ASTM B726-02(2011)
(Specification)Standard Specification for Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon Alloy (UNS N06333) Welded Tube
Standard Specification for Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon Alloy (UNS N06333) Welded Tube
ABSTRACT
This specification covers UNS N06333 alloy welded tubes intended for heat-resisting applications and general corrosive service. Each tube should be made from the flat-rolled alloy by an automatic welding process without any filler metal additions and subsequently furnished annealed with the oxide removed. Descaling is not necessary when the final heat treatment is performed in a protective atmosphere. A flattening test and a flange test will be performed on each end of one tube per lot.
SCOPE
1.1 This specification covers alloy UNS N06333 in the form of welded tube 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 appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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Designation:B726 −02(Reapproved 2011)
Standard Specification for
Nickel-Chromium-Molybdenum-Cobalt-Tungsten-Iron-Silicon
1
Alloy (UNS N06333) Welded Tube
This standard is issued under the fixed designation B726; 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 specification. Examples of such requirements include, but are
not limited to, the following:
1.1 This specification covers alloy UNS N06333 in the form
4.1.1 Alloy or UNS number,
of welded tube intended for heat-resisting applications and
4.1.2 ASTM designation and date of issue,
general corrosive service.
4.1.3 Dimensions (outside or inside diameter and nominal-
1.2 The values stated in inch-pound units are to be regarded
wall thickness),
as standard. The values given in parentheses are mathematical
4.1.4 Length (specific or random),
conversions to SI units that are provided for information only
4.1.5 Quantity (feet or number of pieces),
and are not considered standard.
4.1.6 Certification—State if certification is required,
1.3 This standard does not purport to address all of the 4.1.7 Samples for Product (Check) Analysis—State whether
safety concerns, if any, associated with its use. It is the
samples should be furnished, and
responsibility of the user of this standard to become familiar 4.1.8 Purchaser Inspection—If purchaser wishes to witness
with all hazards including those identified in the appropriate
tests or inspection of material at place of manufacture, the
Material Safety Data Sheet (MSDS) for this product/material purchase order must so state indicating which tests or inspec-
as provided by the manufacturer, to establish appropriate
tions are to be witnessed.
safety and health practices, and determine the applicability of
5. Materials and Manufacture
regulatory limitations prior to use.
5.1 The tube shall be made from flat-rolled alloy conform-
2. Referenced Documents
ing to Specification B718, by an automatic welding process
2
2.1 ASTM Standards:
with no addition of filler metal.
B718 Specification for Nickel-Chromium-Molybdenum-
5.2 Tube shall be furnished annealed after welding, with
Cobalt-Tungsten-Iron-SiliconAlloy (UNS N06333) Plate,
oxide removed. When the final heat treatment is performed in
Sheet, and Strip
a protective atmosphere, descaling is not necessary.
B751 Specification for General Requirements for Nickel and
Nickel Alloy Welded Tube
6. Chemical Composition
3. General Requirement 6.1 The material shall conform to the requirements as to
chemical composition specified in Table 1.
3.1 Material furnished under this specification shall con-
form to the applicable requirements of Specification B751 6.2 If a product (check) analysis is performed by the
unless otherwise provided herein. purchaser, the material shall conform to the product (check)
analysis variations in Specification B751.
4. Ordering Information
7. Mechanical and Other Requirements
4.1 It is the responsibility of the purchaser to specify all
requirements that are necessary for material ordered to this
7.1 The mechanical properties of the material at room
temperature shall conform to those shown in Tables 2-4.
1
This specification is under the jurisdiction of ASTM Committee B02 on
7.2 One test is required for each lot as defined in Specifi-
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
cation B751.
B02.07 on Refined Nickel and Cobalt and Their Alloys.
Current edition approved June 1, 2011. Published June 2011. Originally
7.3 Flattening Test—Aflattening test shall be made on each
approved in 1983. Last previous edition approved in 2006 as B726 – 02 (2006).
end of one tube per lot. Superficial ruptures resulting from
DOI: 10.1520/B0726-02R11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or surface imperfections shall not be cause for rejection.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.4 Flange Test—Aflange test shall be made on each end of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. one tube per lot.
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B726−02 (2011)
TABLE 1 Chemical Requirements TABLE 3 Permissible Variations in Outside Diameter,
Ovality, and Wall Thickness of Welded Tube
Element Composition Limits, %
Carbon 0.10 max
NOTE 1—(1) These permissible variations in outside diameter apply
Manganese 2.0 max
onlytotubesasfinishedatthemillbeforesubsequentswaging,expanding,
Phosphorus 0.03
bending, po
...
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