ASTM A576 90B PDF

Special quality bar applications include forging, heat treating, cold drawing, machining, and many structural uses. A guide for the selection of steel bars is contained in Practice A Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition. Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email.

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Steel Bars, Carbon, Hot-Wrought, Special Quality1 This standard is issued under the xed 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. This standard has been approved for use by agencies of the Department of Defense. Scope 1. Special quality bar applications include forging, heat treating, cold drawing, machining, and many structural uses.

A guide for the selection of steel bars is contained in Practice A Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition. Referenced Documents 2. Ordering Information 3. NOTE 1A typical ordering description is as follows: 10 lb, carbon steel bars, hot rolled 1 in.

Current edition approved March 1, Published March Originally approved in Last previous edition approved in as A 90b Materials and Manufacture 4. The primary melting may incorporate separate degassing or rening and may be followed by secondary melting using electroslag remelting or vacuum arc remelting. Where secondary melting is employed, the heat shall be dened as all of the ingots remelted from a single primary heat. A 90b elements or combination of elements or certain quantities of elements such as manganese, sulfur, and lead tend to produce grain renement.

Nonresulfurized Carbon Steels Low Manganese 1. Maximum unless otherwise indicated. When silicon is required, the following ranges and limits are commonly specied: 0. Copper can be specied when required as 0. When lead is required as an added element to a standard steel, a range of 0. Such a steel is identied by inserting the letter L between the second and third numerals of the grade designation, for example, 10 L A cast or heat analysis is not determinable when lead is added to the ladle stream.

When boron treatment is specied for killed steels, the steels can be expected to contain 0. The elements bismuth, calcium, selenium, or tellurium may be added as agreed between purchaser and supplier.

It is not common practice to produce these steels to specied limits for silicon because of its adverse effect on machinability.

Workmanship, Finish, and Appearance 6. Certication and Test Reports 7. General Requirements 8. Keywords 9. Chemical Composition 5. When the amount of an element present is less than 0. The report shall include the name of the manufacturer, ASTM designation number and year date and revision letter, if any, type and grade, heat number, and size. A The carbon ranges shown in the column headed Range apply when the specied maximum limit for manganese does not exceed 1. When the maximum manganese limit exceeds 1.

B It is not common practice to produce a rephosphorized and resulfurized carbon steel to specied limits for silicon because of its adverse effect on machinability. C A heat analysis for lead is not determinable, since lead is added to the ladle stream while each ingot is poured.

D It is not common practice to produce these steels to specied limits for silicon because of its adverse effect on machinability. E Element specication range as agreed to between purchaser and supplier. Cold-Working Quality S1. The quality requirements of individual application vary. Axle-Shaft Quality S2. Scrapless Nut Quality S3. A 90b namely piercing, upsetting, and forming, with consequent expansion in diameter.

Special Surface Quality S4. Annealing S5. Spheroidize Annealing S6. Special Internal Soundness Requirement S7. The test shall consist of deep etching a cross section in a hot-acid solution and with a visual examination to evaluate soundness. An alternative method consisting of fracturing a billet section and examining the fracture surface to evaluate soundness may be used with purchaser approval.

The acceptance limits shall be specied by the purchaser. For this reason, those steels are not generally produced to inclusion rating and S9 may not be specied. Grain Size Fine S The aluminum content shall be reported. The grain size test specied in S The test result shall be reported.

Restricted Incidental Elements S Stress Relieving S Special Straightness S Pickling S Blast Cleaning S Coating S The purchaser shall also specify the method of cleaning S15 or S16 ; otherwise the bars shall be descaled by pickling or blasting at the manufacturers option. Restricted Heat Chemical Ranges S Special Hardenability Requirement S9. Care should be taken so that the desired mechanical property values are compatible with the chemical composition, size, and cross section of the steel.

Grain Size Coarse S ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm. Learn more about Scribd Membership Home.

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Is this content inappropriate? Report this Document. Flag for Inappropriate Content. Download Now. Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. Designation: A 90b Reapproved Standard Specication for Steel Bars, Carbon, Hot-Wrought, Special Quality1 This standard is issued under the xed 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.

F G H When boron treatment is specied for killed steels, the steels can be expected to contain 0. Srinivasan Krishnamoorthy. Kang Mas Wiralodra. Chistian Acosta. Joun Smith. Erich Schlender.

DE MACONDO A MCONDO PDF

ASTM A576-90b(R2006)

Steel Bars, Carbon, Hot-Wrought, Special Quality1 This standard is issued under the xed 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. This standard has been approved for use by agencies of the Department of Defense. Scope 1.

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Special quality bar applications include forging, heat treating, cold drawing, machining, and many structural uses. A guide for the selection of steel bars is contained in Practice A Hot-wrought special quality carbon steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils, produced to a chemical composition. Your Alert Profile lists the documents that will be monitored. If the document is revised or amended, you will be notified by email.

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