ASTM B668-14(2019)
(Specification)Standard Specification for UNS N08028 and N08029 Seamless Pipe and Tube
Standard Specification for UNS N08028 and N08029 Seamless Pipe and Tube
ABSTRACT
This specification covers the standard requirements for UNS N08028 seamless cold-finished or hot-finished pipe and tube intended for general corrosive services. The pipe and tube shall be furnished in the solution-annealed condition and heat treated at a certain range of temperature by subsequent quenching in water or rapidly cooling by other means. Chemical and product analysis shall be conducted on each lot of material as described in a referenced ASTM document and shall conform to the required chemical composition for carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper, and iron. The material shall also be subjected to tension test, flaring test, and hydrostatic or nondestructive test to determine its mechanical properties which shall be in conformity with the tensile strength, yield strength, and elongation requirements.
SCOPE
1.1 This specification covers UNS N08028 and N08029 seamless cold-finished or hot-finished pipe and tube intended for general corrosive service. The general requirements are covered in Specification B829.
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 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 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.
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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.
Designation:B668 −14 (Reapproved 2019)
Standard Specification for
UNS N08028 and N08029 Seamless Pipe and Tube
This standard is issued under the fixed designation B668; 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.
1. Scope performance of material ordered under this specification.
Examples of such requirements include, but are not limited to,
1.1 This specification covers UNS N08028 and N08029
the following:
seamless cold-finished or hot-finished pipe and tube intended
4.1.1 Alloy name or UNS number,
for general corrosive service. The general requirements are
covered in Specification B829. 4.1.2 ASTM designation and year of issue,
4.1.3 Dimensions:
1.2 The values stated in inch-pound units are to be regarded
4.1.3.1 Outside diameter, minimum or average wall thick-
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only ness (in inches or millimetres, not gage number), and length,
and are not considered standard.
4.1.3.2 Standard pipe size, schedule and length,
1.3 This standard does not purport to address all of the 4.1.4 Quantity (feet or metres, or number of pieces),
safety concerns, if any, associated with its use. It is the
4.1.5 Optional requirements,
responsibility of the user of this standard to establish appro-
4.1.6 Certification—State if certification is required,
priate safety, health, and environmental practices and deter-
4.1.7 Samples for Product (Check) Analysis—State whether
mine the applicability of regulatory limitations prior to use.
samples for product (check) analysis should be furnished, and
1.4 This international standard was developed in accor-
4.1.8 Purchaser Inspection—If the purchaser wishes to
dance with internationally recognized principles on standard-
witness tests or inspection of material at the place of
ization established in the Decision on Principles for the
manufacture, the purchase order must so state, indicating
Development of International Standards, Guides and Recom-
which tests or inspections are to be witnessed.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Materials and Manufacture
2. Referenced Documents
5.1 Pipeandtubeshallbefurnishedinthesolution-annealed
2.1 ASTM Standards:
condition.
B829 Specification for General Requirements for Nickel and
NOTE 1—The recommended heat treatment for UNS N08028 shall
Nickel Alloys Seamless Pipe and Tube
consist of heating the material to a temperature of 1975 to 2100 °F (1080
to 1150 °C) with subsequent quenching in water or rapidly cooling by
3. General Requirement
other means. The recommended heat treatment for UNS N08029 shall
3.1 Material furnished under this specification shall con- consist of heating the material to a minimum temperature of 2000 °F
(1100 °C) with subsequent quenching in water or rapidly cooling by other
form to the applicable requirements of Specification B829
means.
unless otherwise provided herein.
5.2 The scale shall be removed by suitable means. When
4. Ordering Information
bright annealed, scale removal operations are not necessary.
4.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for the safe and satisfactory
6. Chemical Composition
6.1 The material shall conform to the requirement pre-
This specification is under the jurisdiction of ASTM Committee B02 on
scribed in Table 1.
Nonferrous Metals and Alloys and is the direct responsibilit
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B668 − 14 (Reapproved 2019)
Standard Specification for
UNS N08028 and N08029 Seamless Pipe and Tube
This standard is issued under the fixed designation B668; 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.
1. Scope performance of material ordered under this specification.
Examples of such requirements include, but are not limited to,
1.1 This specification covers UNS N08028 and N08029
the following:
seamless cold-finished or hot-finished pipe and tube intended
4.1.1 Alloy name or UNS number,
for general corrosive service. The general requirements are
covered in Specification B829. 4.1.2 ASTM designation and year of issue,
4.1.3 Dimensions:
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical 4.1.3.1 Outside diameter, minimum or average wall thick-
ness (in inches or millimetres, not gage number), and length,
conversions to SI units that are provided for information only
and are not considered standard.
4.1.3.2 Standard pipe size, schedule and length,
1.3 This standard does not purport to address all of the 4.1.4 Quantity (feet or metres, or number of pieces),
safety concerns, if any, associated with its use. It is the
4.1.5 Optional requirements,
responsibility of the user of this standard to establish appro-
4.1.6 Certification—State if certification is required,
priate safety, health, and environmental practices and deter-
4.1.7 Samples for Product (Check) Analysis—State whether
mine the applicability of regulatory limitations prior to use.
samples for product (check) analysis should be furnished, and
1.4 This international standard was developed in accor-
4.1.8 Purchaser Inspection—If the purchaser wishes to
dance with internationally recognized principles on standard-
witness tests or inspection of material at the place of
ization established in the Decision on Principles for the
manufacture, the purchase order must so state, indicating
Development of International Standards, Guides and Recom-
which tests or inspections are to be witnessed.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Materials and Manufacture
2. Referenced Documents
5.1 Pipe and tube shall be furnished in the solution-annealed
2.1 ASTM Standards:
condition.
B829 Specification for General Requirements for Nickel and
NOTE 1—The recommended heat treatment for UNS N08028 shall
Nickel Alloys Seamless Pipe and Tube
consist of heating the material to a temperature of 1975 to 2100 °F (1080
to 1150 °C) with subsequent quenching in water or rapidly cooling by
3. General Requirement
other means. The recommended heat treatment for UNS N08029 shall
3.1 Material furnished under this specification shall con- consist of heating the material to a minimum temperature of 2000 °F
(1100 °C) with subsequent quenching in water or rapidly cooling by other
form to the applicable requirements of Specification B829
means.
unless otherwise provided herein.
5.2 The scale shall be removed by suitable means. When
4. Ordering Information
bright annealed, scale removal operations are not necessary.
4.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for the safe and satisfactory
6. Chemical Composition
6.1 The material shall conform to the requirement pre-
This specification is under the jurisdiction of ASTM Committee B02 on
scribed in Table 1.
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
6.1.1 A chemical analysis shall be made on each lot of
B02.07 on Refine
...
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: B668 − 14 B668 − 14 (Reapproved 2019)
Standard Specification for
UNS N08028 and N08029 Seamless Pipe and Tube
This standard is issued under the fixed designation B668; 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.
1. Scope*Scope
1.1 This specification covers UNS N08028 and N08029 seamless cold-finished or hot finished hot-finished pipe and tube
intended for general corrosive service. The general requirements are covered in Specification B829.
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 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 be come familiar with all hazards including those identified in the appropriate Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health
practices,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.
2. Referenced Documents
2.1 ASTM Standards:
B829 Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube
3. General Requirement
3.1 Material furnished under this specification shall conform to the applicable requirements of Specification B829 unless
otherwise provided herein.
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,
4.1.2 ASTM designation and year of issue,
4.1.3 Dimensions:
4.1.3.1 Outside diameter, minimum or average wall thickness (in inches or millimetres, not gage number), and length,
4.1.3.2 Standard pipe size, schedule and length,
4.1.4 Quantity (feet or metres, or number of pieces),
4.1.5 Optional requirements,
4.1.6 Certification—State if certification is required,
4.1.7 Samples for Product (Check) Analysis—State whether samples for product (check) analysis should be furnished, and
4.1.8 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.
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 May 15, 2014April 1, 2019. Published May 2014May 2019. Originally approved in 1980. Last previous edition approved in 20102014 as
B668 – 05 (2010).B668 – 14. DOI: 10.1520/B0668-14.10.1520/B0668-14R19.
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.
*A Summary of Changes section appears at the end of this standard
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B668 − 14 (2019)
5. Materials and Manufacture
...
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