ASTM A515 Standard Specification for Pressure Vessel Plates,Carbon Steel,for Intermediate- and Higher-Temperature Service

ASTM A515 Standard Specification for Pressure Vessel Plates,Carbon Steel,for Intermediate- and Higher-Temperature Service

1.1 This specification2 covers carbon-silicon steel plates primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels.

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

Tensile Strength, Grade U.S.[SI]ksi [MPa]

60[415]   60-80[415-550]

65[450]   65-85[450-585]   

70[485]   70-90[485-620]

1.3 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current prac-tice normally limits the maximum thickness of plates fur-nished under this specification as follows:

Maximum Thickness, Grade U.S.[SI]in.[mm]

60[415]    8[200]

65[450]    8[200]   

70[485]    8[200]

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.