ASTM B622 Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
1. ASTM B622 Scope
1.1 This specification 2 covers seamless pipe and tube of nickel and nickel-cobalt alloys (UNS N10001, UNS N10242, UNS N10665, UNS N12160, UNS N10675, UNS N10276,UNS N06455, UNS N06007, UNS N08320, UNS N06975, UNS N06002, UNS N06985, UNS N06022, UNS N06035, UNS N06044, UNS N08135, UNS N06255, UNS N06058, UNS N06059, UNS N06200, UNS N10362, UNS N06030, UNS N08031, UNS R30556, UNS N08535, UNS N06250,
UNS N06060, UNS N06230, UNS N06686, UNS N10629, UNS N06210, UNS N10624, and UNS R20033)
1.2 Pipe and tube shall be supplied in the solution annealed and descaled condition. When atmosphere control is used,
descaling is not necessary.
1.3 This specification is limited to tubes up to and including 3.5 in. (88.9 mm) outside diameter.
1.4 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.
1.5 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
Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. ASTM B622 Referenced Documents
2.1 ASTM Standards:
B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube
E8 Test Methods for Tension Testing of Metallic Materials
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. ASTM B622 Terminology
3.1.1 average diameter, n—the average ofthe maximum and minimum outside diameters, or the maximum and minimum
inside diameters, as determined at any cross section ofthe tube.
3.1.2 pipe, n—seamless tube conforming to the particular dimensions commercially known as standard pipe sizes.
3.1.3 tube, n—a hollow product of round or any other cross section having a continuous periphery.
4. ASTM B622 General Requirements
4.1 Material furnished under this specification shall conform to the applicable requirements of Specification B829
unless otherwise provided herein.
5. ASTM B622 Ordering Information
5.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the material ordered under
this specification. Examples of such requirements include, but are not limited to the following:
188.8.131.52 Tube—Outside diameter, minimum or average wall thickness, and length.
184.108.40.206 Pipe—Standard pipe size and schedule (AppendixX2).
5.1.3 Ends—Plain ends cut and deburred will be furnished.
5.1.4 Certification—State if certification or a report of test results is required (Section 15).
5.1.5 Samples for Check Analysis—State whether samples for check analysis should be furnished.
5.1.6 Purchaser Inspection—If the purchaser wishes to witness tests or inspection of material at the place of
manufacture, the purchase order must so state, indicating which tests or inspections are to be witnessed (Section 14).
6. ASTM B622 Chemical Composition
6.1 The material shall conform to the composition limits specified in Table 1.
6.2 If a product (check) analysis is made by the purchaser, the material shall conform to the requirements specified in
Table 1 subject to the permissible tolerances in accordance with Specification B829.
7. ASTM B622 Mechanical Properties
7.1 The mechanical properties of the material at room temperature shall conform to those shown in Table 2.
8. Hydrostatic Test or Non-Destructive Electric Test
8.1 Each pipe or tube shall be tested by the manufacturer by either hydrostatic or a non-destructive electric test in accordance with Specification B829. Hydrostatic testing at a pressure greater than 1000 psi may be performed upon agreement between the purchaser and manufacturer or at the option of the manufacturer provided that the allowable fiber stress per Specification B829 is not exceeded.
9. ASTM B622 Weight
9.1 For calculation of mass or weight, the following densities shall be used:
10. ASTM B622 Sampling
10.1 Lots forChemical Analysis andMechanical Testing are as defined in Specification B829.
10.2 Sampling ofChemical Analysis:
10.2.1 A representative sample shall be taken from each lot during pouring or subsequent processing.
10.2.2 Product (check) analysis shall be wholly the responsibility of the purchaser.
10.3 Sampling for Mechanical Testing:10.3.1 A representative sample shall be taken from each lot of finished material.
11. ASTM B622 Number of Tests and Retests
11.1 Chemical Analysis—One test per lot.
11.2 Tension Test—One test per lot.
11.3 Retests—If the specimen used in the mechanical test of any lot fails to meet the specified requirements, two additional specimens shall be taken from different sample pieces and tested. The results of the tests on both of these specimens shall meet the specified requirements.
12. ASTM B622 Specimen Preparation
12.1 Tension test specimens shall be taken from material after final heat treatment and tested in the direction of fabrication.
12.2 Whenever possible, all pipe and tube shall be tested in full tubular size. When testing in full tubular size is not
possible, longitudinal strip specimens, or the largest possible round specimen prepared in accordance with Test Methods E8, shall be used.
13. ASTM B622 Test Methods
13.1 The chemical composition and mechanical properties of the material as enumerated in this specification shall be
determined in accordance with the methods in Specification B829.
14. ASTM B622 Inspection
14.1 Inspection of the material shall be in accordance with this specification and agreements between the manufacturer
and the purchaser as part of the purchase contract.
15. ASTM B622 Certification
15.1 When specified in the purchase order or contract, a manufacturer’s certification shall be furnished to the purchaser stating that material has been manufactured, tested, and inspected in accordance with this specification, and that the test results on representative samples meet specification requirements. When specified in the purchase order or contract, a report of the test results shall be furnished.
16. ASTM B622 Keywords
16.1 seamless pipe; seamless tube; UNS N06002; UNS N06007; UNS N06022; UNS N06030; UNS N06035; UNS N06044; UNS N06058; UNS N06059; UNS N06060; UNS N06200; UNS N06210; UNS N06230; UNS N06250; UNS N06255; UNS N10362; UNS N06455; UNS N06686; UNS N06975; UNS N06985; UNS N08031; UNS N08135; UNS N08320; UNS N08535; UNS N10001; UNS N10242; UNS N10276; UNS N10624; UNS N10629; UNS N10665; UNS N10675; UNS N12160; UNS R20033; UNS R30556