1、Designation: B 759 00 (Reapproved 2006)Standard Specification forNickel-Chromium-Molybdenum-Tungsten Alloys (UNSN06110) Pipe and Tube1This standard is issued under the fixed designation B 759; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification2cover nickel-chromium-molybdenum-tungsten alloys (UNS N06110)3in the form of
3、cold-worked seamless pipe and tube in the conditions shown inTable 1.1.2 Hot-worked material is available. Properties and per-missible tolerances are to be agreed upon between the manu-facturer and purchaser.1.3 The values stated in inch-pound units are to be regardedas the standard. The SI units in
4、 parentheses are provided forinformation only.1.4 The following precautionary caveat pertains only to thetest method portion, Section 8, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof
5、this standard to become familiar with all hazards includingthose identified in the appropriate Material Safety Data Sheet(MSDS) for this product/material as provide by the manufac-turer, to establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations pr
6、ior touse.2. Referenced Documents2.1 ASTM Standards:3E 8 Test Methods for Tension Testing of Metallic MaterialsB 829 Specification for General Requirements for Nickeland Nickel Alloys Seamless Pipe and TubeE 426 Practice for Electromagnetic (Eddy-Current) Exami-nation of Seamless and Welded Tubular
7、Products, Austen-itic Stainless Steel and Similar Alloys3. Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for the safe and satisfactoryperformance of material ordered under this specification.Examples of such requirements include, but
8、are not limited to,the following:3.1.1 Alloy name or UNS number.3.1.2 ASTM Designation.3.1.3 Condition.3.1.4 Finish.3.1.5 Dimensions.3.1.5.1 TubeSpecify outside diameter and nominal orminimum wall.3.1.5.2 PipeSpecify standard pipe size and schedule.3.1.5.3 LengthCut to length or random.3.1.6 Quantit
9、yFeet (or metres) or number of pieces.3.1.7 Hydrostatic Pressure RequirementsSpecify testpressure if other than required by 8.1.3.1.8 Certification State if certification is required.3.1.9 Samples for Product (Check) AnalysisState whethersamples for product (check) analysis should be furnished (see4
10、.2).3.1.10 Purchaser InspectionIf purchaser wishes to wit-ness tests or inspection of material at place of manufacture, thepurchase order must so state indicating which tests or inspec-tions are to be witnessed.3.1.11 Small-Diameter and Light-Wall Tube (ConverterSizes).4. Chemical Composition4.1 The
11、 material shall conform to the composition limitsspecified in Table 2.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved June
12、1, 2006. Published June 2006. Originallyapproved in 1986. Last previous edition approved in 2000 as B 759 - 00.2For ASME Boiler and Pressure Vessel Code application, see related Specifi-cation SB-167 in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orc
13、ontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.TABLE 1 Mechanical PropertiesConditionTensileStrength,min, ksi(MPa)Yield Strength(0.2 % offset),min, ksi(MPa)Elongationin 2 in. or50 m
14、m (or4D), min,%Cold-worked annealed 95 (655) 45 (310) 601Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variati
15、ons in Specification B 829.5. Mechanical and Other Properties5.1 Mechanical PropertiesThe material shall conform tothe tensile properties specified in Table 2.5.2 Pressure and Nondestructive Electric TestEach pipeand tube shall be subjected to either a pressure test or thenondestructive electric tes
16、t at the manufacturers option. Thepurchaser may specify which test is to be used.5.2.1 Any leaking areas may be cut out and the pipe retestedas above.5.2.2 Test signals produced by imperfections such as thefollowing, may be judged as injurious or noninjurious, depend-ing on visual observation of the
17、ir severity or the type of signalthey produce on the testing equipment used, or both.5.2.2.1 Dinges,5.2.2.2 Straightener marks,5.2.2.3 Scratches,5.2.2.4 Steel die stamps, and5.2.2.5 Stop marks.6. Sampling6.1 Test Material Selection:6.1.1 Chemical AnalysisRepresentative samples fromeach lot shall be
18、taken during pouring or subsequent process-ing.6.1.1.1 Product (check) analysis shall be wholly the respon-sibility of the purchaser.7. Number of Tests7.1 Chemical AnalysisOne test per lot.7.2 TensionOne test per lot.7.3 Pressure and Nondestructive Electric TestEach tubeshall be subjected to either
19、a pressure test or the nondestructiveelectric test at the manufacturers option. The purchaser mayspecify which test is to be used.8. Test Methods8.1 Hydrostatic Test Each pipe or tube with an outsidediameter18 in. (3 mm) and larger and with wall thickness of0.015 in. (0.38 mm) and over shall be test
20、ed by the manufac-turer to an internal hydrostatic pressure of 1000 psi (6.9 MPa)provided that the fiber stress calculated in accordance with thefollowing equation does not exceed the allowable fiber stress S,indicated as follows:P 5 2St/D (1)where:P = hydrostatic test pressure, psi (or MPa),S = all
21、owable fiber stress, for material in the condition(temper) furnished as follows: Cold worked annealed:30 000 psi (242 MPa)t = minimum wall thickness, in. (or mm), equal to thespecified nominal wall minus the permissible minuswall tolerance, or the specified minimum wall thick-ness, and,D = outside d
22、iameter of the pipe or tube, in. (or mm).8.1.1 When so agreed upon by the manufacturer and thepurchaser, pipe or tube may be tested to 112 times theallowable fiber stress given in 8.1.8.2 Pneumatic Test:8.2.1 With no foreign material or moisture on the internalsurface, pressurize the tube internally
23、 to 150 psi (1034 Pa)minimum with uncontaminated compressed air while submerg-ing it in water of a clarity that permits unobstructed examina-tion of the tube.8.2.2 The tube shall be well-lighted, preferably by under-water illumination.8.2.3 Correct any evidence of air leakage of the pneumaticcouplin
24、gs prior to testing.8.2.4 After holding the pressure for not less than 5 s after thesurface of the water has become calm, inspect the entire lengthof the tube.8.3 Nondestructive Electric Test:8.3.1 Test each tube with a nondestructive electric test inaccordance with Practice E 426. It is the intent
25、of this test toreject tube containing injurious defects.8.3.2 The calibration tube shall contain, at the option of theproducer, either of the following discontinuities to establish aminimum sensitivity level for rejection.8.3.3 Drilled Hole Drill a hole not larger than 0.031 in.(0.79 mm) diameter ra
26、dially and completely through the tubewall, taking care to avoid distortion of the tube while drilling.8.3.4 Transverse Tangential NotchUsing a round tool orfile with a14 in. (6.4 mm) diameter, file or mill a notchtangential to the surface and transverse to the longitudinal axisof the tube. Said not
27、ch shall have a depth not exceeding 1212% of the specified wall thickness of the tube or 0.004 in.(0.102 mm), whichever is greater.TABLE 2 Chemical RequirementsElementCompositionLimits, %C 0.15 maxMn 1.0 maxSi 1.0 maxP 0.015 maxS 0.015 maxCr 28.0 min/33.0 maxCb 1.0 maxW 1.0 min/4.0 maxMo 9.0 min/12.
28、0 maxFe 1.0 maxAl 1.0 maxTi 1.0 maxNiA51.0 minCu 0.50 maxAElement shall be determined arithmetically by difference.B 759 00 (2006)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard
29、are expressly advised that determination of the validity of any such patent rights, and the riskof 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 andif no
30、t revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which
31、you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.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 aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B 759 00 (2006)3
