ASTM B423-05(2009)
(Specification)Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and N08221)* Seamless Pipe and Tube
Standard Specification for Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and N08221)* Seamless Pipe and Tube
ABSTRACT
This specification covers nickel-iron-chromium-molybdenum-copper alloys (UNS N08825 and UNS N08221) in the form of cold-worked and hot-finished seamless pipe and tube intended for general corrosive service. Material furnished under this specification shall conform to the applicable requirements specified. Chemical composition limits of the material such as nickel, chromium, iron, manganese, carbon, copper, silicon, sulfur, aluminum titanium, and molybdenum shall conform to the chemical requirements of this specification. Tensile strength, yield strength and elongation of the material under the specified condition and size shall also conform to the required mechanical properties. Hydrostatic and nondestructive electric tests shall be performed.
SCOPE
1.1 This specification covers nickel-iron-chromium-molybdenum-copper alloys (UNS N08825 and N08221)* in the form of cold-worked and hot-finished seamless pipe and tube intended for general corrosive service. The general requirements for pipe and tube are covered in Specification B 829.
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 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: 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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Designation: B423 – 05 (Reapproved 2009)
Standard Specification for
Nickel-Iron-Chromium-Molybdenum-Copper Alloy
(UNS N08825 and N08221) Seamless Pipe and Tube
This standard is issued under the fixed designation B423; 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* 4. Ordering Information
4.1 It is the responsibility of the purchaser to specify all
1.1 This specification covers nickel-iron-chromium-
molybdenum-copper alloys (UNS N08825 and N08221)* in requirements that are necessary for the safe and satisfactory
the form of cold-worked and hot-finished seamless pipe and performance of material ordered under this specification.
tube intended for general corrosive service. The general Examples of such requirements include, but are not limited to,
requirements for pipe and tube are covered in Specification the following:
B829. 4.1.1 Alloy name or UNS number,
1.2 The values stated in inch-pound units are to be regarded 4.1.2 ASTM designation,
as standard. The values given in parentheses are mathematical 4.1.3 Condition (see Appendix X2),
conversions to SI units that are provided for information only 4.1.4 Finish (see Appendix X2),
and are not considered standard. 4.1.5 Dimensions:
1.3 The following precautionary caveat pertains only to the 4.1.5.1 Tube—Specify outside diameter and nominal or
test methods portion, Section 9, of this specification: This minimum wall,
standard does not purport to address all of the safety concerns, 4.1.5.2 Pipe—Specify standard pipe size and schedule,
if any, associated with its use. It is the responsibility of the user 4.1.5.3 Length—Cut to length or random,
of this standard to become familiar with all hazards including 4.1.6 Quantity—Feet (or metres) or number of pieces,
those identified in the appropriate Material Safety Data Sheet 4.1.7 Hydrostatic Test or Nondestructive Electric Test—
(MSDS) for this product/material as provided by the manufac- Specify type of test (see 6.2).
turer, to establish appropriate safety and health practices, and 4.1.8 Hydrostatic Pressure Requirements—Specify test
determine the applicability of regulatory limitations prior to pressure if other than required by 9.1.1,
use. 4.1.9 Certification—State if certification is required,
4.1.10 Samples for Product (Check) Analysis—State
2. Referenced Documents
whether samples for product (check) analysis should be fur-
2.1 ASTM Standards:
nished (see 5.2),
B829 Specification for General Requirements for Nickel 4.1.11 Purchaser Inspection—If purchaser wishes to wit-
and Nickel Alloys Seamless Pipe and Tube
ness tests or inspection of material at place of manufacture, the
purchase order must so state indicating which tests or inspec-
3. General Requirement
tions are to be witnessed, and
3.1 Material furnished under this specification shall con-
4.1.12 Small-Diameter and Light-Wall Tube (Converter
form to the applicable requirements of Specification B829
Sizes)—See Appendix X1.
unless otherwise provided herein.
5. Chemical Composition
1 5.1 The material shall conform to the composition limits
This specification is under the jurisdiction of ASTM Committee B02 on
specified in Table 1. One test is required for each lot as defined
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.07 on Refined Nickel and Cobalt and Their Alloys.
in Specification B829.
Current edition approved Oct. 1, 2009. Published October 2009. Originally
5.2 If a product (check) analysis is performed by the
approved in 1964. Last previous edition approved in 2005 as B423 - 05. DOI:
purchaser, the material shall conform to the product (check)
10.1520/B0423-05R09.
* New designation established in accordance with Practice E527 and SAE
analysis variations of Specification B829.
J 1086, Practice for Numbering Metals and Alloys (UNS).
For ASME Boiler and Pressure Vessel Code applications see related specifica-
6. Mechanical Properties and Other Requirements
tion SB-423 in Section II of that code.
6.1 Tension Test—The material shall conform to the tensile
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
properties specified in Table 2. The sampling and specimen
Standards volume information, refer to the standard’s Document Summary page on
preparation are as covered in Specification B829.
the ASTM website.
*ASummary 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.
B423 – 05 (2009)
TABLE 1 Chemical Requirements
8. Number of Tests
Element UNS N08825 UNS N08221
8.1 Chemical Analysis—One test per lot.
Nickel 38.0–46.0 39.0–46.0
8.2 Tension—One test per lot.
Chromium 19.5–23.5 20.0–22.0
8.3 Hydrostatic or Nondestructive Electric Test—Each
Iron 22.0 min 22.0 min
piece in each lot.
Manganese 1.0 max 1.0 max
Carbon 0.05 max 0.025 max
Copper 1.5–3.0 1.5–3.0
9. Test Methods
Silicon 0.5 max 0.5 max
9.1 Hydrostatic Test—Each pipe or tube with an outside
Sulfur 0.03 max 0.03 max
Aluminum 0.2 max 0.2 max
diameter ⁄8 in. (3 mm) and larger and with wall thickness of
Titanium 0.6–1.2 0.6–1.0
0.015in.(0.38mm)andovershallbetestedinaccordancewith
Molybdenum 2.5–3.5 5.0–6.5
Specification B829. The allowable fiber stress, for material in
the condition furnished, is as follows:
UNS N08825 hot finished, annealed: 16 600 psi (114 MPa)
6.1.1 Tensile properties for material specified as small-
UNS N08825 cold-worked, annealed: 21 200 psi (146 MPa)
diameter and light-wall tube (converter sizes) shall be as
UNS N08221 cold finished, annealed: 19 700 psi (138 MPa)
prescribed in Table X1.1.
9.1.1 When so agreed upon between the manufacturer and
6.2 Hydrostatic or Nondestructive Electric Test—Each pipe
purchaser, pipe or tube may be tested to 1 ⁄2 times the
or tube shall be subjected to either the hydrostatic test or the
allowable fiber stress given in 9.1.
nondestructive electric test. The type of test to be used shall be
9.1.2 If any pipe or tube shows leaks during hydrostatic
at the option of the manufacturer, unless otherwise specified in
testing, it shall be rejected.
the purchase order.
9.2 Nondestructive Electric Test—Eachpipeortubeshallbe
examinedwithanondestructiveelectrictestinaccordancewith
7. Dimensions and Permissible Variations
Specification B829.
7.1 Diameter and Wall Thickness—The permissible varia-
tions in the outside diameter and wall thickness shall conform
10. Keywords
to the permissible variations prescribed in Tables 3, 4, and 5 of
10.1 N08221; N08825; seamless pipe; seamless tube
Specification B829.
7.2 Permissible variations for material specified as small-
diameter and light-wall tube (converter size) shall conform to
the permissible variations prescribed in Table X1.2.
TABLE 2 Mechanical Properties of Pipe and Tube
Yield Strength Elongation in
Tensile Strength, 0.2 % Offset, min, 2 in. or 50
Alloy Condition and Size
min, ksi (MPa) ksi (MPa) mm (4D),
min,%
UNS N08825 hot-finished annealed 75 (517) 25 (172) 30
UNS N08825 cold-worked annealed 85 (586) 35 (241) 30
AA A
UNS N08825 hot-forming quality (hot-finished or cold-drawn
annealed)
UNS N08221 cold-finished, annealed 79 (545) 34 (234) 30
A
Hot-forming quality is furnished to chemical requirements and su
...
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:B423–03 Designation: B 423 – 05 (Reapproved 2009)
Standard Specification for
Nickel-Iron-Chromium-Molybdenum-Copper Alloy
(UNS N08825 and N08221)* Seamless Pipe and Tube
This standard is issued under the fixed designation B 423; 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*
1.1 This specification covers nickel-iron-chromium-molybdenum-copper alloys (UNS N08825 and N08221)* in the form of
cold-worked and hot-finished seamless pipe and tube intended for general corrosive service.The general requirements for pipe and
tube are covered in Specification B 829.
1.2The following precautionary caveat pertains only to the test methods portion, Section
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 The following precautionary caveat pertains only to the test methods portion, Section 9, of this specification: 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 and health practices and determine the applicability of regulatory limitations prior to use.
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.
2. Referenced Documents
2.1 ASTM Standards:
B 829 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 B 829 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,
4.1.3 Condition (see Appendix X2),
4.1.4 Finish (see Appendix X2),
4.1.5 Dimensions:
4.1.5.1 Tube—Specify outside diameter and nominal or minimum wall,
4.1.5.2 Pipe—Specify standard pipe size and schedule,
4.1.5.3 Length—Cut to length or random,
4.1.6 Quantity—Feet (or metres) or number of pieces,
4.1.7 Hydrostatic Test or Nondestructive Electric Test—Specify type of test (see 6.2).
ThisspecificationisunderthejurisdictionofASTMCommitteeB02onNonferrousMetalsandAlloysandisthedirectresponsibilityofSubcommitteeB02.07onRefined
Nickel and Cobalt and Their Alloys.
Current edition approved June 10, 2003. Published July 2003. Originally approved in 1964. Last previous edition approved in 1999 as B423-99.
Current edition approved Oct. 1, 2009. Published October 2009. Originally approved in 1964. Last previous edition approved in 2005 as B 423 - 05.
* New designation established in accordance with Practice E 527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
For ASME Boiler and Pressure Vessel Code applications see related specification SB-423 in Section II of that code.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 02.04.volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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.
B 423 – 05 (2009)
4.1.8 Hydrostatic Pressure Requirements—Specify test pressure if other than required by 9.1.1,
4.1.8
4.1.9 Certification—State if certification is required,
4.1.9
4.1.10 SamplesforProduct(Check)Analysis—Statewhethersamplesforproduct(check)analysisshouldbefurnished(see5.2),
4.1.10
4.1.11 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, and
4.1.11
4.1.12 Small-Diameter and Light-Wall Tube (Converter Sizes)—See Appendix X1.
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
TABLE 1 Chemical Requirements
Element UNS N08825 UNS N08221
Nickel 38.0–46.0 39.0–46.0
Chromium 19.5–23.5 20.0–22.0
Iron 22.0 min 22.0 min
Manganese 1.0 max 1.0 max
Carbon 0.05 max 0.025 max
Copper 1.5–3.0 1.5–3.0
Silicon 0.5 max 0.5 max
Sulfur 0.03 max 0.03 max
Aluminum 0.2 max 0.2 max
Titanium 0.6–1.2 0.6–1.0
Molybdenum 2.5–3.5 5.0–6.5
Specification B 829.
5.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis
variations of Specification B 829.
6. Mechanical Properties and Other Requirements
6.1 Tension Test— The material shall conform to the tensile properties specified in Table 2. The sampling and specimen
preparation are as covered in Specification B 829.
6.1.1 Tensile properties for material specified as small-diameter and light-wall tube (converter sizes) shall be as prescribed in
Table X1.1.
6.2Hydrostatic Test— If any pipe or tube shows leaks during hydrostatic testing, it shall be rejected.
6.2 Hydrostatic or Nondestructive Electric Test—Each pipe or tube shall be subjected to either the hydrostatic test or the
nondestructive electric test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the
purchase order.
7. Dimensions and Permissible Variations
7.1 Diameter and Wall Thickness —The permissible variations in the outside diameter and wall thickness shall conform to the
permissible variations prescribed in Tables 3, 4, and 5 of Specification B 829.
7.2 Permissible variations for material specified as small-diameter and light-wall tube (converter size) shall conform to the
permissible variations prescribed in Table X1.2.
8. Number of Tests
8.1 Chemical Analysis—One test per lot.
TABLE 2 Mechanical Properties of Pipe and Tube
Yield Strength Elongation in
Tensile Strength, 0.2 % Offset, min, 2 in. or 50
Alloy Condition and Size
min, ksi (MPa) ksi (MPa) mm (4D),
min,%
UNS N08825 hot-finished annealed 75 (517) 25 (172) 30
UNS N08825 cold-worked annealed 85 (586) 35 (241) 30
AA A
UNS N08825 hot-forming quality (hot-finished or cold-drawn
annealed)
UNS N08221 cold-finished, annealed 79 (545) 34 (234) 30
A
Hot-forming quality is furnished to chemical requirements and surface inspection only. No mechanical properties are required.
B 423 – 05 (2009)
8.2 Tension—One test per lot.
B 423 – 05 (2009)
8.3Hydrostatic
8.3 Hydrostatic or Nondestructive Electric Test—Each piece in each lot.
9. Test Methods
9.1 Hydrostatic Test—Each pipe or tube with an outside diameter ⁄8 in. (3 mm) and larger and with wall thickness of 0.015 in.
(0.38 mm) and over shall be tested in accordance with Specification B829.B 829. The allowable fiber stress, for material in the
condition furnished, is as follows:
UNS N08825 hot finished, annealed: 16 600 psi (114 MPa)
UNS N08825 cold-worked, annealed
...
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