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ASTM A533/A533M-93(1999)

Historical Reaffirmation

Standard Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempered, Manganese-Molybdenum and Manganese-Molybdenum-Nickel

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1.1 This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates for use in the quenched and tempered condition for the construction of welded pressure vessels.

1.2 This specification includes four types of chemical analysis and three classes of strength levels as follows:

Nominal Nominal Molybdenum Nickel Content, Content, Type % % A 0.50 ... B 0.50 0.55 C 0.50 0.85 D 0.50 0.30 Tensile Strength, Class ksi [MPa] 1 80-100 [550 to 690] 2 90-115 [620 to 795] 3 100-125 [690 to 860]

1.3 The maximum thickness of Class 1 and Class 2 plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness to 12 in. [300 mm].

1.4 The maximum thickness of Class 3 plates is 2 1/2 in. [65 mm].

1.5 The minimum nominal thickness of plates of all classes is 0.25 in. [6.5 mm].

1.6 These alloy steel plates in the as-rolled condition are sensitive to cracking during transit and handling, particularly in thicknesses over about 1 or 2 in. [25 or 50 mm]. They should be shipped in the as-rolled conditions only with the mutual agreement of manufacturer and fabricator.

1.7 Plates covered by this specification are often used in the beltline region of nuclear reactor vessels where the material properties may be affected by high levels of radiation. Appendix X1 provides some information pertinent to this usage.

1.8 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.


SDO ASTM: ASTM International
Document Number A533
Publication Date Sept. 10, 1999
Language en - English
Page Count 3
Revision Level 93(1999)
Supercedes
Committee A01.11
Publish Date Document Id Type View
March 1, 2024 A0533_A0533M-24 Revision
May 1, 2016 A0533_A0533M-16 Revision
Oct. 1, 2009 A0533_A0533M-09E01 Revision
Oct. 1, 2009 A0533_A0533M-09 Revision
March 1, 2014 A0533_A0533M-09R14 Reaffirmation
Sept. 1, 2004 A0533_A0533M-93R04E01 Reaffirmation
Sept. 10, 1999 A0533_A0533M-93R99 Reaffirmation