ASTM B653/B653M-11(2020)
(Specification)Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Welding Fittings
Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Welding Fittings
ABSTRACT
This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. The fittings are furnished in three grades as follows: Grade R60702 or PZ 2 which is unalloyed zirconium, Grade R60704 or PZ4 which is zirconium-tin, and Grade R60705 or PZ5 which is zirconium-niobium. Forging, forming, or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. The forming procedure shall be so applied that it will not produce injurious defects in the fittings. Filler metal, when used, shall be the same grade as the base metal. The material shall conform to the requirements as to chemical composition and tensile properties specified.
SCOPE
1.1 This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
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 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-2020
- Technical Committee
- B10 - Reactive and Refractory Metals and Alloys
- Drafting Committee
- B10.02 - Zirconium and Hafnium
Relations
- Effective Date
- 01-Nov-2023
- Effective Date
- 01-Aug-2012
- Effective Date
- 15-May-2012
- Effective Date
- 15-May-2012
- Refers
ASTM B550/B550M-07(2012) - Standard Specification for Zirconium and Zirconium Alloy Bar and Wire - Effective Date
- 01-May-2012
- Effective Date
- 01-Apr-2011
- Effective Date
- 01-Apr-2011
- Refers
ASTM B614-10 - Standard Practice for Descaling and Cleaning Zirconium and Zirconium Alloy Surfaces - Effective Date
- 01-May-2010
- Effective Date
- 01-Jun-2007
- Effective Date
- 01-Jun-2007
- Effective Date
- 01-May-2007
- Effective Date
- 01-Sep-2006
- Effective Date
- 01-Sep-2006
- Effective Date
- 01-Nov-2005
- Refers
ASTM B614-05 - Standard Practice for Descaling and Cleaning Zirconium and Zirconium Alloy Surfaces - Effective Date
- 01-May-2005
Overview
ASTM B653/B653M-11(2020) is the international standard specification for seamless and welded zirconium and zirconium alloy welding fittings, developed by ASTM International. This standard applies to factory-made fittings produced from three grades of zirconium and zirconium alloys: unalloyed zirconium (Grade R60702 or PZ 2), zirconium-tin (Grade R60704 or PZ 4), and zirconium-niobium (Grade R60705 or PZ 5). The fittings covered include butt-welding parts, such as elbows, returns, caps, tees, reducers, and lap-joint stub ends, commonly used in piping systems that demand excellent corrosion resistance and mechanical strength.
By defining requirements for chemical composition, manufacturing methods, mechanical properties, and quality assurance, ASTM B653/B653M assures consistency and reliability in zirconium welding fittings for critical industrial applications.
Key Topics
- Material Grades: Covers three grades - unalloyed zirconium, zirconium-tin alloy, and zirconium-niobium alloy - each suited to specific performance and application requirements.
- Fitting Types: Includes 45° and 90° elbows, 180° returns, tees, reducers, caps, and lap-joint stub ends for welding to pipes and tubes.
- Manufacturing Methods: Permits forging, forming, hammering, welding, pressing, extruding, rolling, bending, and machining or combinations thereof, with careful attention to avoiding defects.
- Welding Requirements: Mandates welders and welding procedures qualified according to the ASME Boiler and Pressure Vessel Code, with filler metals matching the base metal grade.
- Hydrostatic Testing: Stipulates hydrostatic testing for leak-tightness, as required by the applicable piping standards.
- Inspection and Marking: Details requirements for inspection, certification, marking, and packaging to ensure traceability and safe delivery.
- Dual Units: Specifies both inch-pound and SI units, noting they must be used independently for conformance.
Applications
ASTM B653/B653M zirconium and zirconium alloy welding fittings are designed for use in industries where high corrosion resistance and mechanical integrity are essential, including:
- Chemical Processing Plants: Suitable for aggressive media due to zirconium’s resistance to acids and other corrosive chemicals.
- Nuclear Industry: Often specified in nuclear power plant systems for safety, reliability, and performance under extreme conditions.
- Pharmaceutical Manufacturing: Used where material purity and resistance to contamination are critical.
- Specialty Piping Systems: Applied in any piping system requiring consistent, weldable, and durable fittings with reliable mechanical properties and conformity to global standards.
Selection of the appropriate grade and fitting type ensures optimal service life and system compatibility in these demanding environments.
Related Standards
ASTM B653/B653M references and aligns with several related standards to ensure comprehensive quality and compatibility:
- ASTM B493: Zirconium and Zirconium Alloy Forgings
- ASTM B523/B523M: Seamless and Welded Zirconium and Zirconium Alloy Tubes
- ASTM B550/B550M: Zirconium and Zirconium Alloy Bar and Wire
- ASTM B551/B551M: Zirconium and Zirconium Alloy Strip, Sheet, and Plate
- ASTM B658/B658M: Seamless and Welded Zirconium and Zirconium Alloy Pipe
- ASTM B614: Descaling and Cleaning of Zirconium Alloy Surfaces
- ASME Boiler and Pressure Vessel Code (Sections VIII & IX)
- ANSI B16.9: Wrought Steel Butt-Welding Fittings
- ANSI B36.19: Stainless Steel Pipe
- MSS SP-25: Marking System for Valves, Fittings, Flanges, and Unions
- MSS SP-43: Light Weight Stainless Steel Fittings
These standards ensure that zirconium welding fittings meet rigorous global requirements for chemical composition, manufacture, inspection, and performance.
Keywords: seamless zirconium fittings, welded zirconium alloy fittings, ASTM B653, butt-welding fittings, zirconium elbow, zirconium tee, high-corrosion resistance fittings, nuclear piping standards, chemical processing fittings, international welding fitting standards.
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Frequently Asked Questions
ASTM B653/B653M-11(2020) is a technical specification published by ASTM International. Its full title is "Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Welding Fittings". This standard covers: ABSTRACT This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. The fittings are furnished in three grades as follows: Grade R60702 or PZ 2 which is unalloyed zirconium, Grade R60704 or PZ4 which is zirconium-tin, and Grade R60705 or PZ5 which is zirconium-niobium. Forging, forming, or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. The forming procedure shall be so applied that it will not produce injurious defects in the fittings. Filler metal, when used, shall be the same grade as the base metal. The material shall conform to the requirements as to chemical composition and tensile properties specified. SCOPE 1.1 This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 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 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 fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. The fittings are furnished in three grades as follows: Grade R60702 or PZ 2 which is unalloyed zirconium, Grade R60704 or PZ4 which is zirconium-tin, and Grade R60705 or PZ5 which is zirconium-niobium. Forging, forming, or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of these operations. The forming procedure shall be so applied that it will not produce injurious defects in the fittings. Filler metal, when used, shall be the same grade as the base metal. The material shall conform to the requirements as to chemical composition and tensile properties specified. SCOPE 1.1 This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 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 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 B653/B653M-11(2020) is classified under the following ICS (International Classification for Standards) categories: 77.150.99 - Other products of non-ferrous metals. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM B653/B653M-11(2020) has the following relationships with other standards: It is inter standard links to ASTM B550/B550M-23, ASTM B523/B523M-12a, ASTM B551/B551M-12, ASTM B523/B523M-12, ASTM B550/B550M-07(2012), ASTM B658/B658M-11, ASTM B658/B658M-11e1, ASTM B614-10, ASTM B551/B551M-07, ASTM B523/B523M-07, ASTM B550/B550M-07, ASTM B523/B523M-06, ASTM B658/B658M-06, ASTM B658/B658M-05, ASTM B614-05. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM B653/B653M-11(2020) 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:B653/B653M −11 (Reapproved 2020)
Standard Specification for
Seamless and Welded Zirconium and Zirconium Alloy
Welding Fittings
This standard is issued under the fixed designation B653/B653M; 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 B551/B551M Specification for Zirconium and Zirconium
Alloy Strip, Sheet, and Plate
1.1 This specification covers fittings, factory made from
B614 Practice for Descaling and Cleaning Zirconium and
three grades of zirconium and zirconium alloys. The term
Zirconium Alloy Surfaces
welding fittings applies to butt-welding parts such as 45 and
B658/B658M Specification for Seamless and Welded Zirco-
90° elbows, 180° returns, caps, tees, reducers, lap-joint stub
nium and Zirconium Alloy Pipe
ends, and other types.
2.2 ANSI Standards:
1.2 The values stated in either inch-pound units or SI units 3
B16.9 Wrought Steel Butt-Welding Fittings
are to be regarded separately as the standard. Within the text,
B36.19 Stainless Steel Pipe
the SI units are shown in brackets. The values stated in each
2.3 Manufacturers’ Standardization Society of the Valve and
system are not exact equivalents; therefore, each system must
Fittings Industry Standards:
be used independently of the other. Combining values from the
SP-25 Standard Marking System for Valves, Fittings,
two systems may result in nonconformance with the specifi-
Flanges, and Unions
cation.
SP-43 Standard Practice for Light Weight Stainless Steel
1.3 This standard does not purport to address all of the
Fittings
safety concerns, if any, associated with its use. It is the
2.4 American Society of Mechanical Engineers:
responsibility of the user of this standard to establish appro-
ASME Boiler and Pressure Vessel Code, Sections VIII and
priate safety, health, and environmental practices and deter-
IX
mine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Lot Definitions:
ization established in the Decision on Principles for the
3.1.1 weld fittings, n—definition is to be mutually agreed
Development of International Standards, Guides and Recom-
upon between manufacturer and the purchaser.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Classification
2. Referenced Documents
4.1 The fittings are furnished in three grades as follows:
4.1.1 Grade R60702 (PZ 2)—Unalloyed zirconium.
2.1 ASTM Standards:
4.1.2 Grade R60704 (PZ 4)—Zirconium-tin.
B493 Specification for Zirconium and Zirconium Alloy
4.1.3 Grade R60705 (PZ 5)—Zirconium-niobium.
Forgings
B523/B523M Specification for Seamless and Welded Zirco-
5. Ordering Information
nium and Zirconium Alloy Tubes
5.1 Orders for materials under this specification shall in-
B550/B550M Specification for Zirconium and Zirconium
clude the following information:
Alloy Bar and Wire
5.1.1 Quantity,
This specification is under the jurisdiction of ASTM Committee B10 on
Reactive and Refractory Metals and Alloys and is the direct responsibility of
Subcommittee B10.02 on Zirconium and Hafnium. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved Oct. 1, 2020. Published October 2020. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
approved in 1979. Last previous edition approved in 2016 as B653/B653M – 11 AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
(2016). DOI: 10.1520/B0653_B0653M-11R20. Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or hq.com.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B653/B653M−11 (2020)
5.1.2 Name of material (zirconium fittings), be removed by grinding, providing the wall thickness is not
5.1.3 Grade number (see 4.1), decreased to less than the minimum thickness, and further
5.1.4 ASTM designation and year of issue, provided that the ground-out area shall be faired out.
5.1.5 Hydrostatic test requirements (see 10.2),
5.1.6 Inspection requirements (see 11.1),
10. Hydrostatic Tests
5.1.7 Finish (see Section 9), and
10.1 All fittings shall be capable of withstanding without
5.1.8 Additions to the specification and supplementary
failure, leakage, or impairment of their serviceability, a test
requirements, if required.
pressure prescribed in the applicable standards in Table 1 for
NOTE 1—A typical ordering description is as follows: 15 pieces,
the pipe or tubing with which the fitting is planned to be used.
zirconium,4-in.[100mm],Schedule40,90°longradiuselbows,descaled,
10.2 Hydrostatic tests shall be performed when required by
ASTM B653 – 01, Grade R60702. Supplementary Requirement S3, Stress
Relief Heat Treatment.
the purchase order.
6. Materials and Manufacture
11. Inspection
6.1 Forging, forming, or shaping operations may be per-
11.1 The manufacturer shall inspect the material covered by
formedbyhammering,pressing,piercing,extruding,upsetting,
this specification prior to shipment. If so specified in the
rolling, bending, fusion welding, machining, or by a combina-
purchaseorder,thepurchaserorhisrepresentativemaywitness
tion of these operations. The forming procedure shall be so
the testing and inspection of the material at the place of
applied that it will not produce injurious defects in the fittings.
manufacture. In such cases the purchaser shall state in his
6.2 Fittings containing welded seams or other joints made
purchase order which tests he desires to witness. The manu-
by welding shall comply with the following provisions:
facturer shall give ample notice to the purchaser as to the time
6.2.1 Welded by welders, welding operators, and welding
and place of the designated tests. If the purchaser’s represen-
procedures qualified under the provisions of Section IX of the
tative does not present himself at the time agreed upon for the
...
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