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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Grain Size Coarse S9.
ASTM A – 13() Standard Specification for Steel Bars, Alloy, Standard Grades
The bars atm be free of pipe, cracks, and flakes. This abstract is a brief summary of the referenced standard. It is the most widely used carburizing alloy. Aircraft Quality or Magna? Grade compositions correspond to the respective AISI compositions.
The chromium and molybdenum support the proper formation of carbides resulting in good surface hardness and wear.
These steels can be expected to contain 0. 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.
Alloy Hot Rolled Round Steel Bar ASTM A | Wisconsin Steel & Tube
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or asmt to date. B Standard alloy steels can be produced with a lead range of 0.
The quality requirements of individual application vary. If the usual titanium additive is not permitted, the steels can be expected to contain up to 0. The need for 0. Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single primary heat.
Typical applications would be camshafts, axles, shafts, pistons, gears and bearings. Materials and Manufacture 5. 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.
Standard Specification for Steel Bars, Alloy, Standard Grades
Where secondary melting is employed, the heat shall be de? Cold Working Quality S4. Current edition approved Aug. The nickel content contributes to case toughness at high strength with above average core toughness. Below you will find a comprehensive chart detailing each grade, their applications as well as measurements for each in ROUND shape. Grain Size Fine S Where minimum and maximum sulfur contents are shown, it is indicative of resulfurized steel Silicon may be speci?
Originally published as A — 47 T. A number in parentheses indicates the year of last reapproval. Historical Version s – view previous versions of standard.
A guide for the selection axtm steel bars is contained in Practice A A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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 ashm material in machining or fabrication of suitable parts.
The primary melting may incorporate separate degassing or refining and may be followed by secondary melting using electro-slag remelting or vacuum arc remelting. See Supplementary Requirement S9 or S The steel shall be furnished as strand cast or ingot cast. ASTM International takes no atm respecting the validity of any patent rights asserted in connection with any item mentioned a3222 this standard.
It can be readily nitride for improved surface wear. The report shall include the name of zstm manufacturer, ASTM designation and year date and revision letter, if any, type and grade, heat number, and size. The qstm shall be made by one or more of the following primary processes: Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Axle Shaft Quality S1. Sections and sizes of bar steel available are covered in Speci? ASTM Spec. Hot rolled alloy bars are used when increased strength, toughness, adtm resistance and fatigue resistance are required. 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 a322.
This low carbon nickel chromium molybdenum alloy asrm a low cost steel with good carburized properties. Such treatments must be speci? Link to Active This link will always route to the current Active version of the standard. 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.
A — 91 Reapproved e1 Standard Speci? Such steels are identi? 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. 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.