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ASTM A543/A543M-93(2004)e1
Standard Specification for Pressure Vessel Plates, Alloy Steel, Quenched and Tempered Nickel-Chromium-Molybdenum
3 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
77.140.30 Steels for pressure purposes / Стали для работы под давлением
Сборник (ASTM):
01.04 Steel--Structural, Reinforcing, Pressure Vessel, Railway / Сталь - Конструкционная, арматурная, для сосудов под давлением, рельсовая
Тематика:
Steel--Structural, Tubes, Plate, Coated
Описание
Реферат

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. Material under this specification is available in two types, B and C. The material is also available in three classes as follows: Class 1; Class 2; and Class 3. The steel shall be killed and shall conform to the fine austenitic grain size requirement. All plates shall be heat treated by heating to a suitable austenitizing temperature. The steel shall conform to the chemical requirements specified. Tension tests shall be made to meet the required specifications.

Область применения

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:

Class Minimum Tensile Strength, 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.