ASTM-A543 › Standard Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempered Nickel-Chromium-Molybdenum
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Scope
1.1 This specification covers nickel-chromium-molybdenum alloy steel plates for use in the quenched and tempered condition, intended for the fabrication of welded pressure vessels and other pressure equipment. These alloy compositions are normally considered for construction involving plate thicknesses of 2 in. [50 mm] or greater.
1.2 Material under this specification is available in two types, B and C. The material is also available in three classes as follows:
Minimum Tensile Strength, Class ksi [MPa] 1 105 [725] 2 115 [795] 3 90 [620]1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements.
1.4 The minimum plate thickness is 3/16 in. [5 mm].
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.
Keywords
Molybdenum alloys-steel plate; Nickel-chromium-molybdenum alloy steel; Pressure vessel steel materials-plates; Steel plate-nickel alloy; plates-Ni-Cr-Mo alloy steel, quenched/tempered (for welded pressure; vessels), spec; ICS Number Code 77.140.30 (Steels for pressure purposes)
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01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)
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Document Number
ASTM-A0543_A0543M-09R21
Revision Level
2009 R21 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Sept. 1, 2021
Document Type
Specification
Page Count
3 pages
Committee Number
A01.11