Standard Specification for Pressure Vessel Plates, Low-Carbon Age-Hardening Nickel-Copper-Chromium-Molybdenum-Columbium Alloy Steel
|Publication Date:||1 November 2012|
|ICS Code (Steels for pressure purposes):||77.140.30|
This specification2 covers low-carbon age-hardening
alloy steel plates for welded pressure vessels and piping
components. The specification covers nickel-copperchromiu
Plates under this specification are available as follows:
Available in Grade A, Class 3 only.
Quenched and precipitation heat treated with a minimum specified tensile strength of 85 ksi for thinner plates and 75 and 70 ksi for thicker plates, with the minimum tensile strength dependent upon the plate thickness. The maximum thickness of Grade A, Class 3 plates is limited only by the capacity of the chemical composition and heat treatment to meet the specified mechanical property requirements; however, current practice usually limits the maximum thickness to 8 in. [200 mm].
This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished in inch-pound units.
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 this specification.
2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-736 in Section II of that Code.
*A Summary of Changes section appears at the end of this standard