Standard
Historical
Last Updated: Jan 20, 2014
Track Document
ASTM A266/A266M-11
Standard Specification for Carbon Steel Forgings for Pressure Vessel Components
Standard Specification for Carbon Steel Forgings for Pressure Vessel Components
A0266_A0266M-11
ASTM|A0266_A0266M-11|en-US
Standard Specification for Carbon Steel Forgings for Pressure Vessel Components
Standard
A266/A266M Standard Specification for Carbon Steel Forgings for Pressure Vessel Components>
new
BOS Vol. 01.05 Committee A01
$
77.00
In stock
Abstract
This specification covers four grades of carbon steel forgings for boiler and pressure vessel components, and associated equipment. Materials shall be manufactured by melting process and hot-worked forging. Heat and product analyses shall be performed wherein forgings shall conform to chemical requirements for carbon, manganese, phosphorus, sulphur, and silicon. Mechanical properties such as tensile strength, yield strength, elongation, and reduction of area shall be inspected as well. The requirements for annealed, normalized, or normalized and tempered steel forgings, and that for quenched and tempered steel forgings have been specified separately.
Scope
1.1 This specification covers four grades of carbon steel forgings for boilers, pressure vessels, and associated equipment.
Note 1—Designations have been changed as follows:
| Current | Formerly |
| Grade 1 | Class 1 |
| Grade 2 | Class 2 |
| Grade 3 | Class 3 |
| Grade 4 | Class 4 |
1.2 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.