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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Current edition approved Aug.

Standard Specification for Steel Bars, Alloy, Standard Grades

See Supplementary Requirement S9 or S 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. If the usual titanium additive is not permitted, the steels can be expected to contain up to 0. Hot-wrought alloy steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition.

Hot rolled alloy bars are used when increased strength, toughness, wear resistance and fatigue resistance are required. 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. 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.

Grade compositions correspond to the respective AISI compositions. Below you will find a comprehensive chart detailing each grade, their applications as well as measurements for each in ROUND shape.

ASTM A Standard Specification for Steel Bars, Alloy, Standard

Link to Active This link will always route to the current Active version of the standard. Typical applications would be camshafts, axles, shafts, pistons, gears and bearings. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

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The quality requirements of individual application vary. This standard has been approved for use by agencies of the Department of Defense. Cold Shearing Quality S3. B Standard alloy steels can be produced with a lead range of 0. ASTM Spec. 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.

Cold Working Quality S4. wstm

A guide for the selection of steel bars is contained in Practice A Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Typical applications for hot rolled bar include gears, pinions, shafts, and other applications where it is helpful to have a steel that can be readily machined and carburized to controlled case depths. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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.

The steel shall be made by one or more of the following primary processes: These steels can be expected to contain 0. A number in parentheses indicates the year of last reapproval. The chromium and molybdenum support the proper formation of carbides resulting in good surface hardness and wear. Materials and Manufacture 5.

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

Such steels are identi? Grain Size Coarse S9.

These elements are considered as incidental and may be present to the following maximum amounts: Such treatments must be speci? Aircraft Quality or Magna? 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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Grain Size Fine S The primary melting may incorporate separate degassing or re?

ASTM A322 1991 Standard Specification for Steel Bars, Alloy, Standard Grades

For best machining, it is often used in the annealed condition; asgm, 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.

A — 91 Reapproved e1 Standard Speci? This low carbon nickel chromium molybdenum alloy is a low cost steel with good carburized properties.

Axle Shaft Quality S1. Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single primary heat. If you feel that your comments have not received a fair a32 you should make your views known to the ASTM Committee on Standards, at the address shown below. Typical applications are sprockets, bolts, chain pins, drill collars, universal joints, highly stressed parts awtm parts subject to severe wear.

Sections and sizes of bar steel available are covered in Speci? Bar applications include forging, heat treating, cold drawing, machining and many structural components Note 1.

Bar applications include forging, heat treating, cold drawing, machining and many structural components Note 1.

This abstract is a brief summary of the referenced standard. The producer should be consulted in establishing the proper practice. This specification covers hot-wrought alloy steel bars. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.