B677-05 UNS NO8904、UNS NO8925及UNS NO8926无缝管

Designation: B 677 – 05 Standard Specification for UNS N08925, UNS N08354, and UNS N08926 Seamless Pipe and Tube1 This standard is issued under the fixed designation B 677; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope 1.1 This specification covers UNS N08925, UNS N08354, and UNS N08926* seamless, cold-worked or hot-finished pipe and tube intended for general corrosive service. 1.2 ASTM International has adopted definitions whereby some grades, such as UNS N08904 previously in this specifi- cation, were recognized as stainless steels, because those grades have iron as the largest element by mass percent. Such grades are under the oversight of ASTM Committee A01 and its subcommittees. The products of N08904 previously covered in this specification are now covered by Specifications A 269 and A 312. 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as pro- vided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. 2. Referenced Documents 2.1 ASTM Standards: 2 A 269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service A 312 Specification for Seamless, Welded, Heavily Cold Worked Austenitic Stainless Steel Pipes B 829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube E 527 Practice for Numbering Metals and Alloys (UNS) 3. Terminology Definitions 3.1 average diameter, n—the average of the maximum and minimum outside diameters as determined at any one cross section of the tube or pipe. 3.2 pipe, n—seamless tube conforming to the particular dimensions commercially known as standard pipe sizes. 3.3 tube, n—a hollow product of round or any other cross section having a continuous periphery. 4. General Requirements 4.1 Material furnished under this specification shall con- form to the requirements of Specification B 829 unless other- wise provided herein. In the case of conflict, the requirements of this specification shall take precedence. 5. Ordering Information 5.1 It is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this specification. Examples of such requirements include, but are not limited to, the following: 5.1.1 Alloy name or UNS number. 5.1.2 ASTM designation and year of issue. 5.1.3 Finish. 5.1.4 Dimensions: 5.1.4.1 Tube—Outside diameter and the average or mini- mum wall thickness. 5.1.4.2 Pipe—Standard pipe size and schedule. 5.1.4.3 Length, (cut to length or random). 5.1.5 Quantity (feet or number of pieces). 5.1.6 Nondestructive Testing (see 8.2): 1 This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys. Current edition approved June 1, 2005. Published July 2005. Originally approved in 1980. Last previous edition approved in 2004 as B 677 – 04a. * New designation established in accordance with ASTM E 527 and SAE J1086, Recommended Practice for Numbering Metals and Alloys (UNS). 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website. 1 Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. 5.1.6.1 Pressure Requirements—Test pressure if other than required by 8.2.1. 5.1.6.2 Specify if an electric test is to be performed. 5.1.7 Ends—Plain ends cut and deburred will be furnished. If threaded ends or ends beveled for welding are desired, give details. 5.1.8 Certification—State if certification is required. 5.1.9 Samples for Product (Check) Analysis—State whether samples for product (check) analysis should be furnished (see 7.2). 5.1.10 Purchaser Inspection—If the purchaser wishes to witness tests or inspection of material at the place of manu- facture, the purchase order must so state, indicating which tests or inspections are to be witnessed. 6. Materials and Manufacture 6.1 The material shall be supplied in the solution-treated condition. NOTE 1—The recommended heat treatment shall consist of heating to a temperature of 2010 to 2100°F (1100 to 1150°C) for UNS N08925 and UNS N08926, followed by quenching in water or rapid cooling by other means. 7. Chemical Composition 7.1 The material shall conform to the requirements as to chemical composition prescribed in Table 1. One test is required for each lot as defined in Specification B 829. 7.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis variations per Specification B 829. 8. Mechanical Properties and Other Requirements 8.1 Mechanical Properties—The material shall conform to the mechanical properties prescribed in Table 2. One test is required for each lot as defined in Specification B 829. 8.2 Nondestructive Tests: Each pipe and tube shall be subjected to either a hydrostatic test or a nondestructive electric test as described in Specifica- tion B 829. The purchaser may specify which test is to be used. 8.2.1 Hydrostatic Test: The fiber stress for the purpose of calculating the hydrostatic test pressure shall be 20 000 psi (138 Mpa). 9. Dimensions and Permissible Variations 9.1 The permissible variations in dimensions set forth in Specification B 829 shall apply. 10. Keywords 10.1 N08925; N08354; N08926; seamless pipe; seamless tube ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. TABLE 1 Chemical Requirements Element UNS N08925 UNS N08926 UNS N08354 Carbon, max 0.020 0.020 0.030 Manganese, max 1.0 2.00 1.00 Phosphorus, max 0.045 0.03 0.030 Sulfur, max 0.030 0.01 0.010 Silicon, max 0.50 0.5 1.00 Nickel 24.0 to 26.0 24.00 to 26.00 22.0 to 24..0 Chromium 19.0 to 21.0 19.00 to 21.00 34.0 to 36.0 Molybdenum 6.0 to 7.0 6.0 to 7.0 7.0 to 8.0 Copper 0.8 to 1.5 0.5 to 1.5 ... Nitrogen 0.1 to 0.2 0.15 to 0.25 0.17 to 0.24 Iron balance balance balance TABLE 2 Mechanical Properties of Pipe and Tube Alloy Temper Tensile Strength, min, psi (MPa) Yield Strength, 0.2 % offset, min, psi (MPa) Elongation in 2 in. or 50 mm (or 4D), min, % UNS N08925 solution annealed 87 (600) 43 (300) 40 UNS N08354 solution annealed 93 (640) 43 (295) 40 UNS N08926 solution annealed 94 (650) 43 (295) 35 B 677 – 05 2 This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website (www.astm.org). B 677 – 05 3