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Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys1 This standard is issued under the fixed designation A ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Referenced Documents for the heat analysis limits in mass percent: 2. Terminology exceed: 0. Use the preferred term heat analysis. Current edition approved June 15, Published July Originally requirements of the specification including year of issue approved in Last previous edition approved in as A Use the preferred term nator used to identify a specific heat of steel.
Austenitic grain refining specifications are as given in the definition for carbon steel, except that elements include, but are not limited to, aluminum, niobium colum- the 0. See Test Methods E In product specifications, the term heat generally is for alloy steel. The condition of being stabilized with respect of the primary heats contained in the multiple heat. The heat to sensitization is frequently demonstrated by passing one or more analysis of a multiple heat identified by a single heat number is the standard corrosion tests for sensitization.
Two or more molten primary heats sequentially stainless steel, na steel that conforms to a specification that strand cast poured into an oscillating mold constitute a series of requires, by mass percent, a minimum chromium content of individual heats, not a multiple heat. For conformance purposes, this calculated value plate-as-rolled, nthe quantity of plate product rolled at one for iron is compared on an individual basis to the mean values time, either from an individual slab or directly from an ingot.
In an appropriately annealed condi- treatments. Where applicable, it is preferred that the following more specific terms be used: box annealing, bright annealing, flame and nitrogen by the surface and, by diffusion, to create a annealing, full annealing, graphitization annealing, intermediate concentration gradient.
The term is brought into contact with a carbonaceous environment of annealing, without qualification, implies full annealing. Any pro- sufficient carbon potential to cause absorption of carbon at cess of annealing will usually reduce stresses; however, if the the surface and, by diffusion, to create a concentration treatment is applied for the sole purpose of stress reduction, it should be gradient.
It is preferred that austenitizing, nforming austenite by heating a steel object the applicable specific process name be used. It is used also to denote the heating of springs after critical cooling rate, nthe slowest rate of continuous cool- fabrication in order to improve their properties. Ac1 and then cooling it, in order to soften it for further cold soaking, nprolonged holding at a selected temperature.
Applicable to hypereutectoid steels containing a carbide quenching. Where applicable, it is preferred that selective quenching, nquenching only certain portions of a the following more specific terms be used: induction hardening, flame hardening, and shell hardening. Ac1the temperature at which austenite begins to form tempering, nreheating a quench hardened or normalized during heating.
The limiting temperatures of the ranges are depen- Ar4the temperature at which delta ferrite transforms to dent upon the steel composition and the rate of change of temperature, austenite during cooling. Mfthe temperature at which transformation of austenite to transformation temperature, nthe temperature at which a martensite is substantially completed during cooling.
Committee A01 has identified the location of selected changes to this terminology since the last issue, A 06, that may impact the use of this terminology. Committee A01 has identified the location of selected changes to this terminology since the last issue, A 04a, that may impact the use of this terminology.
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Search inside document. Designation: A 06a Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys1 This standard is issued under the fixed designation A ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Approved March 15, 1 Added a definition for document in 3. Riggs Marasigan. Shanmuga Baskar.
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Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
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ASTM A 941.pdf
ASTM A941 - 18