ASTM B535-06(2022)
(Specification)Standard Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Seamless Pipe and Tube
Standard Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Seamless Pipe and Tube
ABSTRACT
This specification covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and tube intended for heat resisting applications and general corrosive service. The material shall be furnished in the annealed condition. The alloys shall conform to the composition limits of the material of this specification. Tensile strength, yield strength, elongation, and hardness of the material shall conform to the mechanical property requirements. Annealed alloy UNS N08332 shall conform to an average grain size set by this specification, or coarser. One test per lot is required. Flattening test shall also be performed. Each pipe or tube shall be subjected to either the hydrostatic test or to a nondestructive electric test.
SCOPE
1.1 This specification2 covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and 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 Safety Data Sheet (SDS) 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.
General Information
- Status
- Published
- Publication Date
- 30-Sep-2022
- Technical Committee
- B02 - Nonferrous Metals and Alloys
- Drafting Committee
- B02.07 - Refined Nickel and Cobalt and Their Alloys
Relations
- Effective Date
- 01-Apr-2019
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Apr-2017
- Effective Date
- 01-Oct-2016
- Effective Date
- 01-Oct-2015
- Effective Date
- 01-Oct-2014
- Effective Date
- 01-Feb-2013
- Effective Date
- 01-Oct-2009
- Effective Date
- 01-Oct-2009
- Effective Date
- 15-Apr-2009
- Effective Date
- 01-Dec-2006
- Effective Date
- 01-Nov-2005
- Effective Date
- 01-Oct-2004
- Effective Date
- 01-May-2004
- Effective Date
- 01-Feb-2004
Overview
ASTM B535-06(2022): Standard Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Seamless Pipe and Tube outlines the technical requirements for nickel-iron-chromium-silicon alloys produced as seamless pipes and tubes. Developed by ASTM International, this standard applies to hot-finished and cold-finished products intended for use in high-temperature and general corrosive environments. Pipes and tubes must be supplied in the annealed condition and are commonly used where exceptional heat and corrosion resistance are essential.
Key characteristics of these alloys include high nickel and chromium content with silicon additions, which enhance oxidation and carburization resistance. This specification ensures material reliability and uniform quality for industries requiring robust performance in demanding applications.
Key Topics
- Material Scope: Covers seamless pipe and tube in UNS N08330 and UNS N08332 alloys.
- Heat Resistance: Specifies use in heat resisting applications and general corrosive service.
- Mechanical Properties: Sets requirements for tensile strength, yield strength, elongation, and hardness.
- Chemical Composition: Defines composition limits for elements such as nickel, iron, chromium, silicon, and others to ensure specified alloy characteristics.
- Manufacturing Conditions:
- Pipes and tubes must be annealed.
- Minimum final heat treatments are specified: 1900°F (1040°C) for UNS N08330 and 2100°F (1150°C) for UNS N08332.
- Grain Size: For UNS N08332, an average ASTM No. 5 grain size or coarser is required.
- Testing and Inspection:
- Flattening test to evaluate ductility and soundness.
- Each item must pass either a hydrostatic test or nondestructive electric test for integrity verification.
- Dimensional Tolerances: Specifies permissible variations in outside diameter and other critical geometry parameters.
Applications
The alloys specified by ASTM B535-06(2022) are widely used in environments where high temperature and corrosive conditions prevail:
- Petrochemical Processing: Seamless pipes and tubes are essential in plants processing acids, fuels, and chemicals due to their corrosion resistance.
- Power Generation: These alloys are used for boiler tubes, heat exchangers, and superheater tubes where thermal stability and oxidation resistance are needed.
- Refining & Chemical Industry: Ideal for service in furnaces, reactors, and other environments exposed to harsh chemicals and elevated temperatures.
- Industrial Heating Equipment: Especially suited for radiant tubes and other furnace components.
These applications benefit from the robust mechanical and chemical properties defined in the standard, ensuring facility safety, reliability, and long service life.
Related Standards
ASTM B535-06(2022) references and is associated with several other key documents:
- ASTM B829: General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube - provides detailed requirements on testing, analysis, and permissible variations.
- ASTM B899: Terminology Relating to Non-ferrous Metals and Alloys - standardizes the terminology used within ASTM B535 and related documents.
- ASME SB-535: Covers similar requirements and is referenced for applications related to the ASME Boiler and Pressure Vessel Code.
Compliance with ASTM B535-06(2022) ensures that seamless pipe and tube products meet international expectations for heat-resistant alloys, making them suitable for critical applications in corrosion resistance and high-temperature service.
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Frequently Asked Questions
ASTM B535-06(2022) is a technical specification published by ASTM International. Its full title is "Standard Specification for Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and N08332) Seamless Pipe and Tube". This standard covers: ABSTRACT This specification covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and tube intended for heat resisting applications and general corrosive service. The material shall be furnished in the annealed condition. The alloys shall conform to the composition limits of the material of this specification. Tensile strength, yield strength, elongation, and hardness of the material shall conform to the mechanical property requirements. Annealed alloy UNS N08332 shall conform to an average grain size set by this specification, or coarser. One test per lot is required. Flattening test shall also be performed. Each pipe or tube shall be subjected to either the hydrostatic test or to a nondestructive electric test. SCOPE 1.1 This specification2 covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and 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 Safety Data Sheet (SDS) 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.
ABSTRACT This specification covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and tube intended for heat resisting applications and general corrosive service. The material shall be furnished in the annealed condition. The alloys shall conform to the composition limits of the material of this specification. Tensile strength, yield strength, elongation, and hardness of the material shall conform to the mechanical property requirements. Annealed alloy UNS N08332 shall conform to an average grain size set by this specification, or coarser. One test per lot is required. Flattening test shall also be performed. Each pipe or tube shall be subjected to either the hydrostatic test or to a nondestructive electric test. SCOPE 1.1 This specification2 covers alloys UNS N08330 and N08332 in the form of hot-finished and cold-finished seamless pipe and 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 Safety Data Sheet (SDS) 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.
ASTM B535-06(2022) is classified under the following ICS (International Classification for Standards) categories: 77.150.40 - Nickel and chromium products. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B535-06(2022) has the following relationships with other standards: It is inter standard links to ASTM B829-19, ASTM B829-18, ASTM B829-04a(2017), ASTM B899-16, ASTM B899-15, ASTM B899-14, ASTM B899-13, ASTM B899-09, ASTM B899-09e1, ASTM B829-04a(2009), ASTM B899-06, ASTM B899-05, ASTM B829-04a, ASTM B899-04, ASTM B829-04. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B535-06(2022) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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:B535 −06(Reapproved 2022)
Standard Specification for
Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and
N08332) Seamless Pipe and Tube
This standard is issued under the fixed designation B535; 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. Terminology
1.1 This specification covers alloys UNS N08330 and
3.1 Definitions—Definitions for terms defined in Terminol-
N08332 in the form of hot-finished and cold-finished seamless ogy B899 shall apply unless otherwise defined by the require-
pipe and tube intended for heat resisting applications and
ments of this document.
general corrosive service.
4. General Requirement
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4.1 Material furnished under this specification shall con-
conversions to SI units that are provided for information only
form to the applicable requirements of Specification B829
and are not considered standard.
unless otherwise provided herein.
1.3 This standard does not purport to address all of the
5. Ordering Information
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar
5.1 It is the responsibility of the purchaser to specify all
with all hazards including those identified in the appropriate
requirements that are necessary for material ordered under this
Safety Data Sheet (SDS) for this product/material as provided
specification. Examples of such requirements include, but are
by the manufacturer, to establish appropriate safety, health,
not limited to, the following:
and environmental practices, and determine the applicability
5.1.1 Alloy name or UNS number,
of regulatory limitations prior to use.
5.1.2 ASTM designation and year of issue,
1.4 This international standard was developed in accor-
5.1.3 Dimensions:
dance with internationally recognized principles on standard-
5.1.3.1 Pipe—Specify standard pipe size and schedule,
ization established in the Decision on Principles for the
5.1.3.2 Tube—Specify outside diameter and nominal or
Development of International Standards, Guides and Recom-
minimum wall,
mendations issued by the World Trade Organization Technical
5.1.3.3 Length (specific or random),
Barriers to Trade (TBT) Committee.
5.1.4 Finish:
5.1.4.1 Pipe—Specify cold-worked or hot-worked,
2. Referenced Documents
5.1.4.2 Tube—Specify cold-worked or hot-finished,
2.1 ASTM Standards:
5.1.5 Quantity (feet or meters or number of pieces),
B829 Specification for General Requirements for Nickel and
5.1.6 Hydrostatic Test or Nondestructive Electric Test—
Nickel Alloys Seamless Pipe and Tube
Specify type of test (see 8.4),
B899 Terminology Relating to Non-ferrous Metals and Al-
5.1.7 Certification—State if certification is required,
loys
5.1.8 Samples for Product (Check) Analysis—State whether
samples for product analysis should be furnished, and
5.1.9 Purchaser Inspection—If purchaser wishes to witness
This specification is under the jurisdiction of ASTM Committee B02 on
tests or inspection of material at place of manufacture, the
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
purchase order must so state indicating which test or inspec-
B02.07 on Refined Nickel and Cobalt and Their Alloys.
tions are to be witnessed.
Current edition approved Oct. 1, 2022. Published November 2022. Originally
approved in 1970. Last previous edition approved in 2017 as B535 – 06 (2017).
DOI: 10.1520/B0535-06R22.
6. Materials and Manufacture
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SB-535 in Section II of that Code.
6.1 Heat Treatment—The material shall be furnished in the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
annealed condition. The final heat treatment of UNS N08330
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shall be 1900 °F (1040 °C) minimum. The final heat treatment
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. of UNS N08332 shall be 2100 °F (1150 °C) minimum.
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