable to the mode of transportation and may conform to the suppliers commercial practice. 5.1.1.2 Marking - Shipment marking information shall be provided on interior packages and exterior shipping containers in accordance with the contractors commercial practice, The information shall include
40、nomenclature, Federal Stock Number or manufacturers part number, con-t;ract or order number, contractors name and destination. 5.2 mestic shipment .and storage. or averse-as shipment. - The requirements and levels of preservation, packaging, packing md marking for shipment shall be specified by the
41、procuring activity (see 6.2). (5.2.1 The following provides various levels of protection during domestic shipment and storage or overseas shipment, which may be required wheh procurement is made. 5.2.1.1 .fiese.rvation, e. pack - Fittings shall be preserved Md packaged level A or G in accordance wit
42、h MIL-I-3. 5.2.1.2 Packing. - Pittings shall be packed by level A, B or C in accordance witn MIL-V-3. 5.2.1.3 Marking. - In adaition to any special marking required, interior packages and exterior shipping containers shall be marked in accordhce with, MIL-STD-129.) 6. NQTEs 6.1 Intended use.- Nttihg
43、s covered by this specification are intended primarily for shipboard water and gas service, 6.2 Ordering data. - Procureaent documents should specify the following: I a) !l!ikle, number arid date of thSs Spe5. 5-kJ2. . -I . .5:1/? . -5 - I .6 X“. 3 5-1/2 ._ .:. .6 z7 4 a 5-112 . 12 Provided by IHSNo
44、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-24202 (SHIPS ) Table IV - Concentric and eccentric reducer dimensions (all dimensions are in inches ) (Cont d) I IPS H 14 x 10 14 x 6 13 14 x 8 13 14 16 x 14 13 16 X 12 14 16 X 10 14 Provided by IHSNot for ResaleN
45、o reproduction or networking permitted without license from IHS-,-,-MIL-F-24202 47 777770b 0444030 3 MIL-P-24202( SHIPS) L4 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-liable V - Redcing tee dimensions (all dimensions are in inches) (Conk d) IP
46、S M 16 X 16 X 12 I 11-5/8 16 X 16 X io I X 3-1/2 1 3 8x4 , 496 8x5 i I .523 8x6 I 549 8x8 i .630 .351 6x2 * 363- G x 2-1/2 378 6x3. 390 “ All dimensions are in inches. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Size &ln x branch Crotch mihimum 8
47、 x 3 I .h72 -10 x 10 ,710 10 x 8 I .670 . 90 x G 589, lo x 5 1 565 10 x 4 .540 - 12 x 12 ,825 i2 x 10 805 12 x 8 -760 12 x 6 ,680 12 x 5 I 660 All dimensions are in inches Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-F-24202 47 W 9799706 0444
48、034 O W: MIL-F-24202( SHI=,) Table VI1 - Elbow and return bend crotch thickness 1 Thickness Size I Short radius I Long radius 5 .245 277- 8 ,405 .610 708 16 . ,623 14 496 572 12 .426 . h82 10 ,353 ,327 ,262 I Dimensions are in inches I - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 2.4 3 3 2.4 I 4 W8501 Figure 1 - Prohibited 4 weld locations SI48802 NOTE: For other dimensions see table II. Figure 2 - Edge preparation for welding - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
