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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 Steel, find alternative materials, and connect with suppliers. 13 Sep ASTM A Standard Specification for Steel Bars, Alloy, Standard Grades.
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astm a322 Chemical Composition Base Material. The primary melting may incorporate separate degassing or refining and may be followed by secondary asttm using electro-slag remelting or vacuum arc remelting.
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. The tensile strength of the core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed.
This abstract is a brief summary of the referenced standard. The bars shall be free of pipe, cracks, and flakes. Bar applications include forging, heat treating, cold drawing, astm a322 and astm a322 structural components Note 1. Asgm hardened and tempered can be further surface hardened by flame or induction hardening and astm a322 nitriding. Historical Version astm a322 – view previous versions of standard.
However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions. Following forging operation the work piece should be cooled as slowly as possible. Parts can therefore be machined to near final size, leaving a grinding allowance only. Dark Blue Bar End. Welding of in whatever condition should always be carried out using astm a322 hydrogen electrodes – please consult your welding consumables supplier.
Download this datasheet as pdf. Referenced Documents purchase separately The documents listed below astm a322 referenced within the subject standard but are not provided as part of the standard.
This a232 have little effect on case hardness and will reduce the risk of grinding cracks. It is recommended that the work piece if possible is wrapped in an heat resistant blanket or astm a322 in sand etc. It astm a322 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.
Note 1 — Astm a322 guide for the selection of steel bars is contained in Practice A ASTM does not give any warranty z322 astm a322 implied or make any representation that the contents of this abstract are accurate, complete or up to date.
The steel shall be made by one or more of the following primary processes: Please consult your heat treater for best results. Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single x322 heat.
This astm a322 covers hot-wrought alloy steel bars. The steel shall be furnished as strand cast or ingot cast.
Link to Active This link will always route to the current W322 version of the standard. Astm a322 of in the hardened and tempered condition as normally suppliedis not recommended and should be avoided if at all possible, as the mechanical properties will be altered within the weld heat affected zone.
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. astm a322
Following quenching to hand warm, most components should be tempered between Astm a322 – C to remove quenching astm a322 in the case. Hot-wrought alloy steel bars adtm produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition.