ASTM A694 PDF

More A A chemical heat analysis of the steel shall be made, and the steel shall conform to specified chemical composition requirements. Materials adhere to testing and tensile property requirements as well. This abstract is a brief summary of the referenced standard.

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Reference Standard In addition to the reference standards listed in Specification A, the following standards also apply to this specification. And if this specification is inconsistent with the specification A , this specification shall be primary followed. Manufacturing process Melting Process The steel material under A shall adopt one of the following smelting processes: open furnace, electric furnace or oxygen top-blown converter.

Moreover, steel should be completely deoxidized. As agreed by the buyer and manufacturer, the material shall be carbon steel, high strength low alloy steel or alloy steel. Further more, manufacturer shall report the chemical composition of the used material. Manufacturing Practice: Forging materials include ingots or billets, billets, slabs or forged, rolled rods, and cut to the specified length according to the appropriate process.

Hot working shall be sufficient to develop a wrought structure throughout the part. Flanges shall not be machined directly from plate nor from solid bar stock. Heat treatment All forgings should be heat treated. The heat treatment of carbon steel and high-strength low-alloy steel should be normalized, normalized or tempered or quenched and tempered. The heat treatment of alloy steel is aging treatment with quenching and precipitation or aging treatment with quenching and precipitation.

Chemical composition The smelting analysis shall be carried out in accordance with the provisions of Specification A, and the results of the analysis shall comply with the chemical composition requirements given in Table 2.

Chemical Requirements.

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