ASTM B674-96(2002)e1

Standard Specification for UNS N08904, UNS N08925, and UNS N08926 Welded Tube

SCOPE
1.1 This specification covers UNS N08904, UNS N08925,* and UNS N08926 welded tube for general corrosion applications.
1.2 This specification covers outside diameter and nominal wall tube.
1.2.1 The tube sizes covered by this specification are 1/8 to 5 in. (3.2 to 127 mm) in outside diameter and 0.015 to 0.320 in. (0.38 to 8.13 mm), inclusive, in wall thickness.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values stated in parentheses are for information only.
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 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.

General Information

• Status: Historical
• Publication Date: 09-Oct-1996
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Relations

• Replaces: ASTM B674-96 - Standard Specification for UNS N08904, UNS N08925, and UNS N08926 Welded Tube
• Effective Date: 10-Oct-1996
• Replaced By: ASTM B674-04 - Standard Specification for UNS N08904, UNS N08925, and UNS N08926 Welded Tube
• Effective Date: 01-Oct-2004
• Referred By: ASTM B751-21 - Standard Specification for General Requirements for Nickel and Nickel Alloy Welded Tube
• Effective Date: 10-Oct-1996
• Referred By: ASTM B366/B366M-23 - Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings
• Effective Date: 10-Oct-1996
• Referred By: ASTM B924-02(2022) - Standard Specification for Seamless and Welded Nickel Alloy Condenser and Heat Exchanger Tubes With Integral Fins
• Effective Date: 10-Oct-1996

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation: B 674 – 96 (Reapproved 2002)
Standard Specification for
UNS N08904, UNS N08925, and UNS N08926 Welded Tube
This standard is issued under the fixed designation B 674; 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 (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Paragraph 1.4 was added editorially in June 2002.
1. Scope 3.1.5 Class, and
3.1.6 ASTM designation.
1.1 This specification covers UNS N08904, UNS N08925,*
3.1.7 Product Analysis—State if required.
and UNS N08926 welded tube for general corrosion applica-
3.1.8 Certification—State if a certification or a report of test
tions.
results is required.
1.2 This specification covers outside diameter and nominal
3.1.9 Purchaser Inspection—State which tests or inspec-
wall tube.
1 tions are to be witnessed, if any. Tables 1 and 2
1.2.1 The tube sizes covered by this specification are ⁄8 to 5
in. (3.2 to 127 mm) in outside diameter and 0.015 to 0.320 in.
TABLE 1 Chemical Requirements
(0.38 to 8.13 mm), inclusive, in wall thickness.
Composition, %
1.3 The values stated in inch-pound units are to be regarded
Element
as the standard. The values stated in parentheses are for UNS N08904 UNS N08925 UNS N08926
information only.
Carbon, max 0.020 0.020 0.020
Manganese, max 2.00 1.00 2.00
1.4 This standard does not purport to address all of the
Phosphorus, 0.045 0.045 0.03
safety concerns, if any, associated with its use. It is the
max
responsibility of the user of this standard to become familiar
Sulfur, max 0.035 0.030 0.01
Silicon, max 1.00 0.50 0.5
with all hazards including those identified in the appropriate
Nickel 23.0 to 28.0 24.0 to 26.0 24.00 to 26.00
Material Safety Data Sheet for this product/material as pro-
Chromium 19.0 to 23.0 19.0 to 21.0 19.00 to 21.00
vided by the manufacturer, to establish appropriate safety and
Molybdenum 4.0 to 5.0 6.0 to 7.0 6.0 to 7.0
Copper 1.0 to 2.0 0.8 to 1.5 0.5 to 1.5
health practices, and determine the applicability of regulatory
Nitrogen . 0.1 to 0.2 0.15 to 0.25
limitations prior to use.
Iron balance balance balance
2. Referenced Documents
2.1 ASTM Standards:
4. Materials and Manufacture
B 751 Specification for General Requirements for Nickel
4.1 Tube shall be made from flat-rolled alloy by an auto-
and Nickel Alloy Welded Tube
matic welding process with no addition or filler metal. Subse-
quent to welding and prior to final annealing, the material shall
3. Ordering Information
be cold-worked in either the weld metal only or both weld and
3.1 Orders for material to this specification should include
base metal.
the following information:
3.1.1 Quantity (feet or number of lengths), NOTE 1—The recommended heat treatment shall consist of heating to a
temperature of 1985 to 2100°F (1085 to 1150°C) for UNS N08904 or
3.1.2 UNS number,
2010 to 2100°F (1100 to 1150°C) for UNS N08925 and UNS N08926,
3.1.3 Size (outsize diameter, minimum or average wall
followed by quenching in water or rapid cooling by other means.
thickness),
4.2 Tube shall be furnished with oxide removed. When
3.1.4 Length (random or specific),
bright annealing is used, descaling is not necessary.
5. Chemical Composition
This specification is under the jurisdiction of ASTM Committee B02 on
5.1 The material shall conform to the composition limits
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
specified in Table 1. One test is
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