ASTM B723-20
(Specification)Standard Specification for Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon Alloy Welded Pipe
Standard Specification for Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon Alloy Welded Pipe
ABSTRACT
This specification covers nickel-chromium-molybdenum-cobalt-tungsten-iron-silicon (UNS N06333) wrought alloy welded pipe. Pipe shall be manufactured from flat-rolled alloy by an automatic welding process with no additional filler metal. The material shall conform to the composition required by the specification. The pipe shall be subjected to chemical, tensile, yield, elongation, hardness, flattening, and nondestructive tests. Nondestructive test includes pressure and electric testing, although not required by the specification.
SCOPE
1.1 This specification covers wrought alloy UNS N06333 in the form of welded pipe intended for heat-resisting applications and general corrosive service.
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 become familiar with all hazards including those identified in the appropriated Material Safety Data Sheet (MSDS) 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.
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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:B723 −20
Standard Specification for
Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon
1
Alloy Welded Pipe
This standard is issued under the fixed designation B723; 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* 3. General Requirement
3.1 Material furnished in accordance with this specification
1.1 This specification covers wrought alloy UNS N06333 in
shall conform to the applicable requirements of the current
theformofweldedpipeintendedforheat-resistingapplications
edition of Specification B775 unless otherwise provided
and general corrosive service.
herein.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Ordering Information
conversions to SI units that are provided for information only
4.1 It is the responsibility of the purchaser to specify all
and are not considered standard.
requirements that are necessary for the safe and satisfactory
1.3 This standard does not purport to address all of the
performance of material ordered under this specification.
safety concerns, if any, associated with its use. It is the
Examples of such requirements include, but are not limited to,
responsibility of the user of this standard to become familiar
the following:
with all hazards including those identified in the appropriated
4.1.1 Alloy name or UNS number.
Material Safety Data Sheet (MSDS) for this product/material
4.1.2 ASTM designation and year of issue.
as provided by the manufacturer, to establish appropriate
4.1.3 Condition (temper) (Table 1).
safety, health, and environmental practices, and determine the
4.1.4 Dimensions:
applicability of regulatory limitations prior to use.
4.1.4.1 Nominal pipe size or outside diameter and schedule
1.4 This international standard was developed in accor-
number or nominal wall thickness.
dance with internationally recognized principles on standard-
4.1.4.2 Length (specific or random).
ization established in the Decision on Principles for the
4.1.5 Quantity (feet or metres, or number of pieces).
Development of International Standards, Guides and Recom-
4.1.6 Certification—State if certification or a report of test
mendations issued by the World Trade Organization Technical
results is required.
Barriers to Trade (TBT) Committee.
4.1.7 Samples for Product (Check) Analysis—State whether
samples for product (check) analysis should be furnished.
2. Referenced Documents
4.1.8 Purchaser Inspection—If purchaser wishes to witness
2
2.1 ASTM Standards:
tests or inspection of material at place of manufacture, the
B775 Specification for General Requirements for Nickel and
purchase order must so state indicating which tests or inspec-
Nickel Alloy Welded Pipe
tions are to be witnessed.
B718 Specification for Nickel-Chromium-Molybdenum-
Cobalt-Tungsten-Iron-SiliconAlloy (UNS N06333) Plate,
5. Material and Manufacture
Sheet, and Strip
5.1 The pipe shall be made from flat-rolled alloy conform-
ing to Specification B718, by an automatic welding process
with no addition of filler metal.
1
This specification is under the jurisdiction of ASTM Committee B02 on
5.2 Pipe shall be furnished annealed after welding, with
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys. oxide removed. When final heat treatment is performed in a
Current edition approved April 1, 2020. Published May 2020. Originally
protective atmosphere, descaling is not necessary.
approved in 1983. Last previous edition approved in 2014 as B723 – 00 (2014).
DOI: 10.1520/B0723-20.
2
6. Chemical Requirements
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
6.1 The material shall conform to the requirements as to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. chemical composition specified in Table 1.
*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
1
---------------------- Page: 1 ----------------------
B723−20
TABLE 1 Chemical Requirements
Composition
Element
Limits, %
Carbon 0.10 max
Manganese 2.0 max
Phosphorus 0.03
Sulfur 0.03
Silicon 1.5 max
Chromium 24.0–27.0
Nickel 44.0–48.0
Molybdenum 2.5–4.0
Cobalt 2.5–4.0
Tungsten 2.5–4.0
...
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: B723 − 00 (Reapproved 2014) B723 − 20
Standard Specification for
Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon
1
Alloy (UNS N06333) Welded Pipe
This standard is issued under the fixed designation B723; 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 wrought alloy UNS N06333 in the form of welded pipe intended for heat-resisting applications
and general corrosive service.
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 become familiar with all hazards including those identified in the appropriated Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety safety, health, and
healthenvironmental 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
2.1 ASTM Standards:
B775 Specification for General Requirements for Nickel and Nickel Alloy Welded Pipe
B718 Specification for Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon Alloy (UNS N06333) Plate, Sheet, and
Strip
3. General Requirement
3.1 Material furnished in accordance with this specification shall conform to the applicable requirements of the current edition
of Specification B775 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 Condition (temper) (Table 1).
4.1.4 Dimensions:
4.1.4.1 Nominal pipe size or outside diameter and schedule number or nominal wall thickness.
4.1.4.2 Length (specific or random).
4.1.5 Quantity (feet or metres, or number of pieces).
4.1.6 Certification—State if certification or a report of test results is required.
4.1.7 Samples for Product (Check) Analysis—State whether samples for product (check) analysis should be furnished.
1
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 Oct. 1, 2014April 1, 2020. Published May 2020October 2014. . Originally approved in 1983. Last previous edition approved in 20092014 as
B723 – 00 (2009).(2014). DOI: 10.1520/B0723-00R14.10.1520/B0723-20.
2
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
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B723 − 20
TABLE 1 Chemical Requirements
Composition
Element
Limits, %
Carbon 0.10 max
Manganese 2.0 max
Phosphorus 0.03
Sulfur 0.03
Silicon 1.5 max
Chromium 24.0–27.0
Nickel 44.0–48.0
Molybdenum 2.5–4.0
Cobalt 2.5–4.0
Tungsten 2.5–4.0
A
Iron remainder
A
Element may be determined arithmetically by difference.
4.1.8 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.
5. Material and Manufacture
5.1 The pipe shall be made from flat-rolled alloy conforming to Specification B718, by an automatic welding process with n
...
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