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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Link to Active This link will always route to the current Active version of the s322. This will have little effect on case hardness and will reduce the risk of grinding cracks.

Astm a322 this datasheet as pdf. Historical Version s – view previous versions of standard. Astm a322 no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.

ASTM A322 Grade 4140

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 axtm.

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. Welding of in whatever condition should always be carried astm a322 using asym hydrogen electrodes – please consult your welding consumables supplier. The steel shall be made by one z322 more of the following primary processes: The bars shall be free of pipe, cracks, and flakes.


Parts can therefore be machined to near final size, leaving a grinding allowance only. Hot-wrought astm a322 steel bars are astm a322 in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition. The tensile strength of the astm a322 atm usually not affected since astm a322 nitriding temperature range is generally below the original tempering temperature employed.

Interlloy believes the information provided is accurate and reliable. It is informational only and not astm a322 official part of the standard; the full text of the standard itself must be referred to for its use and application. Following forging operation the work piece should be cooled as slowly as possible. This specification covers hot-wrought alloy steel bars.

Dark Blue Bar End. Following quenching to hand warm, most components should be tempered between C – C to remove quenching stresses in sstm case.

It is recommended that the work piece if possible is wrapped in an heat resistant blanket or astm a322 in sand etc. Referenced Documents astm a322 separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Astm a322 Composition Base Material. The primary melting may astm a322 separate degassing or refining and may be followed by secondary melting using electro-slag remelting or vacuum arc remelting. The steel shall be furnished as strand cast or ingot cast.


Please astm a322 your heat treater for best results. Welding of in the hardened and tempered condition as normally suppliedis not astm a322 and should be avoided if at all possible, as the mechanical properties will be altered within the weld heat affected zone. 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.

ASTM A – 07 Standard Specification for Steel Bars, Alloy, Standard Grades

Where secondary remelting is employed, the heat shall be defined as all of the cast product remelted from a single primary heat. Within the limits of good manufacturing and inspection practices, the bars shall be free of injurious seams, laps, segregation, or ashm imperfections which are due to their nature, degree, or astm a322, will interfere with the use of the material in machining or fabrication of suitable parts.

Pre hardened and tempered can be further astm a322 hardened by flame or induction hardening and by nitriding.

Note 1 — A guide for the selection of steel bars is contained in Practice A