ASTM A322 PDF

More A The steel shall be made by one or more of the following primary processes: open-hearth, basic-oxygen, or electric-furnace. The primary melting may incorporate separate degassing or refining and may be followed by secondary melting using electro-slag remelting or vacuum arc remelting. Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single primary heat. The steel shall be furnished as strand cast or ingot cast. Immediately after hot forming, the bars shall be allowed to cool to a temperature below the critical range under suitable conditions to prevent imperfections caused by too rapid cooling.

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G 0. Standard Boron Steels G 50B44 0. G 50B46 0. G 50B50 0. G 50B60 0. G 51B60 0. G 81B45 0. These elements are considered as incidental and may be present to the following maximum amounts: copper 0. B Standard alloy steels can be produced with a lead range of 0. Such steels are identied by inserting the letter L between the second and third numerals of the number, that is, 41L Grade compositions correspond to the respective AISI compositions. E Where minimum and maximum sulfur contents are shown, it is indicative of resulfurized steel F Silicon may be specied by the purchaser as 0.

The need for 0. G These steels can be expected to contain 0. If the usual titanium additive is not permitted, the steels can be expected to contain up to 0. Workmanship, Finish, and Appearance 7. Within the limits of good manufacturing and inspection practices, the bars shall be free of injurious seams, laps, segregation, or other imperfections which due to their nature, degree, or extent, will interfere with the use of the material in machining or fabrication of suitable parts.

Certication and Test Reports 8. The report shall include the name of the manu- facturer, ASTM designation and year date and revision letter, if any, type and grade, heat number, and size. One or more of the following Supplementary Requirements shall apply when specied by the purchaser. This quality A 91

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