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Scope

1.1 This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels.

1.2 Material under this specification is available in four grades having different strength levels as follows:

Grade Tensile Strength, ksi [MPa] Type A 75-95 [515-655] Mn-Mo B 80-100 [550-690] Mn-Mo C 80-100 [550-690] Mn-Mo-Ni D 80-100 [550-690] Mn-Mo-Ni

1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements. The minimum thickness is limited to 0.25 in. [6.5 mm].

1.4 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

Manganese-molybdenum-nickel alloy; Pressure vessel steel materials-plates; Steel plate-manganese alloy; plates-Mn-Mo/Mn-Mo-Ni alloy steel, for welded boilers/pressure vessels; ICS Number Code 77.140.30 (Steels for pressure purposes); 77.140.50 (Flat steel products and semi-products)

To find similar documents by ASTM Volume:

01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)

To find similar documents by classification:

77.140.30 (Steels for pressure purposes Steels for pressure pipes and tubes for specific use, see 77.140.75)

77.140.50 (Flat steel products and semi-products Including plate, sheet and strip Steel strips for springs, see 77.140.25)

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