ASTM B167-23

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B167 − 18 B167 − 23
Standard Specification for
Nickel-Chromium-Aluminum Alloys (UNS N06699), Nickel-
Chromium-Iron Alloys (UNS N06600, N06601, N06603,
N06690, N06693, N06025, N06045, and N06696), Nickel-
Chromium-Cobalt-Molybdenum Alloy (UNS N06617), Nickel-
Iron-Chromium-Tungsten Alloy (UNS N06674), Alloys, Nickel-
Chromium-Iron Alloys, Nickel-Chromium-Cobalt-
Molybdenum Alloy, Nickel-Iron-Chromium-Tungsten Alloy,
and Nickel-Chromium-Molybdenum-Copper Alloy (UNS
N06235) Seamless Pipe and Tube
This standard is issued under the fixed designation B167; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification covers nickel-chromium-aluminum alloys (UNS N06699), nickel-chromium-iron alloys (UNS N06600,
N06601, N06603, N06690, N06693, N06025, N06045, and N06696), nickel-chromium-cobalt-molybdenum alloy (UNS
N06617), nickel-iron-chromium-tungsten alloy (UNS N06674), and nickel-chromium-molybdenum-copper alloy (UNS N06235)
in cold-worked annealed, hot-worked annealed, and hot-finished seamless pipe and tube intended for general corrosion resistant
and heat resistant applications.
1.2 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.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section 13, of this specification: 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, health, and environmental practices, and
determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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 Dec. 1, 2018Nov. 1, 2023. Published January 2019November 2023. Originally approved in 1941. Last previous edition approved in 20162018
as B167 – 11 (2016).B167 – 18. DOI: 10.1520/B0167-18.10.1520/B0167-23.
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-167 in Section II of that Code.
Designation established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B167 − 23
2. Referenced Documents
2.1 ASTM Standards:
B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube
B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys
E8/E8MB899 Test Methods for Tension Testing of Metallic MaterialsTerminology Relating to Non-ferrous Metals and Alloys
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E38 Methods for Chemical Analysis of Nickel-Chromium and Nickel-Chromium-Iron Alloys (Withdrawn 1989)
E112 Test Methods for Determining Average Grain Size
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
2.2 Federal Standards:
Fed. Std. No. 102 Preservation, Packaging and Packing Levels
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
Fed. Std. No. 182 Continuous Identification Marking of Nickel and Nickel-Base Alloys
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 average diameter, n—the average of the maximum and minimum outside diameters, as determined at any one cross section
of the pipe or tube.
3.1.2 pipe, n—tube conforming to the particular dimensions commercially known as pipe sizes. See Table X2.1.
3.1.3 seamless pipe or tube, n—a pipe or tube produced with a continuous periphery in all stages of the operations.
3.1.4 tube, n—a hollow product of round or any other cross section having a continuous periphery.
3.1 Definitions:
3.1.1 The terms and definitions of Terminology B899 apply.
4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all requirements that are necessary for the safe and satisfactory performance
of material ordered under this specification. Examples of such requirements include, but are not limited to, the following:
4.1.1 Alloy Name or UNS Number—see Table 1,
4.1.2 ASTM Designation, including year of issue,
4.1.3 Condition (see Appendix X3X2),
4.1.4 Finish (see Appendix X3X2),
4.1.5 Dimensions:
4.1.5.1 Tube—Specify outside diameter and nominal or minimum wall,
4.1.5.2 Pipe—Specify standard pipe size and schedule,schedule (see Appendix X1),
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.
Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
B167 − 23
A
TABLE 1 Chemical Requirements
Composition Limits, %
Element
Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy Alloy
N06025 N06045 N06600 N06601 N06603 N06617 N06674 N06690 N06693 N06696 N06699 N06235
B B B B B B B
Nickel remainder 45.0 min 72.0 min 58.0–63.0 remainder 44.5 min remainder 58.0 min remainder remainder remainder remainder
Chromium 24.0–26.0 26.0–29.0 14.0–17.0 21.0–25.0 24.0–26.0 20.0-24.0 21.5–24.5 27.0–31.0 27.0–31.0 28.0–32.0 26.0-30.0 30.0-32.5
B
Iron 8.0–11.0 21.0–25.0 6.0–10.0 remainder 8.0–11.0 3.0 max 20.0–27.0 7.0–11.0 2.5–6.0 2.0–6.0 2.5 max 1.5 max
B
Iron 8.0–11.0 21.0–25.0 6.0–10.0 remainder 8.0–11.0 3.0 20.0–27.0 7.0–11.0 2.5–6.0 2.0–6.0 2.5 1.5
Manganese 0.15 max 1.0 max 1.0 max 1.5 max 0.15 max 1.0 max 1.50 max 0.5 max 1.0 max 1.0 max 0.50 max 0.3-0.65
Manganese 0.15 1.0 1.0 1.5 0.15 1.0 1.50 0.5 1.0 1.0 0.50 0.3-0.65
Molybdenum . . . . . 8.0–10.0 . . . 1.0–3.0 . 5.0-6.2
Cobalt . . . . . 10.0–15.0 . . . . . 1.0 max
Cobalt . . . . . 10.0–15.0 . . . . . 1.0
Aluminum 1.8–2.4 . . 1.0–1.7 2.4-3.0 0.8-1.5 . . 2.5–4.0 . 1.9-3.0 0.2-0.4
Carbon 0.15–0.25 0.05–0.12 0.15 max 0.10 max 0.20-0.40 0.05-0.15 0.10 max 0.05 max 0.15 max 0.15 max 0.005-0.10 0.02-0.06
Carbon 0.15–0.25 0.05–0.12 0.15 0.10 0.20-0.40 0.05-0.15 0.10 0.05 0.15 0.15 0.005-0.10 0.02-0.06
Copper 0.1 max 0.3 max 0.5 max 1.0 max 0.50 max 0.5 max . 0.5 max 0.5 max 1.5–3.0 0.50 max 3.5-4.0
Copper 0.1 0.3 0.5 1.0 0.50 0.5 . 0.5 0.5 1.5–3.0 0.50 3.5-4.0
Boron . . . . . 0.006 max 0.0005–0.006 . . . 0.008 max .
Boron . . . . . 0.006 0.0005–0.006 . . . 0.008 .
Silicon 0.5 max 2.5–3.0 0.5 max 0.5 max 0.50 max 1.0 max 1.0 max 0.5 max 0.5 max 1.0–2.5 0.50 max 0.2-0.6
Silicon 0.5 2.5–3.0 0.5 0.5 0.50 1.0 1.0 0.5 0.5 1.0–2.5 0.50 0.2-0.6
Sulfur 0.010 max 0.010 max 0.015 max 0.015 max 0.010 max 0.015 max 0.015 max 0.015 max 0.01 max 0.010 max 0.01 max 0.015 max
Sulfur 0.010 0.010 0.015 0.015 0.010 0.015 0.015 0.015 0.01 0.010 0.01 0.015
Titanium 0.1–0.2 . . . 0.1–0.25 0.6 max 0.05–0.20 . 1.0 max 1.0 max 0.60 max 0.5 max
Titanium 0.1–0.2 . . . 0.1–0.25 0.6 0.05–0.20 . 1.0 1.0 0.60 0.5
Niobium . . . . . . 0.10–0.35 . 0.5–2.5 . 0.50 max 1.0 max
C
Niobium . . . . . . 0.10–0.35 . 0.5–2.5 . 0.50 1.0
Phosphorous 0.020 max 0.020 max . . 0.020 max . 0.030 max . . . 0.02 max 0.03 max
Phosphorous 0.020 0.020 . . 0.020 . 0.030 . . . 0.02 0.03
Zirconium 0.01–0.10 . . . 0.01–0.10 . . . . . 0.10 max .
Zirconium 0.01–0.10 . . . 0.01–0.10 . . . . . 0.10 .
Yttrium 0.05–0.12 . . . 0.01–0.15 . . . . . . .
Cerium . 0.03–0.09 . . . . . . . . . .
Nitrogen . . . . . . 0.02 max . . . 0.05 max .
Nitrogen . . . . . . 0.02 . . . 0.05 .
Tungsten . . . . . . 6.0–8.0 . . . . 0.60 max
Tungsten . . . . . . 6.0–8.0 . . . . 0.60
A
Where Maximum, unless a range or minimum is indicated. Where ellipses (.) appear in this table, there is no requirement and the element need neither be analyzed for nor reported.
B
Element shall be determined arithmetically by difference.
C
The terms columbium (Cb) and niobium (Nb) both refer to the same element.

B167 − 23
4.1.5.3 Length—Cut to length or random,
4.1.6 Quantity—Feet or number of pieces,
4.1.7 Hydrostatic Test or Nondestructive Electric Test—Specify type of test (see 7.28.1).
4.1.8 Hydrostatic Pressure Requirements—Specify test pressure if other than required by 13.3.18.2.1,
4.1.9 Samples for Product (Check) Analysis—State whether samples for product (check) analysis should be furnished (see 5.26.2),
4.1.10 Purchaser Inspection—If purchaser wishes to witness tests or inspection of material at place of manufacture, the purchase
order must so state indicating which tests or inspections are to be witnessed (Section 14), and
4.1.11 Small-Diameter Tube and Tube with Specified Wall Thickness 3 % or Less of the Specified Outside Diameter (Converter
Sizes)—See Appendix X1A1.
5. Materials and Manufacture
5.1 Material furnished under this specification shall conform to the applicable requirements of Specification B829 unless otherwise
provided herein.
5.2 Heat treatment of N06674 after cold-working or hot-working shall be solution annealing by heating to 2150 °F (1175 °C)
minimum, followed by quenching in water or rapidly cooling by other means.
6. Chemical Composition
6.1 The material shall conform to the composition limits specified in Table 1.
6.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis
variations in Specification B880.
6. Heat Treatment
6.1 Heat treatment of N06674 after cold-working or hot-working shall be solution annealing by heating to 2150°F (1175°C)
minimum, followed by quenching in water or rapidly cooling by other means.
7. Mechanical Properties and Other Requirements
7.1 Tensile Test—The material shall conform to the tensile properties specified in Table 2.
7.1.1 Tensile properties for material specified as small-diameter tube and tube with specified wall thickness 3 % or less of the
specified outside diameter (converter sizes) shall be as prescribed in Table X1.1.
7.2 Hydrostatic or Nondestructive Electric Test—Each pipe or tube shall be subjected to either the hydrostatic test or the
nondestructive electric test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the
purchase order.
7.2 Grain Size:
7.2.1 Grain size for N06674 shall be 7 or coarser, as determined in accordance with Test Methods E112.
7.2.2 Grain size determinations, to demonstrate compliance with 7.2.1, shall be made on one end of one finished tube from each
lot. See 11.1.2.
B167 − 23
TABLE 2 Mechanical Properties
Tensile
Yield Strength (0.2 % offset), Elongation in 2 in. or 50 mm
Condition and Size Strength, min
min, psi (MPa) or 4D min,%
psi (MPa)
UNS N06025:
Hot-worked annealed 98 000 (680) 39 000 (270) 30
or cold worked
annealed (all sizes)
UNS N06045:
Hot-worked annealed 90 000 (620) 35 000 (240) 35
or cold-worked
annealed (all sizes)
UNS N06600:
Hot-worked or hot-
worked annealed:
5 in. (127 mm) in 80 000 (550) 30 000 (205) 35
outside diameter and
under
Over 5 in. (127 75 000 (515) 25 000 (170) 35
mm) in outside
diameter
Cold-worked
annealed:
5 in. (127 mm) in 80 000 (550) 35 000 (240) 30
outside diameter and
under
Over 5 in. (127 80 000 (550) 30 000 (205) 35
mm) in outside
diameter
UNS N06601:
Cold-worked annealed
or hot-worked
annealed:
All sizes 80 000 (550) 30 000 (205) 30
UNS N06603:
Hot-worked annealed 94 000 (650) 43 000 (300) 25
or cold worked
annealed (all sizes)
UNS N06617:
Cold-worked annealed 95 000 (665) 35 000 (240) 35
or hot-worked
annealed: All sizes
UNS N06674:
Cold-worked annealed 86 000 (590) 34 000 (235) 30
or hot-worked
annealed: All sizes
UNS N06690:
Hot-worked or hot-
worked annealed:
5 in. (127 mm) in 85 000 (586) 30 000 (205) 35
outside diameter
and under
Over 5 in. (127 75 000 (515) 25 000 (170) 35
mm) in outside
diameter
Cold-worked
annealed:
5 in. (127 mm) in 85 000 (586) 35 000 (240) 30
outside diameter and
under
Over 5 in. (127 85 000 (586) 30 000 (205) 35
mm) in outside
diameter
UNS N06693:
Cold-worked annealed 100 000 (690) 50 000 (345) 30
or hot- worked
annealed: 5 in. (127
mm) in outside
diameter and under
UNS N06696
Cold-worked annealed 85 000 (586) 35 000 (240) 30
(all sizes)
UNS N06235
Hot-worked annealed 90 000 (620) 35 000 (240) 35
or cold worked
annealed (all sizes)
UNS N06699
B167 − 23
TABLE 2 Continued
Tensile
Yield Strength (0.2 % offset), Elongation in 2 in. or 50 mm
Condition and Size Strength, min
min, psi (MPa) or 4D min,%
psi (MPa)
Hot-worked annealed 89 000 (610) 35 000 (240) 40
or cold worked
annealed (all sizes)
8. Nondestructive Testing and Examination
8.1 Hydrostatic or Nondestructive Electric Test—Each pipe or tube shall be subjected to either the hydrostatic test or the
nondestructive electric test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the
purchase order.
8.2 Hydrostatic Test—Each pipe or tube with an outside diameter ⁄8 in. (3 mm) and larger and with wall thickness of 0.015 in.
(0.38 mm) and over shall be tested by the manufacturer to an internal hydrostatic pressure of 1000 psi (6.9 MPa) provided that
the fiber stress calculated in accordance with the following 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),
t = minimum wall thickness, in. (or mm), equal to the specified nominal wall minus the permissible minus wall tolerance, or
the specified minimum wall thickness,
D = outside diameter of the pipe or tube, in. (or mm), and
S = allowable fiber stress, for material in the condition (temper) furnished as follows:
Hot-worked or hot-worked annealed: —
UNS N06025 24 000 (165 MPa)
UNS N06045 22 500 (155 MPa)
UNS N06600 20 000 (140 MPa)
UNS N06601 20 000 (140 MPa)
UNS N06603 24 000 (165 MPa)
UNS N06617 23 700 (163 MPa)
UNS N06690 21 200 (146 MPa)
UNS N06674 21 500 (148 MPa)
UNS N06693 25 000 (172 MPa)
UNS N06235 22 500 (155 MPa)
UNS N06699 22 100 (152 MPa)
Over 5 in. outside diameter: —
UNS N06600 16 700 (115 MPa)
UNS N06690 16 700 (115 MPa)
Cold-worked annealed—All sizes: —
UNS N06025 24 500 (169 MPa)
UNS N06045 22 500 (155 MPa)
UNS N06600 20 000 (140 MPa)
UNS N06601 20 000 (140 MPa)
UNS N06674 21 500 (148 MPa)
UNS N06690 21 200 (146 MPa)
UNS N06693 21 200 (146 MPa)
UNS N06696 21 200 (146 MPa)
UNS N06235 22 500 (155 MPa)
UNS N06699 22 100 (152 MPa)
8.2.1 When so agreed upon between the manufacturer and purchaser, pipe or tube may be tested to 1 ⁄2 times the allowable fiber
stress given above.
8.2.2 If any pipe or tube shows leaks during hydrostatic testing, it shall be rejected.
8.3 Nondestructive Electric Test—Each pipe or tube shall be examined with a nondestructive electric test in accordance with
Specification B829.
B167 − 23
9. Dimensions and Permissible Variations
9.1 Diameter, Wall Thickness, and Length—The permissible variations in the outside diameter and wall thickness shall conform
to the permissible variations prescribed in the Permissible Variations for Outside Diameter and Wall Thickness of Seamless
Cold-Worked Pipe and Tube, Permissible Variations for Outside Diameter and Wall Thickness of Hot-Finished Tube, and
Permissible Variations for Outside Diameter and Wall Thickness of Seamless Hot-Worked Pipe tables in Specification B829. The
permissible variations in the length shall conform to the permissible variations prescribed in the Permissible Variations in Length
table in Specification B829.
8.2 Permissible variations for material specified as small-diameter and light-wall tube (converter size) shall conform to the
permissible variations prescribed in Table X1.2.
10. Workmanship, Finish, and Appearance
10.1 The material shall be uniform in quality and temper, smooth, commercially straight, and free of injurious imperfections.
11. Sampling
11.1 Lot Definition:
11.1.1 A lot for chemical analysis shall consist of one heat.
11.1.2 A lot for all other testing shall consist of all material from the same heat, nominal size (excepting length), and condition.
11.1.2.1 Where material cannot be identified by heat, a lot shall consist of not more than 500 lb (227 kg) of material in the same
condition and nominal size (excepting length).
11.2 Test Material Selection:
11.2.1 Chemical Analysis—Representative samples from each lot shall be taken during pouring or subsequent processing.
11.2.1.1 Product (check) analysis shall be wholly the responsibility of the purchaser.
11.2.2 Mechanical and Other Properties—Samples of the material to provide test specimens for mechanical and other properties
shall be taken from such locations in each lot as to be representative of that lot. Test specimens shall be taken from material in
the final condition.
12. Number of Tests
12.1 Chemical Analysis—One test per lot.
12.2 Tension—One test per lot.
11.3 Hydrostatic or Nondestructive Electric Test—Each piece in each lot.
12. Specimen Preparation
12.1 Room-Temperature Tension Specimen—Material shall
...