ASTM B704-19

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: B704 − 03 (Reapproved 2014) B704 − 19
Standard Specification for
Welded UNS N06625, UNS N06219 and UNS N08825 Nickel
1
Alloy Tubes
This standard is issued under the fixed designation B704; 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 welded UNS N06219, UNS N06625, UNS N06219N08825, and UNS N08825 N08827 nickel
alloy boiler, heat exchanger, and condenser tubes for general corrosion resisting and low or high-temperature service.
1
1.2 This specification covers tubes ⁄8 to 5 in. (3.18 to 127 mm), inclusive, in outside diameter and 0.015 to 0.500 in. (0.38 to
12.70 mm), inclusive, in wall thickness. Specification B751 lists the dimensional requirements of these sizes. Tubes having other
dimensions may be furnished provided such tubing complies with all other requirements of this specification.
1.3 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.
1.4 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 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.
1.5 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:
B751 Specification for General Requirements for Nickel and Nickel Alloy Welded Tube
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
3. Ordering Information
3.1 Orders for material to this specification should include the following information:
3.1.1 Quantity (feet or number of lengths),
3.1.2 UNS number,
3.1.3 Size (outsize diameter, minimum or average wall thickness),
3.1.4 Length (random or specific),
3.1.5 Class, and
3.1.6 Grade if UNS N06625 is specified. If neither grade of N06625 is specified, grade 1 will be supplied.
3.1.7 ASTM designation.
3.1.8 Product Analysis—State if required.
3.1.9 Certification—State if a certification or a report of test results is required.
3.1.9 Purchaser Inspection—State which tests or inspections are to be witnessed, if any.
4. Materials and Manufacture
4.1 Tube shall be made from flat-rolled alloy by an automatic welding process with no addition or filler metal. Subsequent to
welding and prior to final annealing, the material shall be cold-worked in either the weld metal only or both weld and base metal.
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, 2014Nov. 1, 2019. Published October 2014November 2019. Originally approved in 1982. Last previous edition approved in 20092014
as B704B704 – 03 (2014). – 03 (2009). DOI: 10.1520/B0704-03R14.10.1520/B0704-19.
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
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B704 − 19
4.2 Tube shall be furnished with oxide removed. When bright annealing is used, descaling is not necessary.
5. Chemical Composition
5.1 The material shall conform to the composition limits specified in Table 1. One test is required for each lot as defined in
Specification B751.
5.2 If a product analysis is performed, it shall meet the chemistry limi
...

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: B704 − 19
Standard Specification for
1
Welded Nickel Alloy Tubes
This standard is issued under the fixed designation B704; 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* Nickel Alloy Welded Tube
E8 Test Methods for Tension Testing of Metallic Materials
1.1 This specification covers welded UNS N06219, UNS
[Metric] E0008_E0008M
N06625, UNS N08825, and UNS N08827 nickel alloy boiler,
heat exchanger, and condenser tubes for general corrosion
3. Ordering Information
resisting and low or high-temperature service.
1 3.1 Orders for material to this specification should include
1.2 This specification covers tubes ⁄8 to 5 in. (3.18 to 127
the following information:
mm), inclusive, in outside diameter and 0.015 to 0.500 in. (0.38
3.1.1 Quantity (feet or number of lengths),
to 12.70 mm), inclusive, in wall thickness. Specification B751
3.1.2 UNS number,
lists the dimensional requirements of these sizes. Tubes having
3.1.3 Size (outsize diameter, minimum or average wall
other dimensions may be furnished provided such tubing
complies with all other requirements of this specification. thickness),
3.1.4 Length (random or specific),
1.3 The values stated in inch-pound units are to be regarded
3.1.5 Class, and
as standard. The values given in parentheses are mathematical
3.1.6 Grade if UNS N06625 is specified. If neither grade of
conversions to SI units that are provided for information only
N06625 is specified, grade 1 will be supplied.
and are not considered standard.
3.1.7 ASTM designation.
1.4 This standard does not purport to address all of the
3.1.8 Product Analysis—State if required.
safety concerns, if any, associated with its use. It is the
3.1.9 Purchaser Inspection—State which tests or inspec-
responsibility of the user of this standard to become familiar
tions are to be witnessed, if any.
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material
4. Materials and Manufacture
as provided by the manufacturer, to establish appropriate
safety, health, and environmental practices, and determine the
4.1 Tube shall be made from flat-rolled alloy by an auto-
applicability of regulatory limitations prior to use.
matic welding process with no addition or filler metal. Subse-
1.5 This international standard was developed in accor-
quent to welding and prior to final annealing, the material shall
dance with internationally recognized principles on standard-
be cold-worked in either the weld metal only or both weld and
ization established in the Decision on Principles for the
base metal.
Development of International Standards, Guides and Recom-
4.2 Tube shall be furnished with oxide removed. When
mendations issued by the World Trade Organization Technical
bright annealing is used, descaling is not necessary.
Barriers to Trade (TBT) Committee.
5. Chemical Composition
2. Referenced Documents
2
2.1 ASTM Standards: 5.1 The material shall conform to the composition limits
specified in Table 1. One test is required for each lot as defined
B751 Specification for General Requirements for Nickel and
in Specification B751.
5.2 If a product analysis is performed, it shall meet the
1
This specification is under the jurisdiction of ASTM Committee B02 on
chemistry limits prescribed in Table 1, subject to the analysis
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys. tolerances of Specification B751.
Current edition approved Nov. 1, 2019. Published November 2019. Originally
approved in 1982. Last previous edition approved in 2014 as B704 – 03 (2014).
6. Mechanical and Other Properties
DOI: 10.1520/B0704-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 Mechanical Properties—The material shall conform to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the mechanical property requirements specified in Table 2. One
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. test is required for each lot as defined in Specification B751.
*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
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B704 − 19
A
TABLE 1 Chemical Requirements
Composition Limits, %
UNS UNS UNS UNS
N06219 N06625 N08825 N08827
B B
Nickel Bal 58.0 min 38.0–46.0 39.0–43.0
Chromium 18.0–22.0 20.0–23.0 19.5–23.5 21.0–23.0
B
...