ASTM B739-03(2023)
(Specification)Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Welded Tube
Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Welded Tube
ABSTRACT
This specification covers the standard for welded tube UNS N08330 and UNS N08332 alloys intended for use in heat resisting applications and general corrosive service. The tubes shall be manufactured from flat-rolled alloy by an automatic welding process with no addition of filler metal. The tubes shall also undergo cold-working subsequent to welding and prior to final heat treatment. Material properties such as yield strength, tensile strength, elongation, and hardness and other requirements such as grain size and annealing temperature shall all be evaluated.
SCOPE
1.1 This specification covers alloys UNS N08330 and UNS N08332 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 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
- 31-Mar-2023
- 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-Apr-2019
- Effective Date
- 01-Nov-2018
- Effective Date
- 01-Feb-2013
- Effective Date
- 01-Feb-2013
- Effective Date
- 01-Nov-2008
- Effective Date
- 01-May-2007
- Effective Date
- 10-Jun-2003
- Effective Date
- 10-Oct-2002
- Effective Date
- 10-May-2002
- Effective Date
- 10-Nov-2001
- Effective Date
- 10-Nov-2001
Overview
ASTM B739-03(2023): Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Welded Tube provides requirements for the manufacture, chemical composition, and mechanical properties of welded tubes made from UNS N08330 and UNS N08332 alloys. These tubes are specifically intended for heat-resistant applications and general corrosive service. Developed by ASTM International, this standard ensures quality and consistency in the production of welded tubes used in demanding industrial environments.
Key Topics
- Material Grades: Covers UNS N08330 and UNS N08332 nickel-iron-chromium-silicon alloys.
- Manufacturing Process: Tubes are produced from flat-rolled alloy using an automatic welding process with no addition of filler metal. Cold-working follows welding and takes place prior to final heat treatment.
- Mechanical Properties: Specifies minimum yield strength, tensile strength, elongation, and informative hardness ranges for both alloys in their annealed conditions.
- Chemical Composition: Sets strict limits for elements such as manganese, phosphorus, sulfur, silicon, chromium, nickel, copper, lead, tin, with iron as the remainder.
- Dimensional Requirements: Tubes are manufactured to specific outside or inside diameter, wall thickness, and length as detailed in purchaser specifications.
- Heat Treatment: Outlines minimum annealing temperatures for both alloys to ensure optimal properties.
- Inspection and Certification: Requirements for material testing, product analysis, and witnessing of manufacturing or testing processes can be specified by the purchaser.
- Safety and Compliance: Encourages conformity with Safety Data Sheets (SDS) and relevant safety, health, and environmental practices.
Applications
ASTM B739 welded tubes are widely applied in industries where high resistance to heat and corrosion is critical. Key use cases include:
- Petrochemical processing: For heat exchangers, boiler tubes, and reformer units exposed to high temperatures and corrosive gases.
- Industrial furnaces: Components such as radiant tubes and muffle tubes where superior oxidation resistance is essential.
- Power generation: Steam generator tubing and superheater tubes in environments subject to temperature cycling and corrosive media.
- Chemical processing: Tubing for equipment subject to acidic or caustic exposure, where both durability and integrity are vital.
Benefits of ASTM B739-compliant welded tubes include enhanced operational safety, reduced downtime, and lower maintenance costs due to their reliable performance in severe service conditions.
Related Standards
Several other ASTM standards and referenced documents provide additional requirements or complementary guidance for nickel alloy welded tubes:
- ASTM B536: Specification for Nickel-Iron-Chromium-Silicon Alloys Plate, Sheet, and Strip, which are source materials for tube formation.
- ASTM B751: Specification for General Requirements for Nickel and Nickel Alloy Welded Tube, covering general rules and testing protocols.
- WTO TBT Principles: The standard aligns with World Trade Organization (WTO) Technical Barriers to Trade (TBT) Committee principles on international standardization.
For further information on welded tube specifications, users are encouraged to consult ASTM B739 in conjunction with these related standards to ensure compliance and optimal material performance in their applications.
Keywords: ASTM B739, nickel-iron-chromium-silicon alloy, welded tube, UNS N08330, UNS N08332, heat-resistant tube, corrosion-resistant, industrial furnace tubing, ASTM standards
For procurement, specification, or technical queries regarding ASTM B739 nickel alloy welded tubes, industry professionals should contact certified suppliers or ASTM International.
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Frequently Asked Questions
ASTM B739-03(2023) is a technical specification published by ASTM International. Its full title is "Standard Specification for Nickel-Iron-Chromium-Silicon Alloy Welded Tube". This standard covers: ABSTRACT This specification covers the standard for welded tube UNS N08330 and UNS N08332 alloys intended for use in heat resisting applications and general corrosive service. The tubes shall be manufactured from flat-rolled alloy by an automatic welding process with no addition of filler metal. The tubes shall also undergo cold-working subsequent to welding and prior to final heat treatment. Material properties such as yield strength, tensile strength, elongation, and hardness and other requirements such as grain size and annealing temperature shall all be evaluated. SCOPE 1.1 This specification covers alloys UNS N08330 and UNS N08332 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 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 the standard for welded tube UNS N08330 and UNS N08332 alloys intended for use in heat resisting applications and general corrosive service. The tubes shall be manufactured from flat-rolled alloy by an automatic welding process with no addition of filler metal. The tubes shall also undergo cold-working subsequent to welding and prior to final heat treatment. Material properties such as yield strength, tensile strength, elongation, and hardness and other requirements such as grain size and annealing temperature shall all be evaluated. SCOPE 1.1 This specification covers alloys UNS N08330 and UNS N08332 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 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 B739-03(2023) 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 B739-03(2023) has the following relationships with other standards: It is inter standard links to ASTM B536-19, ASTM B751-19, ASTM B751-08(2018), ASTM B536-07(2013), ASTM B751-08(2013), ASTM B751-08, ASTM B536-07, ASTM B751-03, ASTM B751-02, ASTM B536-02, ASTM B751-99, ASTM B751-01. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B739-03(2023) 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: B739 − 03 (Reapproved 2023)
Standard Specification for
Nickel-Iron-Chromium-Silicon Alloy Welded Tube
This standard is issued under the fixed designation B739; 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
1.1 This specification covers alloys UNS N08330 and UNS 4.1 It is the responsibility of the purchaser to specify all
N08332 in the form of welded tube intended for heat resisting requirements that are necessary for material ordered under this
applications and general corrosive service.
specification. Examples of such requirements include, but are
not limited to, the following:
1.2 The values stated in inch-pound units are to be regarded
4.1.1 Alloy (Table 1),
as standard. The values given in parentheses are mathematical
4.1.2 ASTM designation and year of issue,
conversions to SI units that are provided for information only
4.1.3 Dimensions (outside or inside diameter and nominal
and are not considered standard.
wall thickness),
1.3 This standard does not purport to address all of the
4.1.4 Length (specific or random),
safety concerns, if any, associated with its use. It is the
4.1.5 Quantity (feet or number of pieces),
responsibility of the user of this standard to become familiar
4.1.6 Certification—State if certification is required,
with all hazards including those identified in the appropriate
4.1.7 Samples for Product (Check) Analysis—State whether
Safety Data Sheet (SDS) for this product/material as provided
samples for product (check) analysis should be furnished, and
by the manufacturer, to establish appropriate safety, health,
4.1.8 Purchaser Inspection—If purchaser wishes to witness
and environmental practices, and determine the applicability
tests or inspection of material at place of manufacture, the
of regulatory limitations prior to use.
purchase order must so state indicating which tests or inspec-
1.4 This international standard was developed in accor-
tions are to be witnessed.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Materials and Manufacture
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5.1 The tube shall be made from flat-rolled alloy conform-
Barriers to Trade (TBT) Committee.
ing to Specification B536, by an automatic welding process
with no addition of filler metal. Subsequent to welding and
2. Referenced Documents
prior to final heat treatment, the tube shall be cold-worked
2.1 ASTM Standards:
either in both weld and base metal or in weld metal only.
B536 Specification for Nickel-Iron-Chromium-Silicon Al-
loys Plate, Sheet, and Strip
6. Chemical Composition
B751 Specification for General Requirements for Nickel and
6.1 The material shall conform to the requirements, as to
Nickel Alloy Welded Tube
chemical composition specified in Table 2.
3. General Requirement
6.2 If a product (check) analysis is performed by the
3.1 Material furnished under this specification shall con-
purchaser, the material shall conform to the product (check)
form to the applicable requireme
...
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