ASTM A20/A20M-11 PDF

1.1 This general requirements specification covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled steel plates for pressure vessels covered by each of the following product specifications issued by ASTM:

Title of SpecificationASTM DesignationA Pressure Vessel Plates, Alloy Steel, Nickel A203/A203M Pressure Vessel Plates, Alloy Steel, MolybdenumA204/A204M Pressure Vessel Plates, Alloy Steel, Manganese-
Vanadium A225/A225M Pressure Vessel Plates, Carbon Steel, Low- and
Intermediate-Tensile StrengthA285/A285M Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299M Pressure Vessel Plates, Alloy Steel, Manganese-
Molybdenum and Manganese-Molybdenum-NickelA302/A302M Pressure Vessel Plates, Alloy Steel, 9 Percent Nickel
Double-Normalized and TemperedA353/A353M Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum A387/A387M Pressure Vessel Plates, Carbon Steel, High Strength
ManganeseA455/A455M Pressure Vessel Plates, Carbon Steel, for Intermediate-
and Higher-Temperature Service A515/A515M Pressure Vessel Plates, Carbon Steel, Moderate- and
Lower-Temperature ServiceA516/A516M Pressure Vessel Plates, Alloy Steel, High-Strength,
Quenched and TemperedA517/A517M Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered Manganese-Molybdenum and Manganese-
Molybdenum- NickelA533/A533M Pressure Vessel Plates, Heat-Treated, Carbon-
Manganese-Silicon SteelA537/A537M Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered Chromium-Molybdenum A542/A542M Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered Nickel-Chromium-Molybdenum A543/A543M Pressure Vessel Plates, Alloy Steel, Quenched and
Tempered 8 and 9 Percent NickelA553/A553M Title of SpecificationASTM DesignationA Pressure Vessel Plates, Carbon Steel, Manganese-
Titanium for Glass or Diffused Metallic CoatingsA562/A562M Pressure Vessel Plates, Carbon Steel, High Strength, for
Moderate and Lower Temperature ServiceA612/A612M Pressure Vessel Plates, Five Percent Nickel Alloy Steel,
Specially Heat TreatedA645/A645M Pressure Vessel Plates, Carbon-Manganese, for
Moderate and Lower Temperature ServiceA662/A662M Pressure Vessel Plates, Carbon Steel, Quenched and
Tempered, for Welded Layered Pressure VesselsA724/A724M Pressure Vessel Plates, Alloy Steel and High-Strength
Low-Alloy Steel, Quenched and TemperedA734/A734M Pressure Vessel Plates, Low-Carbon Manganese-
Molybdenum-Columbium Alloy Steel, for Moderate and
Lower Temperature Service A735/A735M Pressure Vessel Plates, Low-Carbon Age-Hardening
Nickel-Copper-Chromium-Molybdenum-Columbium
Alloy SteelA736/A736M Pressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737M Pressure Vessel Plates, Heat-Treated, Carbon-
Manganese-Silicon Steel, for Moderate and Lower
Temperature ServiceA738/A738M Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum-VanadiumA832/A832M Pressure Vessel Plates, Produced by the Thermo-
Mechanical Control Process (TMCP) A841/A841M Pressure Vessel Plates, 9 % Nickel Alloy, Produced
by the Direct-Quenching ProcessA844/A844M Pressure Vessel Plates, 9 % Nickel Alloy, Produced
by the Direct-Quenching ProcessA844/A844M Pressure Vessel Plates, 9 % Nickel Alloy, Produced
by the Direct-Quenching ProcessA844/A844M Pressure Vessel Plates, Alloy Steel, Chromium-
Molybdenum-TungstenA1017/A1017M Pressure Vessel Plates, Alloy Steel, Higher Strength
Chromium-Molybdenum-TungstenA1041/A1041M

A These designations refer to the latest issue of the respective specification which appears in the Annual Book of ASTM Standards, Vol 01.04.

1.1.1 This general requirements specification also covers a group of supplementary requirements that are applicable to several of the above product specifications as indicated therein. Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if specified individually in the purchase order.

1.2 Appendix X1 provides information on coil as a source of plates for pressure vessels.

1.3 Appendix X2 provides information on the variability of tensile properties in plates for pressure vessels.

1.4 Appendix X3 provides information on the variability of Charpy-V-Notch impact test properties in plates for pressure vessels.

1.5 Appendix X4 provides information on cold bending of plates, including suggested minimum inside radii for cold bending.

1.6 These materials are intended to be suitable for fusion welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized.

1.7 In case of any conflict in requirements, the requirements of the applicable product specification prevail over those of this general requirements specification.

1.8 Additional requirements that are specified in the purchase order and accepted by the supplier are permitted, provided that such requirements do not negate any of the requirements of this general requirements specification or the applicable product specification.

1.9 For purposes of determining conformance with this general requirements specification and the applicable product specification, values are to be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.

1.10 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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.

1.11 This general requirements specification and the applicable product specification are expressed in both inch-pound units and SI units; unless the order specifies the applicable "M" specification designation (SI units), the plates are to be furnished to inch-pound units.

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Published :	11/01/2011
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