ASTM A322 PDF

Designation: A – 91 (Reapproved ) e1 Standard Specification for Steel Bars, Alloy, Standard Grades 1 This s. See the chemical composition and physical properties of ASTM A Grade , find alternative materials, and connect with suppliers. Alloy Hot Rolled Round Steel Bar ASTM A Hot rolled alloy bars are used when increased strength, toughness, wear resistance and fatigue resistance are .

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Sections and sizes of bar steel available are covered in Speci? Such steels are identi? Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. The producer should be consulted in establishing the proper practice. Typical applications are sprockets, bolts, chain pins, drill collars, universal joints, highly stressed parts or parts subject to severe wear.

These elements are considered as incidental and may be present to the following maximum amounts: Hot rolled alloy bars are used when increased strength, toughness, wear resistance and fatigue resistance are required.

Where minimum and maximum sulfur contents are shown, it is indicative of resulfurized steel Silicon may be speci? Last previous edition A — 90b.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Grain Size Fine S This specification covers hot-wrought alloy steel bars.

ASTM A322 Grade 4140

Grade compositions correspond to the respective AISI compositions. The primary melting may incorporate separate degassing or refining and may be followed by secondary melting using electro-slag remelting or vacuum arc remelting.

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This medium carbon, chromium-molybdenum, through-hardening alloy steel has a good hardenability with high strength and toughness as well as good fatigue and impact resistance after heat treating. ASTM does asgm give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

ASTM A – 13() Standard Specification for Steel Bars, Alloy, Standard Grades

Workmanship, Finish, and Appearance 7. ASTM Spec.

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

A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the adtm revision or reapproval. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Link to Active This link will always route to the current Active version of the standard. The bars shall be free of pipe, cracks, and flakes. Cold Working Quality S4.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. B Standard alloy steels can be produced with a lead range of 0. Current edition approved Aug.

Standard Specification for Steel Bars, Alloy, Standard Grades

Bar applications include forging, heat treating, cold drawing, machining and many structural components Note 1. Historical Version s – view previous versions of standard.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Where secondary melting is employed, the heat shall a322 de?

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It can be readily nitride for improved surface wear. For best machining, it is often used in the annealed condition; however, when the amount of machining necessary is minimal or when the risk of distortion in heat treating a finished part is paramount, it is typically used in the quenched and tempered condition.

The primary melting may incorporate separate degassing or re? Grain Size Coarse S9. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Axle Shaft Quality S1. This abstract is a brief summary of the referenced standard.

It is the most widely used carburizing alloy. Materials and Manufacture 5. Bar applications include forging, heat treating, cold drawing, machining and many structural components Note 1. 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.

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 asstm with the s322 of the material in machining or fabrication of suitable parts. See Supplementary Requirement S9 or S This standard is subject to revision at any time by the responsible technical committee and must be astn every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.