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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The report shall include the name of the manufacturer, ASTM designation and year date and revision letter, if any, type and grade, heat number, and size.
Typical applications are sprockets, bolts, chain pins, drill collars, universal joints, highly stressed parts or parts subject to severe wear.
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, s322 extent, will interfere with the use of the material in machining or fabrication of suitable parts. Where secondary melting is employed, the heat shall be de?
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. The producer should be consulted in establishing the proper practice. It can be readily nitride for improved surface wear. Workmanship, Finish, and Appearance 7. Materials and Manufacture 5. This standard is subject to revision at asstm time by the responsible technical committee and must be reviewed every?
The chromium and molybdenum support the proper formation of carbides resulting in good asrm hardness and wear. The steel shall be furnished as strand cast or ingot cast. Hot rolled alloy bars are used when increased strength, toughness, wear resistance and fatigue resistance are required. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Hot-wrought alloy steel bars are produced in atsm lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition.
ASTM A – 13() Standard Specification for Steel Bars, Alloy, Standard Grades
The nickel content contributes to case toughness at high strength with above average core toughness. The asm melting may incorporate separate degassing or re? Below you will find a comprehensive chart detailing each grade, their applications as well as measurements for each in ROUND shape. 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.
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.
Grain Size Ashm S9. Link to Active This link will always route to the current Ashm version of the standard. This low carbon nickel chromium molybdenum alloy is a low cost steel with good carburized properties. ASTM Spec. This standard has been approved for use a3222 agencies of the Department of Defense. Historical Version s – view previous versions of standard.
ASTM A – 07 Standard Specification for Steel Bars, Alloy, Standard Grades
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.
Grain Size Fine S Originally published as A — 47 T. A guide for the selection of steel bars is contained in Practice A 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.
A — 91 Reapproved e1 Standard Speci? If the usual titanium additive is not permitted, the steels can be expected to contain a32 to 0.
ASTM A322 1991 Standard Specification for Steel Bars, Alloy, Standard Grades
A superscript epsilon e indicates an editorial change since the last revision or reapproval. These elements are considered as incidental and may be present to the following maximum amounts: Such aastm must be speci? B Standard alloy steels can be produced with a lead range of 0.
A number in parentheses indicates the year of last reapproval. Grade compositions correspond to the respective AISI compositions.
Aircraft Quality or Magna? Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single primary heat. The quality requirements of individual application vary. The need for 0. The steel shall be made by one or more of the following primary processes: Axle Shaft Quality S1. Where minimum and maximum sulfur contents are shown, it is indicative of resulfurized steel Silicon may be speci?
Your comments will receive careful consideration at a meeting of the ashm technical committee, which you may attend. Last previous edition A — 90b. Typical applications would be camshafts, axles, shafts, pistons, gears and bearings. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
This aztm 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.
This abstract is a brief summary of the referenced standard.