ASTM A735/A735M-03
(Specification)Standard Specification for Pressure Vessel Plates, Low-Carbon Manganese-Molybdenum-Columbium Alloy Steel, for Moderate and Lower Temperature Service
Standard Specification for Pressure Vessel Plates, Low-Carbon Manganese-Molybdenum-Columbium Alloy Steel, for Moderate and Lower Temperature Service
SCOPE
1.1 This specification covers low-carbon manganese-molybdenum-columbium alloy steel plates for piping components and welded pressure vessels.
1.2 Four different classes are covered, which provide various tensile strength properties. A Charpy V-notch energy absorption requirement of 20 ftl·bf [27J] at -50°F [-45°C] is specified for all grades.
1.2.1 Classes 1 and 2 provide minimum yield strength levels of 65 ksi [450 MPa] and 70 ksi [485 MPa] respectively. Both classes can be provided in the as-rolled condition or in the quenched-and-tempered condition.
1.2.2 Class 3 provides a minimum yield strength level of 75 ksi [515 MPa]. This grade can be provided in the as-rolled and precipitation heat-treated condition or in the quenched-and-tempered condition.
1.2.3 Class 4 provides a yield strength level of 80 ksi [550 MPa] in the as-rolled and precipitation heat-treated condition.
1.3 Current practice limits plate thickness furnished under this specification. The individual manufacturer should be consulted on size and thickness limitations.
1.4 Welding procedures are of fundamental importance and must be such as not to adversely affect the properties of the material, especially in the heat-affected zone. It is presupposed that welding procedures will be suitable for the materials being welded.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as 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.
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Designation: A 735/A 735M – 03
Standard Specification for
Pressure Vessel Plates, Low-Carbon Manganese-
Molybdenum-Columbium Alloy Steel, for Moderate and
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Lower Temperature Service
ThisstandardisissuedunderthefixeddesignationA735/A735M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* A 20/A 20M Specification for General Requirements for
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Steel Plates for Pressure Vessels
1.1 This specification covers low-carbon manganese-
A 435/A 435M Specification for Straight-Beam Ultrasonic
molybdenum-columbium alloy steel plates for piping compo-
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Examination of Steel Plates
nents and welded pressure vessels.
A 577/A 577M Specification for Ultrasonic Angle-Beam
1.2 Four different classes are covered, which provide vari-
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Examination of Steel Plates
ous tensile strength properties. A Charpy V-notch energy
A 578/A 578M Specification for Straight-Beam Ultrasonic
absorption requirement of 20 ft·lbf [27J] at −50°F [−45°C] is
Examination of Plain and Clad Steel Plates for Special
specified for all grades.
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Applications
1.2.1 Classes 1 and 2 provide minimum yield strength
levels of 65 ksi [450 MPa] and 70 ksi [485 MPa] respectively.
3. General Requirements and Ordering Information
Bothclassescanbeprovidedintheas-rolledconditionorinthe
3.1 Plates supplied to this product specification shall con-
quenched-and-tempered condition.
form to the requirements of Specification A 20/A 20M, which
1.2.2 Class 3 provides a minimum yield strength level of
outlines the testing and retesting methods and procedures,
75 ksi [515 MPa]. This grade can be provided in the as-rolled
permissible variations in dimensions and mass, quality and
and precipitation heat-treated condition or in the quenched-
repair of defects, marking, loading, and so forth.
and-tempered condition.
3.2 Specification A 20/A 20M also establishes the rules for
1.2.3 Class 4 provides a yield strength level of 80 ksi [550
orderinginformationthatshouldbecompiledwhenpurchasing
MPa] in the as-rolled and precipitation heat-treated condition.
plates to this specification.
1.3 Current practice limits plate thickness furnished under
3.3 In addition to the basic requirements of this specifica-
this specification. The individual manufacturer should be
tion, certain supplementary requirements are available where
consulted on size and thickness limitations.
additional control, testing, or examination is required to meet
1.4 Welding procedures are of fundamental importance and
the end use requirements.
must be such as not to adversely affect the properties of the
3.4 The purchaser is referred to the listed supplementary
material, especially in the heat-affected zone. It is presupposed
requirements in this specification and to the detailed require-
thatweldingprocedureswillbesuitableforthematerialsbeing
ments in Specification A 20/A 20M.
welded.
3.5 Coils are excluded from qualification to this specifica-
1.5 The values stated in either inch-pound units or SI units
tion until they are processed into finished plates. Plates
are to be regarded separately as standard. Within the text, the
produced from coil means plates that have been cut to
SI units are shown in brackets. The values stated in each
individuallengthsfromcoil.Theprocessordirectlycontrols,or
system are not exact equivalents; therefore, each system must
is responsible for, the operations involved in the processing of
beusedindependentlyoftheother.Combiningvaluesfromthe
coils into finished plates. Such operations include decoiling,
two systems may result in nonconformance with the specifi-
leveling, cutting to length, testing, inspection, conditioning,
cation.
heat treatment (if applicable), packaging, marking, loading for
2. Referenced Documents shipment, and certification.
2.1 ASTM Standards:
NOTE 1—For plates produced from coil and furnished without heat
treatment or with stress relieving only, three test results are reported for
each qualifying coil. Additional requirements regarding plates from coil
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are described in Specfication A 20/A 20M.
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.11 on Steel Plates for Boilers and Pressure Vessels.
Current edition approved Sept. 10, 2003. Published October 2003. Originally
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approved in 1976. Last previous edition approved in 1999 as A 735/A 735M – 99. Annual Book of ASTM Standards, Vol 01.04.
*ASummary 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.
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