NAVY MIL-P-24691-1987 PIPE AND TUBE CARBON ALLOY AND STAINLESS STEEL SEAMLESS AND WELDED GENERAL SPECIFICATION FOR《整压或焊制不锈碳素钢管的一般规范》.pdf
《NAVY MIL-P-24691-1987 PIPE AND TUBE CARBON ALLOY AND STAINLESS STEEL SEAMLESS AND WELDED GENERAL SPECIFICATION FOR《整压或焊制不锈碳素钢管的一般规范》.pdf》由会员分享,可在线阅读,更多相关《NAVY MIL-P-24691-1987 PIPE AND TUBE CARBON ALLOY AND STAINLESS STEEL SEAMLESS AND WELDED GENERAL SPECIFICATION FOR《整压或焊制不锈碳素钢管的一般规范》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、Beneficial comments (recommendations, 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 Docu
2、ment Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 4710 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited 7 . THIS DOCUMENT CONTAINS /a PAGES. ” MIL-P-24691 23 September 1987 SUPERSEDING (See 6.3) MILITARY SPECIFICATIO
3、N PIPE AND TUBE, CARBON, ALLOY AND STAINLESS STEEL, SEAMLESS AND WELDED, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers carbon, alloy, and stainless steel seamless and welded
4、 pipe and tube. 1.2 Classification. The carbon, alloy and stainless steel seamless and welded pipe and tube shall be of the giades and types specified in the detail specification (see 6.2.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specific
5、ations and stan- dards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and the supplement thereto, cited in the s
6、olicitation. SPECIFICATIONS FEDERAL PPP-B-60 1 - Boxes, Wood, Cleated-Plywood. PPP-B-621 - Boxes, Wood, Nailed and Lock-Corner. PPP-B-1055 - Barrier Material, Waterproofed, Flexible. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-VIL-P-24b71 47 M 77
7、7770b 0275327 L m MIL-P-24691 MILITARY MIL-P-1 16 - Preservation, Methods of. MIL-B-1 2 1 - Barrier Material, Greaseproofed, Waterproofed, MIL-P-24691/1 - Pipe and Tube, Carbon Steel, Seamless. MIL-P-24691/2 - Pipe and Tube, Chromium-Molybdenum Steel, Seam- less. MIL-P-24691/3 - Pipe and Tube, Corro
8、sion-Resistant, Stainless Steel, Seamless or Welded. Flexible. STANDARDS FEDERAL FED-STD-183 - Continuous Identification Marking of Iron and Steel Products. MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-129 - Marking for Shipment and Storage. MIL-STD-271
9、 - Requirements for Nondestructive Testing Methods. MIL-STD-792 - Identification Marking Requirements for Special Purpose Components. (Copies of specifications and standards required by contractors in connec- tion with specific acquisition functions should be obtained from the contracting activity o
10、r as directed by the contracting activity.) 2.2 Other 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 1isted.in the Issue of the DoDISS specified in
11、 the solicitation. Unless otherwise specified, the 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 NATIONAL STANDARDS INSTITUTE (ANSI) B36.10 - Welded and Seamless Wrought Steel Pipe. (Applica
12、tion for copies otherwise, this test may be conducted in one circumferential direction only. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-24691 47 m 9999906 0275334 5 MIL-P-24691 4.5.3.2 Calibration. Pipe and tube shall be ultrasonically
13、tested at a frequency and wave angle capable of detecting inside and outside surface discon- tinuities and subsurface defects. The calibration standard shall be made from ultrasonically defeet-free pipe of the same type, wall thickness, and od as the pipe to be tested. This standard shall contain tw
14、o longitudinal notches, one on the inside surface (except for pipe less than 1/2 inch od) and one on the outside surface sufficiently separated that readily distinguishable individual indications are obtainable from each notch. The notches shall have a depth equal to 5 percent of the wall thickness
15、or 0.005 inch, whichever is greater; the notch lengths shall not exceed 1/2 inch for wall thicknesses 0.065 inch and less, and shall not exceed 1 inch for wall thicknesses greater than 0.065 inch. The notch which produces the smaller indication shall be adopted as the the indication from the calibra
16、tion standard is at least 50 percent but less than 100 percent of full screen height or of the initial ultrasonic pulse, whichever is closer to the calibration indications. These settings shall be made under identical conditions of scanning speed, couplant, and search unit alignment with respect to
17、the pipe and using the same search unit and the same test fixturing as will be used in quality conformance testing of the pipes. = calibration standard. Ult,rasonic instrument settings shall be made such that 4.5.3.2.1 Recalibration. During quality conformance testing, any realign- ment of the searc
18、h unit with respect to the pipe, or any change in search unit, couplant, instrument settings, or scanning speed from that used for calibration shall require recalibration. 4.5.3.2.2 Test method. The tube, the search unit, or both the tube and the search unit shall be moved uniformly during testing i
19、n such a manner that the search unit motion relative to the pipe describes a helix concentric with the tube so that each pass of the scanning crystal overlaps the previous pass by not less than 20 percent of the width of the crystal. This scanning shall be done at the same couplant, search unit alig
20、nment and instrument settings as were used during calibration. 4.5.4 Rejection. Any pipe or tube which produces an indication equal to or greater than 100 percent of the indication from the calibration standard shall be rejected. 4.6 Inspection of packaging. Sample packages and packs, and the inspec
21、tion of the preservation-packaging, packing and marking for shipment and storage shall be in accordance with the requirements of section 5 and the documents specified therein. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-24b7L 47 m 777770b
22、 0275335 7 m MIL-P-24691 5. PACKAGING (The packaging requirements specified herein apply only for direct Govern- ment acquisition.) 5.1 Preservation and packagine Preservation and packaging, shall be level A or C as specified (see 6.2.1). 5.1.1 Level A. Cleaning, drying and preservation-packaging sh
23、all conform to the applicable processes, procedures and methods of MIL-P-116. (a) Carbon steel pipe or tube shall be coated inside and out with (b) Stainless steel pipe or tube shall be unit protected in accor- type P-19 preservative in accordance with method I of MIL-P-116. dance with method III of
24、 MIL-P-116. 5.1.2 Level C. Preservation-packaging shall afford protection against corrosion, deterioration and physical damage during shipment from the supply source to the first receiving activity for immediate use. The coutractors normal preservation-packaging methods may be utilized when such mee
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