ASTM A612-2019 pdf free download

ASTM A612-2019 pdf free download.Standard Specification for Pressure Vessel Plates, Carbon Steel, High Strength, for Moderate and Lower Temperature Service
1. Scope
1.1 This specification 2 covers killed carbon-manganese- silicon steel plates intended for welded pressure vessels in service at moderate and lower temperatures. 1.2 The maximum thickness of plates supplied under this specification is 1 in. [25 mm]. 1.3 For plates produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply. 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 ofthe other. Combining values from the two systems may result in nonconformance with the specifi- cation. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. General Requirements and Ordering Information
3.1 Material supplied to this product specification shall conform to Specification A20/A20M. These requirements out- line the testing and retesting methods and procedures, permit- ted variations in dimensions and mass, quality and repair of defects, marking, loading, and ordering information. 3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available where additional control, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementary requirements in this specification and to the detailed requirements in Specification A20/A20M. 3.3 Coils are excluded from qualification to this specifica- tion until they are processed into finished plates. Plates produced from coil means plates that have been cut to individual lengths from coil. The processor directly controls, or is responsible for, the operations involved in the processing of coils into finished plates. Such operations include decoiling, leveling, cutting to length, testing, inspection, conditioning, heat treatment (if applicable), packaging, marking, loading for shipment, and certification. N OTE 1—For plates produced from coil and furnished without heat treatment or with stress relieving only, three test results are reported for each qualifying coil. Additional requirements regarding plates from coil are described in Specification A20/A20M. 3.4 If the requirements of this specification are in conflict with the requirements ofSpecification A20/A20M, the require- ments of this specification shall prevail.
4. Materials and Manufacture
4.1 Steelmaking Practice—The steel shall be killed and shall conform to the fine austenitic grain size requirement of Specification A20/A20M.
5. Heat Treatment
5.1 Plates are normally supplied in the as-rolled condition. Plates may be ordered normalized or stress relieved, or both.
6. Chemical Composition
6.1 The steel shall conform to the requirements as to chemical composition given in Table 1 unless otherwise modified in accordance with Supplementary Requirement S17, Vacuum Carbon-Deoxidized Steel, in Specification A20/ A20M.
7. Mechanical Properties
7.1 Tension Test—The plates, as represented by the tension test specimens, shall conform to the requirements given in Table 2.
8. Keywords
8.1 carbon steel; steel plates for pressure vessels; lower temperature service; high strength steel plates