Designation:A358/A358M−12Ud in USDOE-NE Standards Standard Specification for
Electric-Fusion-Welded Austenitic Chromium-Nickel
Stainless Steel Pipe for High-Temperature Service and
General Applications1
This standard is issued under thefixed designation A358/A358M;the number immediately following the designation indicates the year
of original adoption or,in the ca of revision,the year of last revision.A number in parenthes indicates the year of last reapproval.
A superscript epsilon(´)indicates an editorial change since the last revision or reapproval.
1.Scope*
1.1This specification2covers electric-fusion-welded auste-nitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature rvice,or both,or for general applica-tions.
N OTE1—The dimensionless designator NPS(nominal pipe size)has been substituted in this standard for such traditional terms as“nominal diameter,”“size,”and“nominal size.”
1.2This specification covers the grades of alloy and stain-less steel listed in Table1.The lection of the proper grade and requirements for heat treatment shall be at the discretion of the purchar,dependent on the rvice conditions to be encountered.
1.3Five class of pipe are covered as follows:
1.3.1Class1—Pipe shall be double welded by process employingfiller metal in all pass and shall be completely radiographed.
1.3.2Class2—Pipe shall be double welded by process employingfiller metal in all pass.No radiography is re-quired.
1.3.3Class3—Pipe shall be single welded by process employingfiller metal in all pass and shall be completely radiographed.
1.3.4Class4—Same as Class3except that the weld pass expod to the inside pipe surface may be made without the addition offiller metal(e6.
2.2.1and6.2.2.2).
1.3.5Class5—Pipe shall be double welded by process employingfiller metal in all pass and shall be spot radio-graphed.
1.4Supplementary requirements covering provisions rang-ing from additional testing to formalized procedures for manufacturing practice are provided.Supplementary Require-ments S1through S6are included as options to be specified when desired.
1.5The values stated in either inch-pound units or SI units are to be regarded parately as standard.Within the text,the SI units are shown in brackets.The values stated in each system may not be exact equivalents;therefore,each system shall be ud independently of the other.Combining values from the two systems may result in nonconformance with the specification.The inch-pound units shall apply unless the“M”designation of this specification is specified in the order.
2.Referenced Documents
2.1ASTM Standards:3
A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate,Sheet,and Strip for Pressure Vesls and for General Applications
A262Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet,and Strip
A941Terminology Relating to Steel,Stainless Steel,Related Alloys,and Ferroalloys
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E527Practice for Numbering Metals and Alloys in the Unified Numbering System(UNS)
2.2ASME Boiler and Pressure Vesl Code:4
Section II,Materials
Section III,Rules for Construction of Nuclear Facility Com-ponents
Section VIII,Rules for Construction of Pressure Vesls Section IX,Welding and Brazing Qualifications
1This specification is under the jurisdiction of ASTM Committee A01on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee A01.10on Stainless and Alloy Steel Tubular Products.
Current edition approved Dec.1,2012.Published January2013.Originally approved in1952.Last previous edition approved in2008as A358/A358M–08a. DOI:10.1520/A0358_A0358M-12.
2For ASME Boiler and Pressure Vesl Code applications e related Specifi-cations SA-358in Section II of that Code.
3For referenced ASTM standards,visit the ASTM website,,or contact ASTM Customer Service at For Annual Book of ASTM Standards volume information,refer to the standard’s Document Summary page on the ASTM website.
4Available from American Society of Mechanical Engineers(ASME),ASME International Headquarters,Three Park Ave.,New York,NY10016-5990,
*A Summary of Changes ction appears at the end of this standard Copyright©ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959.United States
1
Copyright by ASTM Int'l (all rights rerved);
2.3AWS Specifications:5
A5.4/A5.4M Stainless Steel Electrodes for Shielded Metal Arc Welding
A5.9/A5.9M Bare Stainless Steel Welding Electrodes and Rods
A5.11/A5.11M Nickel and Nickel-Alloy Welding Electrodes for Shielded Metal Arc Welding
A5.14/A5.14M Nickel and Nickel-Alloy Bare Welding Elec-trodes and Rods
A5.22/A5.22M Stainless Steel Flux Cored and Metal Cored Welding Electrodes and Rods A5.30/A5.30M Consumable Inrts 2.4Other Standard:6
SAE J1086Practice for Numbering Metals and Alloys (UNS)3.Terminology
3.1Definitions:
3.1.1The definitions in Specification A999/A999M and Terminology A941are applicable to this specifi
cation.
4.Ordering Information
4.1It shall be the responsibility of the purchar to specify all requirements that are necessary for product under this specification.Such requirements to be considered include,but are not limited to,the following:
4.1.1Quantity (feet,metres,or number of lengths),4.1.2Name of material (electric-fusion-welded pipe),4.1.3Grade (Table 1),4.1.4Class (e 1.3),
4.1.5Size (outside diameter and nominal wall thickness),4.1.6Length (specific or random),
4.1.7End finish (Section on Ends of Specification A999/A999M ),
4.1.8Authorization for repair of plate defects by welding and subquent heat treatment without prior approval if such is intended (e 9.3),
4.1.9Specification designation,4.1.10Special requirements,
4.1.11Statement invoking requirements of 16.4if such is intended.
4.1.12Circumferential weld permissibility (e Section 16),4.1.13Supplementary Requirements (S1through S8),4.1.14Applicable ASME Code if known,
4.1.15For ASME Code Section III applications,the rvice classification intended,and
4.1.16Certification requirements (e Section on Certifica-tion of Specification A999/A999M ).
5.General Requirements
5.1Material furnished to this specification shall conform to the applicable requirements of the current edition of Specifi-cation A999/A999M unless otherwi provided herein.
6.Materials and Manufacture
6.1Materials:
6.1.1The steel plate material shall conform to the require-ments of one of the grades of Specification A240/A240M ,listed in Table 1,except as provided in 6.3.2.3.
6.2Welding:
6.2.1The joints shall be full penetration double-welded or single-welded butt joints employing fusion welding process as defined under “Definitions,”ASME Boiler and Pressure Vesl Code,Section IX.This specification makes no provision for any difference in weld quality requirements regardless of the weld joint type employed (single or double)in making the weld.Where backing rings or strips are employed,the ring or strip material shall be of the same P-Number (Table QW-422of Section IX)as the plate being joined.Backing rings or strips shall be completely removed after welding,prior to any required radiography,and the expod weld surface shall be examined visually for conformance to the requirements of 6.2.3.Welds made by procedures employing backing strips or rings that remain in place are prohibited.Welding procedures,and welding operators shall be qualified in accordance with ASME Boiler and Pressure Vesl Code,Section IX.
6.2.2Except as provided in 6.2.2.1and 6.2.2.2,welds shall be made in their entirety by process involving the deposition of filler metal.
6.2.2.1For Class 4pipe employing multiple pass,the root-pass may be without the addition of filler metal.
6.2.2.2For Class 4pipe,the weld surface expod inside the pipe may result from a single pass made from the inside of the pipe without the addition of filler metal.
6.2.2.3All single-welded pipe shall be completely radio-graphed.
6.2.3The weld surface on either side of the weld is permitted to be flush with the ba plate or to have a reasonably uniform crown,not to exceed 1⁄8in.[3mm].It is permitted at the option of the manufacturer or by agreement between the manufacturer and purchar to remove any weld reinforce-ment.The contour of the reinforcement should be reasonably smooth and free from irregularities.The deposited metal shall be fud uniformly into the plate surface.No concavity of contour is permitted unless the resulting thickness of weld metal is equal to or greater than the minimum thickness of the adjacent ba metal.
6.2.4Weld defects shall be repaired by removal to sound metal and rewelding.Subquent heat treatment and examina-tion (that is,visual,radiographic,and dye penetrant)shall be as required on the original welds.
6.3Heat Treatment:
6.3.1Unless otherwi stated in the order,all pipe shall be furnished in the heat-treated condition in accordance with the requirements of Table 2.
6.3.2The purcha order shall specify one of the following conditions if the heat-treated condition specified in 6.3.1is not desired by the purchar:
6.3.2.1A final heat-treatment temperature under 1900°F [1040°C]—Each pipe supplied under this requirement shall be stenciled with the final heat-treatment temperature in degrees
5
Available from American Welding Society (AWS),550NW LeJeune Rd.,Miami,FL 33126,6
Available from Society of Automotive Engineers (SAE),400Commonwealth Dr.,Warrendale,PA 15096-0001,
4
Copyright by ASTM Int'l (all rights rerved);
Fahrenheit or degrees Celsius after the suffix “HT”.Controlled structural or special rvice characteristics may be specified as a guide for the most suitable heat treatment.
6.3.2.2No final heat treatment of pipe fabricated of plate that has been solution heat treated at temperatures required by this specification—Each pipe supplied under this requirement shall be stenciled with the suffix “HT-O”.
6.3.2.3No final heat treatment of pipe fabricated of plate that has not been solution heat treated—Each pipe supplied under this requirement shall be stenciled with the suffix “HT-SO”.
6.4A solution annealing temperature above 1950°F [1065°C]may impair the resistance to intergranular corrosion after subquent exposure to nsitizing conditions in Grades 321,321H,347,347H,and 348.When specified by the purchar,a lower temperature stabilization or re-solution anneal shall be ud subquent to the initial high temperature solution anneal (e Supplementary Requirement S5).
7.Chemical Composition
7.1The chemical composition of the plate shall conform to the requirements of the applicable specification and grade listed in Specification A240/A240M .
7.2Except for Grade S34751,the chemical composition of the welding filler metal shall conform to the requirements of the applicable AWS specification for the corresponding grade shown in Table 1,or shall conform to the chemical composi-tion specified for the plate in Specification A240/A240M ,or shall,subject to purchar approval,be a filler metal more highly alloyed than the ba metal when needed for corrosion resistance or other properties.U of a filler metal other than that listed in Table 1or conforming to the chemical composi-tion specified for the plate in Specification A240/A240M shall be reported and the filler metal identified on the certificate of
tests.When nitrogen and cerium are specified elements for the ordered grade,the method of analysis for the elements shall be a matter of agreement between the purchar and the manufacturer.
7.3The chemical composition of the welding filler metal for Grade S34751shall conform to the chemical composition specified for the plate in Specification A240/A240M .The method for analysis for nitrogen shall be a matter of agreement between the purchar and the manufacturer.8.Permissible Variations in Dimensions
8.1Permissible Variations—The dimensions at any point in a length of pipe shall not exceed the following:
8.1.1Outside Diameter—Bad on circumferential measurement,60.5%of the specified outside diameter.
8.1.2Out-of-Roundness—Difference between major and mi-nor outside diameters,1%.
8.1.3Alignment—Using a 10-ft [3-m]straightedge placed so that both ends are in contact with the pipe,1⁄8in.[3mm]deviation from contact with the pipe.
8.1.4Thickness—The minimum wall thickness at any point in the pipe shall not be more than 0.01in.[0.3mm]under the nominal thickness.
9.Workmanship,Finish,and Appearance
9.1The finished pipe shall have a workmanlike finish.9.2Repair of Plate Defects by Machining or Grinding—It is permitted to repair pipes showing slivers,or other surface defects,by machining or grounding inside or outside to a depth that ensures the removal of all included scale and slivers,provided that the wall thickness is not reduced below the specified minimum wall thickness.Machining or grinding shall follow inspection of the pipe as rolled,and shall be followed by supplementary visual inspection.
TABLE 2Annealing Requirements
Grade or UNS Designation A
Heat Treating Temperature B Cooling/Testing Requirements
All grades not individually listed below:1900°F [1040°C]C 304H,309S,309Cb,310S,310Cb,321H,347H,S22100,S28300,1900°F [1040°C]
D
N080201800-1850°F [980-1010°C]
D N083672025°F [1110°C]D N088102050°F [1120°C]D N089042000°F [1095°C]D N089262010°F [1100°C]D S306002100°F [1150°C]D S308151920°F [1050°C]D S312542100°F [1150°C]D S312662100°F [1150°C]
D S317271975–2175°F [1080to 1180°C]
D S320502100°F [1150°C]
D S320531975–2175°F [1080to 1180°C]
D S326542100°F [1150°C]D S34565
2050°F [1120°C]
D
A New designation established in accordance with Practice E527and SAE J1086.B
Minimum,unless otherwi stated.C
Quenched in water or rapidly cooled by other means,at a rate sufficient to prevent reprecipitation of carbides,as demonstrable by the capability of passing Practices A262,Practice E.The manufacturer is not required to run the test unless it is specified on the purcha order (e Supplementary Requirement S7).Note that Practices A262requires the test to be performed on nsitized specimens in the low-carbon and stabilized types and on specimens reprentative of the as-shipped condition for other types.In the ca of low-carbon types containing 3%or more molybdenum,the applicability of the nsitizing treatment prior to testing shall be a matter for negotiation between the ller and the purchar.D
Quenched in water or rapidly cooled by other
means.
5
Copyright by ASTM Int'l (all rights rerved);
