(Identical to ASTM Specification A /A M (R) except for deletion of , revision of Table 1 footnote A, and editorial corrections to Table 2.) 1. A Class B Stressproof TG&P Cold Finished Bar Round Turned Ground Polished, A Round Bar, A Rod, A TG&P Rod, A TG&P Round Rod . See the chemical composition and physical properties of ASTM A Grade cold-drawn, stress relieved, annealed bar, find alternative materials, and.

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Workmanship, Finish, and Appearance The result is a steel bar product that meets stringent awtm and provides a wide variety of benefits, including:. Details of these requirements shall be agreed upon between the manufacturer and the purchaser.

Maximum seam depth of 0. Restricted Cast or Heat Analysis the surface of the material. If restraightened, then the same aztm of tests are again required.

Seams deeper than that stated above are rejected. It covers multiple grades and numerous conditions of stress-relieved cold drawn bars to meet minimum mechanical property requirements. This specification covers cold-drawn, stress-relieved carbon steel bars subject to mechanical property requirements.

A Class B Stressproof TG&P | Alro Steel

To further improve quality, Niagara LaSalle reduced the standard seam depth tolerance for StressProof from 0. Historical Version s – view previous versions of standard. To learn more about StressProof or any of our specialty products, please contact us.

The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other. Link to Active This link will always route to the current Active version of the standard.


Standard “as drawn” finish is smooth, Accurate and dark in color. One warpage test is taken of first bar produced by a new or reground specialty designed drawing die. Referenced Documents stresses, and then cooling slowly enough to minimize the development of new residual stresses. The area of the sample to be examined should be agreed upon between the purchaser and the manufacturer, and the test specimen should be hardened by heating and quenched before being polished to avoid pits.

One class, B, is cold drawn with higher than normal heavy drafts to provide higher strength levels, and four grades provide improved machinability.

ASTM A311 Grade 1117 cold-drawn, stress relieved, annealed bar

The yield strength shall be determined at 0. Warpage tests are also regularly made as part of a standard quality assurance procedure. Ground and Polished with special close tolerances available on order. The importance of high temperature stress relieving to obtain maximum ductility, zstm warpage and excellent machinability is a major part of the original patent. You can rely on Niagara LaSalle for all of your steel bar needs.

The cast or heat analysis shall conform to the chemical composition requirements specified.

Within the text, the SI units are shown in brackets. The rating of the inclusion count should also be agreed upon and be based upon examination at a magni?

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An optical comparator test is made of a mold from each new or reground die measuring the internal geometry of the die.

Restricted Incidental Elements S2. Parts you are now heat treating from Rc 23 to X311 The results then become an integral part of the quality assurance program.

Materials and Manufacture 6. Therefore, a warpage test is always performed on the first bar drawn through either a new or reground die. 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. ASTM does not give any wstm express or implied or make any representation that the contents of this abstract are accurate, complete or astj to date. Tension test shall be made to conform to the requirements specified.

A lot shall consist of bars of the same size from aztm same heat which have been stress relieved in the same stationary furnace charge. NOTE 2— When turned bars are speci? The stress relieving temperature selection is based on 60 years of experience and thorough documentation.

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