ASTM B626-00

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: B 626 – 00 An American National Standard
Standard Specification for
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Welded Nickel and Nickel-Cobalt Alloy Tube
This standard is issued under the fixed designation B 626; 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 Check Analysis Limits for Nickel, Nickel Alloys and
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Cobalt Alloys
1.1 This specification covers welded tubes made from the
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E 8 Test Methods for Tension Testing of Metallic Materials
nickel and nickel-cobalt alloys (UNS N10001, UNS N10242,
E 29 Practice for Using Significant Digits in Test Data to
UNS N10665, UNS N12160, UNS N10629, UNS N10624,
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Determine Conformance with Specifications
UNS N10675, UNS N10276, UNS N06455, UNS N06007,
E 55 Practice for Sampling Wrought Nonferrous Metals and
UNS N06975, UNS N08320, UNS N06985, UNS N06002,
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Alloys for Determination of Chemical Composition
UNS N06022, UNS N06030, UNS N06058, UNS N06059,
E 426 Practice for Electromagnetic (Eddy-Current) Exami-
UNS N06200, UNS N06210, UNS N08031, UNS R30556,
nation of Seamless and Welded Tubular Products, Austen-
UNS N06230, UNS N06686, and UNS R20033)* listed in
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itic Stainless Steel and Similar Alloys
Table 1 intended for heat exchanger and condenser tubes and
E 1473 Test Methods for Chemical Analysis of Nickel,
tubes for general corrosive service for heat-resisting applica-
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Cobalt, and High-Temperature Alloys
tions.
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1.2 This specification covers tube ⁄8 to 3 ⁄2in. (3.2 to 88.9
3. Ordering Information
mm) in outside diameter and 0.015 to 0.148 in. (0.41 to 3.7
3.1 It is the responsibility of the purchaser to specify all
mm) inclusive, in wall thickness.
requirements that are necessary for the safe and satisfactory
1.3 Five classes of tube are covered as follows:
performance of material ordered under this specification.
1.3.1 Class IA—Welded, sized, solution annealed, and non-
Examples of such requirements include, but are not limited to
destructively tested in accordance with 10.5.1.
the following:
1.3.2 Class IB—Welded, sized, and solution annealed.
3.1.1 Alloy (Table 1),
1.3.3 Class IIA—Welded, cold worked, solution annealed,
3.1.2 Class (see 1.3),
and nondestructively tested in accordance with 10.5.1.
3.1.3 Quantity (feet or number of lengths),
1.3.4 Class IIB—Welded, cold worked, and solution an-
3.1.4 Size (outside diameter and average wall thickness),
nealed.
3.1.5 Length (cut or random),
1.3.5 Class III—Welded, cold worked, solution annealed,
3.1.6 Certification—State if certification or a report of test
and nondestructively tested in accordance with 10.5.2.
results is required (Section 15),
1.4 All tubes shall be furnished in the solution annealed and
3.1.7 Purchaser Inspection—State which tests or inspec-
descaled condition. When atmosphere control is used, descal-
tions are to be witnessed (Section 13),
ing is not necessary.
3.1.8 Ends—Plain ends cut and deburred will be furnished,
1.5 The values stated in inch-pound units are to be regarded
unless otherwise specified, and
as the standard. The values given in parentheses are for
3.1.9 Samples for Product (Check) Analysis—State whether
information only.
samples shall be furnished (see 9.2.2).
2. Referenced Documents
4. Materials and Manufacture
2.1 ASTM Standards:
4.1 The tubes shall be made from flat-rolled alloy by an
B 880 Specification for General Requirements for Chemical
automatic welding process with no addition of filler metal.
4.2 Subsequent to welding and prior to final heat treatment,
Class II and Class III tubes shall be cold worked either in both
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This specification is under the jurisdiction of ASTM Committee B02 on
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Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 02.04.
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B02.07 on Refined Nickel and Cobalt and Their Alloys. Annual Book of ASTM Standards, Vol 03.01.
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Current edition approved May 10, 2000. Published June 2000. Originally Annual Book of ASTM Standards, Vol 14.02.
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published as B 626 – 77. Last previous edition B 626 – 99a. Annual Book of ASTM Standards, Vol 03.05.
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* New designations established in accordance with ASTM E 527 and SAE Annual Book of ASTM Standards, Vol 03.03.
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J1086, Practice for Numbering Metals and Alloys (UNS). Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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B 626
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TABLE 1 Chemical Requirements
Composition Limits, %
Ni Cr Mo Fe W C Si Co Mn V P S Ti Cu Cb Al Zr La N B Cb Ta Ni+ Mg
max max max (Nb) (Nb) Mo
+Ta
Ni-Mo Alloys
A
N10001 remainder 1.0 26.0- 4.0-6.0 . 0
...