(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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You can rely on Niagara LaSalle for all of your steel bar needs. Niagara LaSalle is exceptionally responsive to the needs of our customers and puts a high priority on providing uniformity in the machinability of our products in order to improve productivity for you.
The steel shall be made by one or more of the following primary processes: Tension test asstm be made to conform to the requirements specified.
The yield strength shall be determined at 0. Nonmetallic Inclusion Requirements Microscopical S4. Link to Active This link will always route to the current Active version of the standard. Details of these requirements shall be agreed upon between the manufacturer and the purchaser.
Restricted Cast or Heat Analysis the surface of the material. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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. Ground and Polished with special close tolerances available on order.
Seams deeper than this are rejectable. This was followed by the highest temperature stress relieving treatment possible to obtain a combination of properties, including strength, wear resistance, minimum warpage and excellent machinability.
Parts you are now heat treating from Rc 23 to Rc The rating of the inclusion count should also be agreed upon and be based upon examination at a magni? Warpage tests are also regularly made as part of a standard quality assurance procedure.
A Class B Stressproof TG&P | Alro Steel
Routine warpage tests are also conducted throughout the life of the die. NOTE 2— When turned bars are speci? Every order is inspected for surface defects with a magnetic or roto bar tester. Combining values from the two systems may result in nonconformance with the speci?
Materials and Manufacture 6. If restraightened, then the same number of tests are again required. To further improve quality, Niagara LaSalle reduced the standard seam depth tolerance for StressProof from 0. For continuous type of treatment, a lot shall consist of 25 tons [25 Mg] or less of the same size of each heat, treated in the same cycle.
Niagara Lasalle Steel Products – Stressproof ®, ASTM A, Cold Rolled Steel Round Rod
Workmanship, Finish, and Appearance Combining values from the two systems may result in nonconformance with the specification. Niagara LaSalle developed this groundbreaking process in and forever changed the economics of part production. NOTE 1— A typical ordering description is as follows: A lot shall consist of bars of the same size from the same heat which have been stress relieved in the same stationary furnace charge.
Have questions about your specific products? This specification covers cold-drawn, stress-relieved carbon steel bars subject to mechanical property requirements. And, most importantly, help reduce your manufacturing costs. Restricted Incidental Elements S2. Class A are normal-draft cold-drawn and stress-relieved rounds, squares, hexagons, and satm.
The results then become an integral part of the quality assurance program. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other. Class B are heavy-draft cold-drawn and stress-relieved rounds and hexagons. Maximum seam depth of 0. This abstract is a brief summary of the referenced standard.