ASTM A333/A333M-18
(Specification)Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness
Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness
ABSTRACT
This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.
SCOPE
1.1 This specification2 covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures and in other applications requiring notch toughness. Several grades of ferritic steel are included as listed in Table 1. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on impact properties.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately 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 used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Note 1: The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
1.3 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
Relations
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:A333/A333M −18
Standard Specification for
Seamless and Welded Steel Pipe for Low-Temperature
Service and Other Applications with Required Notch
Toughness
This standard is issued under the fixed designationA333/A333M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* A999/A999MSpecification for General Requirements for
2 Alloy and Stainless Steel Pipe
1.1 Thisspecification coversnominal(average)wallseam-
A671/A671M Specification for Electric-Fusion-Welded
less and welded carbon and alloy steel pipe intended for use at
Steel Pipe for Atmospheric and Lower Temperatures
low temperatures and in other applications requiring notch
E23Test Methods for Notched Bar Impact Testing of Me-
toughness.Severalgradesofferriticsteelareincludedaslisted
tallic Materials
in Table 1. Some product sizes may not be available under this
E165/E165MPractice for Liquid Penetrant Examination for
specification because heavier wall thicknesses have an adverse
General Industry
effect on impact properties.
E709Guide for Magnetic Particle Testing
1.2 The values stated in either SI units or inch-pound units
2.2 ASME Boiler and Pressure Vessel Code:
are to be regarded separately as standard. Within the text, the
Section VIII
SI units are shown in brackets. The values stated in each
Section IX
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values
3. Ordering Information
from the two systems may result in non-conformance with the
3.1 Orders for material under this specification should
standard. The inch-pound units shall apply unless the “M”
designation of this specification is specified in the order. include the following, as required, to describe the material
adequately:
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
3.1.1 Quantity (feet, centimetres, or number of lengths),
been substituted in this standard for such traditional terms as “nominal
3.1.2 Name of material (seamless or welded pipe),
diameter,” “size,” and “nominal size.”
3.1.3 Grade (Table 1),
1.3 This international standard was developed in accor-
3.1.4 Size(NPSoroutsidediameterandschedulenumberof
dance with internationally recognized principles on standard-
average wall thickness),
ization established in the Decision on Principles for the
3.1.5 Lengths (specific or random) (Section 9), (see the
Development of International Standards, Guides and Recom-
Permissible Variations in Length section of Specification
mendations issued by the World Trade Organization Technical
A999/A999M),
Barriers to Trade (TBT) Committee.
3.1.6 End finish (see the Ends section of Specification
2. Referenced Documents
A999/A999M),
3.1.7 Optionalrequirements,(seetheHeatAnalysisrequire-
2.1 ASTM Standards:
ment in the Chemical Composition section of A999/A999M,
A370Test Methods and Definitions for Mechanical Testing
the Repair byWelding section, and the section on Nondestruc-
of Steel Products
tive Test Requirements),
3.1.8 Test report required, (see the Certification section of
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee Specification A999/A999M),
A01.10 on Stainless and Alloy Steel Tubular Products.
3.1.9 Specification designation, and
Current edition approved Nov. 1, 2018. Published November 2018. Originally
3.1.10 Special requirements or exceptions to this specifica-
approved in 1950. Last previous edition approved in 2016 as A333/A333M–16.
tion.
DOI: 10.1520/A0333_A0333M-18.
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-333 in Section II of that Code.
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 Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.org.
*A Summary 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
A333/A333M−18
B
TABLE 1 Chemical Requirements
Composition, %
Element
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
Carbon, max 0.30 0.19 0.12 0.30 0.19 0.13 0.20 0.20 0.10
A A
Manganese 0.40–1.06 0.31–0.64 0.50–1.05 0.29–1.06 0.90 max 0.90 max 0.40–1.06 1.15–1.50 0.60 max
Phosphorus, 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
max
Sulfur, max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.015 0.025
Silicon . 0.18–0.37 0.08–0.37 0.10 min 0.13–0.32 0.13–0.32 . 0.10–0.35 0.35 max
Nickel . 3.18–3.82 0.47–0.98 0.40 max 2.03–2.57 8.40–9.60 1.60–2.24 0.25 max 35.0–37.0
Chromium . . 0.44–1.01 0.30 max . . . 0.15 max 0.50 max
Copper . . 0.40–0.75 0.40 max . . 0.75–1.25 0.15 max .
Aluminum . . 0.04–0.30 . . . . 0.06 max .
Vanadium, max . . . 0.08 . . . 0.12 .
D C
Niobium , max . . . 0.02 . . . 0.05 .
Molybdenum, . . . 0.12 . . . 0.05 0.50 max
max
Cobalt . . . . . . . . 0.50 max
A
For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.
B
Where an ellipsis (.) appears in this table, there is no requirement and analysis for the element need not to be determined or reported.
C
By agreement between the manufacturer and the purchaser, the limit for niobium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.
D
The terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.
3.1.11 Supplementary requirements, if any (subsize impact into the plate surface. No concavity of contour is permitted
specimens, pipe for hydrofluoric acid alkylation service). unless the resulting thickness of weld metal is equal to or
greaterthantheminimumthicknessoftheadjacentbasemetal.
4. Materials and Manufacture
4.2.3 Radiographic Examination—All welded joints shall
be fully radiographed in accordance with the requirements of
4.1 Manufacture—Except as provided in paragraph 4.2, the
the ASME Boiler and Pressure Vessel Code, Section VIII,
pipeshallbemadebytheseamlessorweldingprocesswiththe
Division 1, latest edition, paragraph UW-51.
addition of no filler metal in the welding operation. Grade 4
4.2.3.1 As an alternative, the welded joints may be ultra-
shall be made by the seamless process.
sonically examined in accordance with Appendix 12 of the
NOTE 2—For electric-fusion-welded pipe, with filler metal added,
ASMEBoilerandPressureVesselCode,SectionVIII,Division
fabricated of pressure vessel quality plates, see Specification A671/
1.
A671M.
4.2.4 Repair Welding—Weld metal defects shall be repaired
4.2 Grade 11 pipe may be produced by welding with or
by removal to sound metal and repair welding if approved by
withouttheadditionoffillermetal.Thefollowingrequirements
the purchaser.
shall apply for Grade 11 welded with the addition of filler
4.2.4.1 The repair shall be blended smoothly into the
metal.
surrounding base metal surface and examined by the magnetic
4.2.1 Thejointsshallbefull-penetration,fullfusiondouble-
particle examination in accordance with Practice E709,orby
welded or single-welded butt joints employing fusion welding
the liquid penetrant method in accordance with Practice
processes as defined in “Definitions,” ASME Boiler and
E165/E165M.
Pressure Vessel Code, Section IX. This specification makes no
4.2.4.2 Eachrepairweldofacavitywherethecavity,before
provision for any difference in weld quality requirements
repair welding, has a depth exceeding the lesser of ⁄8 in. [9.5
regardlessoftheweldjointtypeemployed(singleordouble)in
mm] or 10.5% of the nominal thickness shall be radiographi-
making the weld. Where backing strips are employed, the ring
cally examined as required for the original welds.
or strip material shall be the same as the plate being joined.
4.2.5 Transverse Tension Test—One test shall be made to
Backing rings or strips shall be completely removed after
representeachlot(Note3)offinishedpipe.Thetestspecimens
welding, prior to any required radiography, and the exposed
shall be taken across the welded joint. The tension test results
weldsurfaceshallbeexaminedvisuallyforconformancetothe
of the welded joints shall conform to the tensile properties for
requirements of 4.2.2. Welds made by procedures employing
Grade 11 in Table 2.
backing strips or rings which remain in place are prohibited.
4.2.5.1 Thetestspecimensshallbetakenfromtheendofthe
Weldingproceduresandweldingoperatorsshallbequalifiedin
accordance with ASME Boiler and Pressure Vessel Code, finishedpipe.Asanalternative,thetensiontestspecimensmay
be taken from a welded prolongation of the same material as
Section IX.
thepipe,whichisattachedtotheendofthepipeandweldedas
4.2.2 The weld surface on either side of the weld may be
a prolongation of the pipe longitudinal seam.
flush with the base plate or may have a reasonably uniform
crown, not to exceed ⁄8 in. [3 mm]. Any weld reinforcement 4.2.5.2 The test specimens shall be in accordance with
may be removed at the manufacturer’s option or by agreement Section IX, Part QW, paragraph QW-150 of theASME Boiler
between the manufacturer and purchaser. The contour of the and Pressure Vessel Code and shall be one of the types shown
reinforcement shall be reasonably smooth and free from in QW-462.1 of that code. The tension test specimen may be
irregularities. The deposited metal shall be fused uniformly flattened cold before final machining to size.
A333/A333M−18
TABLE 2 Tensile Requirements
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa
Tensile strength, min 55 000 380 65 000 450 60 000 415 60 000 415 65 000 450 100 000 690 63 000 435 80 000 550 65 000 450
Yield strength, min 30 000 205 35 000 240 35 000 240 35 000 240 35 000 240 75 000 515 46 000 315 65 000 450 35 000 240
Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi-
tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal
Elongation in 2 in. or 50
mm, (or 4D), min, %:
A
Basic minimum 35 25 30 20 30 16.5 30 16.5 30 22 22 . 28 . 22 . 18
elongation for walls ⁄16
in. [8 mm] and over in
thickness, strip tests,
and for all small sizes
tested in full section
When standard round 28 20 22 14 22 12 22 12 22 14 16 . . . 16 . .
2-in. or 50-mm gage
length or proportionally
smaller size test
specimen with the gage
length equal to 4D (4
times the diameter) is
used
B B B B B B B B B B B B B
For strip tests, a 1.75 1.25 1.50 1.00 1.50 1.00 1.50 1.00 1.50 1.00 1.25 . 1.50 . 1.25 . .
deduction for each ⁄32
in. [0.8 mm] decrease in
wall thickness below ⁄16
in. [8 mm] from the
basic minimum
elongation of the
following percentage
C
Elongation in 2 in. or 50 mm, min, %
Wall Thickness
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10
in. mm Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans-
tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse
⁄16 (0.312) 8 35 25 30 20 30 16 30 16 30 22 22 . 28 . 22 .
⁄32 (0.281) 7.2 33 24 28 19 28 15 28 15 28 21 21 . 26 . 21 .
⁄4 (0.250) 6.4 32 23 27 18 27 15 27 15 27 20 20 . 25 . 20 .
⁄32 (0.219) 5.6 30 . 26 . 26 . 26 . 26 . 18 . 24 . 18 .
⁄16 (0.188) 4.8 28 . 24 . 24 . 24 . 24 . 17 . 22 . 17 .
⁄32 (0.156) 4 26 . 22 . 22 . 22 . 22 . 16 . 20 . 16 .
⁄8 (0.125) 3.2 25 . 21 . 21 . 21 . 21 . 15 . 19 . 15 .
⁄32 (0.094) 2.4 23 . 20 . 20 . 20 . 20 . 13 . 18 . 13 .
⁄16 (0.062) 1.6 21 . 18 . 18 . 18 . 18 . 12 . 16 . 12 .
A
Elongation of Grade 11 is for all walls and small sizes tested in full section.
B
The following table gives the calculated minimum values.
C
Calculated elongation requirements shall be rounded to the nearest whole number.
Note—The preceding table gives the computed minimum elongation values for each ⁄32-in. [0.80-mm] decrease in wall thickness. Where the wall thickness lies between
two values shown above, the minimum elongation value is determined by the following equation:
Grade Direction of Test Equation
1 Longitudinal E = 56 t + 17.50 [E = 2.19 t + 17.50]
Transverse E = 40 t + 12.50 [E = 1.56 t + 12.50]
3 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 10.00 [E = 1.25 t + 10.00]
4 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t+6.50[ E = 1.25 t+ 6.50]
6 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t+6.50[ E = 1.25 t + 6.50]
7 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 11.00 [E = 1.25 t + 11.00]
8 and 10 Longitudinal E = 40 t+9.50[ E = 1.56 t + 9.50]
9 Longitudinal E = 48 t + 13.00 [E = 1.87 t + 13.00]
where:
E = elongation in 2 in. or 50 mm, in %, and
t = actual thickness of specimen, in. [mm].
4.2.6 Transverse Guided-Bend Weld Test—One transverse 4.2.6.1 Thetwobendtestspecimensshallbetakenfromthe
guided bend test (two specimens) shall be made to represent weld at the end of the finished pipe. As an alternative, by
each lot (Note 3) of finished pipe. agreementbetweenthepurchaserandthemanufacturer,thetest
A333/A333M−18
TABLE 4 Impact Temperature
specimens may be taken from a test plate of the same material
as the pipe, the test plate being attached to the end of the pipe Impact Test Temperature
Grade
and welded as a prolongation of the pipe longitudinal seam. °F °C
4.2.6.2 The bend test shall be in accordance with QW-160 1 −50 −45
3 −150 −100
of Section IX of the ASME Boiler and Pressure Vessel Code.
4 −150 −100
4.2.7 Charpy V-notch Impact Tests—Impact tests on welded
6 −50 −45
joints shall include tests on weld metal and heat affected zones 7 −100 −75
8 −320 −195
and shall mee
...
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: A333/A333M − 16 A333/A333M − 18
Standard Specification for
Seamless and Welded Steel Pipe for Low-Temperature
Service and Other Applications with Required Notch
Toughness
This standard is issued under the fixed designation A333/A333M; 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 nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low
temperatures and in other applications requiring notch toughness. Several grades of ferritic steel are included as listed in Table 1.
Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on impact
properties.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately 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 used
independently of the other. Combining values from the two systems may result in non-conformance with the standard. The
inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,”
“size,” and “nominal size.”
1.3 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.
2. Referenced Documents
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
A671A671/A671M Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
E165E165/E165M Practice for Liquid Penetrant Examination for General Industry
E709 Guide for Magnetic Particle Testing
2.2 ASME Boiler and Pressure Vessel Code:
Section VIII
Section IX
3. Ordering Information
3.1 Orders for material under this specification should include the following, as required, to describe the material adequately:
3.1.1 Quantity (feet, centimetres, or number of lengths),
3.1.2 Name of material (seamless or welded pipe),
3.1.3 Grade (Table 1),
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.10
on Stainless and Alloy Steel Tubular Products.
Current edition approved March 1, 2016Nov. 1, 2018. Published March 2016November 2018. Originally approved in 1950. Last previous edition approved in 20152016
as A333/A333M – 15.A333/A333M – 16. DOI: 10.1520/A0333_A0333M-16.10.1520/A0333_A0333M-18.
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-333 in Section II of that Code.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*A Summary 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
A333/A333M − 18
B
TABLE 1 Chemical Requirements
Composition, %
Element
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
Carbon, max 0.30 0.19 0.12 0.30 0.19 0.13 0.20 0.20 0.10
A A
Manganese 0.40–1.06 0.31–0.64 0.50–1.05 0.29–1.06 0.90 max 0.90 max 0.40–1.06 1.15–1.50 0.60 max
Phosphorus, 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
max
Sulfur, max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.015 0.025
Silicon . 0.18–0.37 0.08–0.37 0.10 min 0.13–0.32 0.13–0.32 . 0.10–0.35 0.35 max
Nickel . 3.18–3.82 0.47–0.98 0.40 max 2.03–2.57 8.40–9.60 1.60–2.24 0.25 max 35.0–37.0
Chromium . . 0.44–1.01 0.30 max . . . 0.15 max 0.50 max
Copper . . 0.40–0.75 0.40 max . . 0.75–1.25 0.15 max .
Aluminum . . 0.04–0.30 . . . . 0.06 max .
Vanadium, max . . . 0.08 . . . 0.12 .
C
Columbium, . . . 0.02 . . . 0.05 .
max
D C
Niobium , max . . . 0.02 . . . 0.05 .
Molybdenum, . . . 0.12 . . . 0.05 0.50 max
max
Cobalt . . . . . . . . 0.50 max
A
For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.
B
Where an ellipsis (.) appears in this table, there is no requirement and analysis for the element need not to be determined or reported.
C
By agreement between the manufacturer and the purchaser, the limit for columbiumniobium may be increased up to 0.05 % on heat analysis and 0.06 % on product
analysis.
D
The terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.
3.1.4 Size (NPS or outside diameter and schedule number of average wall thickness),
3.1.5 Lengths (specific or random) (Section 9), (see the Permissible Variations in Length section of Specification A999/
A999M),
3.1.6 End finish (see the Ends section of Specification A999/A999M),
3.1.7 Optional requirements, (see the Heat Analysis requirement in the Chemical Composition section of A999/A999M, the
Repair by Welding section, and the section on Nondestructive Test Requirements),
3.1.8 Test report required, (see the Certification section of Specification A999/A999M),
3.1.9 Specification designation, and
3.1.10 Special requirements or exceptions to this specification.
3.1.11 Supplementary requirements, if any (subsize impact specimens, pipe for hydrofluoric acid alkylation service).
4. Materials and Manufacture
4.1 Manufacture—Except as provided in paragraph 4.2, the pipe shall be made by the seamless or welding process with the
addition of no filler metal in the welding operation. Grade 4 shall be made by the seamless process.
NOTE 2—For electric-fusion-welded pipe, with filler metal added, fabricated of pressure vessel quality plates, see Specification A671A671/A671M.
4.2 Grade 11 pipe may be produced by welding with or without the addition of filler metal. The following requirements shall
apply for Grade 11 welded with the addition of filler metal.
4.2.1 The joints shall be full-penetration, full fusion double-welded or single-welded butt joints employing fusion welding
processes as defined in “Definitions,” ASME Boiler and Pressure Vessel 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 strips are employed, the ring or strip material shall be the same as the plate being joined. Backing rings or strips
shall be completely removed after welding, prior to any required radiography, and the exposed weld surface shall be examined
visually for conformance to the requirements of 4.2.2. Welds made by procedures employing backing strips or rings which remain
in place are prohibited. Welding procedures and welding operators shall be qualified in accordance with ASME Boiler and Pressure
Vessel Code, Section IX.
4.2.2 The weld surface on either side of the weld may be flush with the base plate or may have a reasonably uniform crown,
not to exceed ⁄8 in. [3 mm]. Any weld reinforcement may be removed at the manufacturer’s option or by agreement between the
manufacturer and purchaser. The contour of the reinforcement shall be reasonably smooth and free from irregularities. The
deposited metal shall be fused 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 base metal.
4.2.3 Radiographic Examination—All welded joints shall be fully radiographed in accordance with the requirements of the
ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, latest edition, paragraph UW-51.
4.2.3.1 As an alternative, the welded joints may be ultrasonically examined in accordance with Appendix 12 of the ASME
Boiler and Pressure Vessel Code, Section VIII, Division 1.
4.2.4 Repair Welding—Weld metal defects shall be repaired by removal to sound metal and repair welding if approved by the
purchaser.
A333/A333M − 18
4.2.4.1 The repair shall be blended smoothly into the surrounding base metal surface and examined by the magnetic particle
examination in accordance with Practice E709, or by the liquid penetrant method in accordance with Practice E165E165/E165M.
4.2.4.2 Each repair weld of a cavity where the cavity, before repair welding, has a depth exceeding the lesser of ⁄8 in. [9.5 mm]
or 10.5 % of the nominal thickness shall be radiographically examined as required for the original welds.
4.2.5 Transverse Tension Test—One test shall be made to represent each lot (Note 3) of finished pipe. The test specimens shall
be taken across the welded joint. The tension test results of the welded joints shall conform to the tensile properties for Grade 11
in Table 2.
4.2.5.1 The test specimens shall be taken from the end of the finished pipe. As an alternative, the tension test specimens may
be taken from a welded prolongation of the same material as the pipe, which is attached to the end of the pipe and welded as a
prolongation of the pipe longitudinal seam.
4.2.5.2 The test specimens shall be in accordance with Section IX, Part QW, paragraph QW-150 of the ASME Boiler and
Pressure Vessel Code and shall be one of the types shown in QW-462.1 of that code. The tension test specimen may be flattened
cold before final machining to size.
4.2.6 Transverse Guided-Bend Weld Test—One transverse guided bend test (two specimens) shall be made to represent each lot
(Note 3) of finished pipe.
4.2.6.1 The two bend test specimens shall be taken from the weld at the end of the finished pipe. As an alternative, by agreement
between the purchaser and the manufacturer, the test specimens may be taken from a test plate of the same material as the pipe,
the test plate being attached to the end of the pipe and welded as a prolongation of the pipe longitudinal seam.
4.2.6.2 The bend test shall be in accordance with QW-160 of Section IX of the ASME Boiler and Pressure Vessel Code.
4.2.7 Charpy V-notch Impact Tests—Impact tests on welded joints shall include tests on weld metal and heat affected zones and
shall meet the same requirements as the base metal. (See Tables 3 and 4).
4.2.7.1 Each set of weld metal impact test specimens shall be taken across the weld with the notch in the weld metal. Each test
specimen shall be oriented so that the notch is normal to the surface of the material and one face of the specimen shall be within
⁄16 in. [1.5 mm] of the surface of the material.
4.2.7.2 Each set of heat affected zone impact test specimens shall be taken across the weld and of sufficient length to locate,
after etching, the notch in the heat affected zone. The notch shall be cut approximately normal to the surface of the material in such
a manner as to include as much heat affected zone material as possible in the resulting fracture.
NOTE 3—The term “lot” applies to all pipe (may include more than one heat of steel) within a ⁄16 in. [4.7 mm] range of thickness and welded to the
weld procedure, and when heat treated, done to the same heat-treating procedure and in the same furnace. The maximum lot size shall be 200 linear ft
[60 m] of pipe.
4.3 Heat Treatment:
4.3.1 All seamless and welded pipe, other than Grades 8 and 11, shall be treated to control their microstructure in accordance
with one of the following methods:
4.3.1.1 Normalize by heating to a uniform temperature of not less than 1500 °F [815 °C] and cool in air or in the cooling
chamber of an atmosphere controlled furnace.
4.3.1.2 Normalize as in 4.3.1.1, and, at the discretion of the manufacturer, reheat to a suitable tempering temperature.
4.3.1.3 For the seamless process only, reheat and control hot working and the temperature of the hot-finishing operation to a
finishing temperature range from 1550 to 1750 °F [845 to 945 °C] and cool in air or in a controlled atmosphere furnace from an
initial temperature of not less than 1550 °F [845 °C].
4.3.1.4 Treat as in 4.3.1.3 and, at the discretion of the manufacturer, reheat to a suitable tempering temperature.
4.3.1.5 Seamless pipe of Grades 1, 6, and 10 may be heat treated by heating to a uniform temperature of not less than 1500 °F
[815 °C], followed by quenching in liquid and reheating to a suitable tempering temperature, in place of any of the other heat
treatments provided for in 4.3.1.
4.3.2 Grade 8 pipe shall be heat treated by the manufacturer by either of the following methods:
4.3.2.1 Quenched and Tempered—Heat to a uniform temperature of 1475 6 25 °F [800 6 15 °C]; hold at this temperature for
a minimum time in the ratio of 1 h/in. [2 min/mm] of thickness, but in no case less than 15 min; quench by immersion in circulating
water. Reheat until the pipe attains a uniform temperature within the range from 1050 to 1125 °F [565 to 605 °C]; hold at this
temperature for a minimum time in the ratio of 1 h/in. [2 min/mm] of thickness, but in no case less than 15 min; cool in air or
water quench at a rate no less than 300 °F [165 °C]/h.
4.3.2.2 Double Normalized and Tempered—Heat to a uniform temperature of 1650 6 25 °F [900 6 15 °C]; hold at this
temperature for a minimum time in the ratio of 1 h/in. [2 min/mm] of thickness, but in no case less than 15 min; cool in air. Reheat
until the pipe attains a uniform temperature of 1450 6 25 °F [790 6 15 °C]; hold at this temperature for a minimum time in the
ratio of 1 h/in. [2 min/mm] of thickness, but in no case less than 15 min; cool in air. Rehea
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A333/A333M − 18
Standard Specification for
Seamless and Welded Steel Pipe for Low-Temperature
Service and Other Applications with Required Notch
Toughness
This standard is issued under the fixed designation A333/A333M; 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* A999/A999M Specification for General Requirements for
2 Alloy and Stainless Steel Pipe
1.1 This specification covers nominal (average) wall seam-
A671/A671M Specification for Electric-Fusion-Welded
less and welded carbon and alloy steel pipe intended for use at
Steel Pipe for Atmospheric and Lower Temperatures
low temperatures and in other applications requiring notch
E23 Test Methods for Notched Bar Impact Testing of Me-
toughness. Several grades of ferritic steel are included as listed
tallic Materials
in Table 1. Some product sizes may not be available under this
E165/E165M Practice for Liquid Penetrant Examination for
specification because heavier wall thicknesses have an adverse
General Industry
effect on impact properties.
E709 Guide for Magnetic Particle Testing
1.2 The values stated in either SI units or inch-pound units
2.2 ASME Boiler and Pressure Vessel Code:
are to be regarded separately as standard. Within the text, the
Section VIII
SI units are shown in brackets. The values stated in each
Section IX
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values
3. Ordering Information
from the two systems may result in non-conformance with the
standard. The inch-pound units shall apply unless the “M” 3.1 Orders for material under this specification should
include the following, as required, to describe the material
designation of this specification is specified in the order.
adequately:
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
3.1.1 Quantity (feet, centimetres, or number of lengths),
been substituted in this standard for such traditional terms as “nominal
3.1.2 Name of material (seamless or welded pipe),
diameter,” “size,” and “nominal size.”
3.1.3 Grade (Table 1),
1.3 This international standard was developed in accor-
3.1.4 Size (NPS or outside diameter and schedule number of
dance with internationally recognized principles on standard-
average wall thickness),
ization established in the Decision on Principles for the
3.1.5 Lengths (specific or random) (Section 9), (see the
Development of International Standards, Guides and Recom-
Permissible Variations in Length section of Specification
mendations issued by the World Trade Organization Technical
A999/A999M),
Barriers to Trade (TBT) Committee.
3.1.6 End finish (see the Ends section of Specification
2. Referenced Documents
A999/A999M),
3.1.7 Optional requirements, (see the Heat Analysis require-
2.1 ASTM Standards:
ment in the Chemical Composition section of A999/A999M,
A370 Test Methods and Definitions for Mechanical Testing
the Repair by Welding section, and the section on Nondestruc-
of Steel Products
tive Test Requirements),
1 3.1.8 Test report required, (see the Certification section of
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Specification A999/A999M),
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.10 on Stainless and Alloy Steel Tubular Products.
3.1.9 Specification designation, and
Current edition approved Nov. 1, 2018. Published November 2018. Originally
3.1.10 Special requirements or exceptions to this specifica-
approved in 1950. Last previous edition approved in 2016 as A333/A333M – 16.
tion.
DOI: 10.1520/A0333_A0333M-18.
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-333 in Section II of that Code.
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 Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.org.
*A Summary 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
A333/A333M − 18
B
TABLE 1 Chemical Requirements
Composition, %
Element
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
Carbon, max 0.30 0.19 0.12 0.30 0.19 0.13 0.20 0.20 0.10
A A
Manganese 0.40–1.06 0.31–0.64 0.50–1.05 0.29–1.06 0.90 max 0.90 max 0.40–1.06 1.15–1.50 0.60 max
Phosphorus, 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.035 0.025
max
Sulfur, max 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.015 0.025
Silicon . 0.18–0.37 0.08–0.37 0.10 min 0.13–0.32 0.13–0.32 . 0.10–0.35 0.35 max
Nickel . 3.18–3.82 0.47–0.98 0.40 max 2.03–2.57 8.40–9.60 1.60–2.24 0.25 max 35.0–37.0
Chromium . . 0.44–1.01 0.30 max . . . 0.15 max 0.50 max
Copper . . 0.40–0.75 0.40 max . . 0.75–1.25 0.15 max .
Aluminum . . 0.04–0.30 . . . . 0.06 max .
Vanadium, max . . . 0.08 . . . 0.12 .
D C
Niobium , max . . . 0.02 . . . 0.05 .
Molybdenum, . . . 0.12 . . . 0.05 0.50 max
max
Cobalt . . . . . . . . 0.50 max
A
For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.
B
Where an ellipsis (.) appears in this table, there is no requirement and analysis for the element need not to be determined or reported.
C
By agreement between the manufacturer and the purchaser, the limit for niobium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.
D
The terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.
3.1.11 Supplementary requirements, if any (subsize impact into the plate surface. No concavity of contour is permitted
specimens, pipe for hydrofluoric acid alkylation service). unless the resulting thickness of weld metal is equal to or
greater than the minimum thickness of the adjacent base metal.
4. Materials and Manufacture
4.2.3 Radiographic Examination—All welded joints shall
be fully radiographed in accordance with the requirements of
4.1 Manufacture—Except as provided in paragraph 4.2, the
the ASME Boiler and Pressure Vessel Code, Section VIII,
pipe shall be made by the seamless or welding process with the
Division 1, latest edition, paragraph UW-51.
addition of no filler metal in the welding operation. Grade 4
shall be made by the seamless process. 4.2.3.1 As an alternative, the welded joints may be ultra-
sonically examined in accordance with Appendix 12 of the
NOTE 2—For electric-fusion-welded pipe, with filler metal added,
ASME Boiler and Pressure Vessel Code, Section VIII, Division
fabricated of pressure vessel quality plates, see Specification A671/
1.
A671M.
4.2.4 Repair Welding—Weld metal defects shall be repaired
4.2 Grade 11 pipe may be produced by welding with or
by removal to sound metal and repair welding if approved by
without the addition of filler metal. The following requirements
the purchaser.
shall apply for Grade 11 welded with the addition of filler
4.2.4.1 The repair shall be blended smoothly into the
metal.
surrounding base metal surface and examined by the magnetic
4.2.1 The joints shall be full-penetration, full fusion double-
particle examination in accordance with Practice E709, or by
welded or single-welded butt joints employing fusion welding
the liquid penetrant method in accordance with Practice
processes as defined in “Definitions,” ASME Boiler and
E165/E165M.
Pressure Vessel Code, Section IX. This specification makes no
4.2.4.2 Each repair weld of a cavity where the cavity, before
provision for any difference in weld quality requirements
repair welding, has a depth exceeding the lesser of ⁄8 in. [9.5
regardless of the weld joint type employed (single or double) in
mm] or 10.5 % of the nominal thickness shall be radiographi-
making the weld. Where backing strips are employed, the ring
cally examined as required for the original welds.
or strip material shall be the same as the plate being joined.
4.2.5 Transverse Tension Test—One test shall be made to
Backing rings or strips shall be completely removed after
represent each lot (Note 3) of finished pipe. The test specimens
welding, prior to any required radiography, and the exposed
shall be taken across the welded joint. The tension test results
weld surface shall be examined visually for conformance to the
of the welded joints shall conform to the tensile properties for
requirements of 4.2.2. Welds made by procedures employing
Grade 11 in Table 2.
backing strips or rings which remain in place are prohibited.
Welding procedures and welding operators shall be qualified in 4.2.5.1 The test specimens shall be taken from the end of the
finished pipe. As an alternative, the tension test specimens may
accordance with ASME Boiler and Pressure Vessel Code,
be taken from a welded prolongation of the same material as
Section IX.
the pipe, which is attached to the end of the pipe and welded as
4.2.2 The weld surface on either side of the weld may be
a prolongation of the pipe longitudinal seam.
flush with the base plate or may have a reasonably uniform
crown, not to exceed ⁄8 in. [3 mm]. Any weld reinforcement 4.2.5.2 The test specimens shall be in accordance with
may be removed at the manufacturer’s option or by agreement Section IX, Part QW, paragraph QW-150 of the ASME Boiler
between the manufacturer and purchaser. The contour of the and Pressure Vessel Code and shall be one of the types shown
reinforcement shall be reasonably smooth and free from in QW-462.1 of that code. The tension test specimen may be
irregularities. The deposited metal shall be fused uniformly flattened cold before final machining to size.
A333/A333M − 18
TABLE 2 Tensile Requirements
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11
psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa psi MPa
Tensile strength, min 55 000 380 65 000 450 60 000 415 60 000 415 65 000 450 100 000 690 63 000 435 80 000 550 65 000 450
Yield strength, min 30 000 205 35 000 240 35 000 240 35 000 240 35 000 240 75 000 515 46 000 315 65 000 450 35 000 240
Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi-
tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal
Elongation in 2 in. or 50
mm, (or 4D), min, %:
A
Basic minimum 35 25 30 20 30 16.5 30 16.5 30 22 22 . 28 . 22 . 18
elongation for walls ⁄16
in. [8 mm] and over in
thickness, strip tests,
and for all small sizes
tested in full section
When standard round 28 20 22 14 22 12 22 12 22 14 16 . . . 16 . .
2-in. or 50-mm gage
length or proportionally
smaller size test
specimen with the gage
length equal to 4D (4
times the diameter) is
used
B B B B B B B B B B B B B
For strip tests, a 1.75 1.25 1.50 1.00 1.50 1.00 1.50 1.00 1.50 1.00 1.25 . 1.50 . 1.25 . .
deduction for each ⁄32
in. [0.8 mm] decrease in
wall thickness below ⁄16
in. [8 mm] from the
basic minimum
elongation of the
following percentage
C
Elongation in 2 in. or 50 mm, min, %
Wall Thickness
Grade 1 Grade 3 Grade 4 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10
in. mm Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans- Longi- Trans-
tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse tudinal verse
⁄16 (0.312) 8 35 25 30 20 30 16 30 16 30 22 22 . 28 . 22 .
⁄32 (0.281) 7.2 33 24 28 19 28 15 28 15 28 21 21 . 26 . 21 .
⁄4 (0.250) 6.4 32 23 27 18 27 15 27 15 27 20 20 . 25 . 20 .
⁄32 (0.219) 5.6 30 . 26 . 26 . 26 . 26 . 18 . 24 . 18 .
⁄16 (0.188) 4.8 28 . 24 . 24 . 24 . 24 . 17 . 22 . 17 .
⁄32 (0.156) 4 26 . 22 . 22 . 22 . 22 . 16 . 20 . 16 .
⁄8 (0.125) 3.2 25 . 21 . 21 . 21 . 21 . 15 . 19 . 15 .
⁄32 (0.094) 2.4 23 . 20 . 20 . 20 . 20 . 13 . 18 . 13 .
⁄16 (0.062) 1.6 21 . 18 . 18 . 18 . 18 . 12 . 16 . 12 .
A
Elongation of Grade 11 is for all walls and small sizes tested in full section.
B
The following table gives the calculated minimum values.
C
Calculated elongation requirements shall be rounded to the nearest whole number.
Note—The preceding table gives the computed minimum elongation values for each ⁄32-in. [0.80-mm] decrease in wall thickness. Where the wall thickness lies between
two values shown above, the minimum elongation value is determined by the following equation:
Grade Direction of Test Equation
1 Longitudinal E = 56 t + 17.50 [E = 2.19 t + 17.50]
Transverse E = 40 t + 12.50 [E = 1.56 t + 12.50]
3 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 10.00 [E = 1.25 t + 10.00]
4 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 6.50 [ E = 1.25 t+ 6.50]
6 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 6.50 [ E = 1.25 t + 6.50]
7 Longitudinal E = 48 t + 15.00 [E = 1.87 t + 15.00]
Transverse E = 32 t + 11.00 [E = 1.25 t + 11.00]
8 and 10 Longitudinal E = 40 t + 9.50 [ E = 1.56 t + 9.50]
9 Longitudinal E = 48 t + 13.00 [E = 1.87 t + 13.00]
where:
E = elongation in 2 in. or 50 mm, in %, and
t = actual thickness of specimen, in. [mm].
4.2.6 Transverse Guided-Bend Weld Test—One transverse 4.2.6.1 The two bend test specimens shall be taken from the
guided bend test (two specimens) shall be made to represent weld at the end of the finished pipe. As an alternative, by
each lot (Note 3) of finished pipe. agreement between the purchaser and the manufacturer, the test
A333/A333M − 18
TABLE 4 Impact Temperature
specimens may be taken from a test plate of the same material
as the pipe, the test plate being attached to the end of the pipe Impact Test Temperature
Grade
and welded as a prolongation of the pipe longitudinal seam. °F °C
4.2.6.2 The bend test shall be in accordance with QW-160 1 −50 −45
3 −150 −100
of Section IX of the ASME Boiler and Pressure Vessel Code.
4 −150 −100
4.2.7 Charpy V-notch Impact Tests—Impact tests on welded
6 −50 −45
joints shall include
...
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