Astm a105 standard pdf
Comply with this specification. Heat treatment is not required except for flanges above Class , flanges of special design where the design pressure or design temperature are not known and for items over 4" NPS and above Class When heat treatment is required, annealing, normalizing, Normalize and temper, normalize and quench and tempering shall be the applied methods.
These components can be welded. ASTM A carbon steel can be forged at temperatures in the range of to F followed by quenching and tempering or normalizing. Forged parts can be cooled to below degrees Fahrenheit and then heated to between degrees Fahrenheit and 1, degrees Fahrenheit.
Then carry out slow furnace cooling. Standard Scope ASTM A covers forged carbon steel flange and piping components for ambient and higher-temperature service in pressure systems. A Specification for steel bars, carbon, hot-rolled or cold-finished,special quality, for pressure piping components. Heat treatment Heat treatment is not required except for flanges above Class , flanges of special design where the design pressure or design temperature are not known and for items over 4" NPS and above Class Welding These components can be welded.
Forging ASTM A carbon steel can be forged at temperatures in the range of to F followed by quenching and tempering or normalizing. Annealing Forged parts can be cooled to below degrees Fahrenheit and then heated to between degrees Fahrenheit and 1, degrees Fahrenheit.
Contact Us Now for an Immediate Offer. Contact Now! Slip On Flange. D For round specimens only. Where the wall thickness lies between two values shown above, the minimum elongation value is determined by the following equation: the dimension of maximum working, and produced in equipment unsuitable for the production of a separately forged test bar such as an automatic or semi-automatic press, may be accepted on the basis of hardness only.
One percent of the forgings per lot, where a lot is the product from a heat, or, if heat treated, the product of a heat per furnace charge, or ten forgings, whichever is the lesser number, shall be selected at random, prepared, and tested using the standard Brinell test. The locations of the indentations shall be at the option of the manufacturer but shall be selected to be representative of the forging as a whole.
One indentation per forging shall be required but additional indentations may be made to establish the representative hardness. The hardness of all forgings so tested shall be to HBW inclusive. When more than one forging is produced from each heat, a minimum of two forgings shall be tested with one reading from each forging. When only one forging is produced, it shall be tested in two locations. When only one forging is produced, it shall be hardness tested in two locations to ensure it is within the hardness limits given in Table 2.
The purchaser may verify that the requirement has been met by testing at any location on the forging, provided such testing does not render the forging useless. Hydrostatic Tests E 5 48T Retreatment 8.
The test specimen material shall be included with a furnace charge. The largest feasible round specimen shall be used except when hollow cylindrically shaped parts are machined from seamless tubulars. When hollow cylindrically shaped parts are machined from seamless tubular materials, strip tests may be used. The tension test specimen shall be obtained from a production forging, or from an integral prolongation representative of the hub location of a flange, or the heaviest cross section of a fitting, valve, or other part within the scope of this specification.
Surface Finish, Appearance, and Corrosion Protection Repair by Welding Rejection and Rehearing Certification Product Marking Other parts ordered with no marking are by agreement between the purchaser and manufacturer.
The purchaser may specify in the order a specific bar coding system to be used. The bar coding system, if applied at the discretion of the supplier, should be consistent with one of the published industry standards for bar coding.
If used on small parts, the bar code may be applied to the box or a substantially applied tag. Keywords Hardness S1. All forgings not within the specified hardness range shall be rejected. Heat Treatment S2. If the forging was not previously heat treated, the original tempering temperature was exceeded, or the forging was fully heat treated in the post weld cycle, then the forging shall be tested in accordance with Section 8 on completion of the cycle.
Marking Small Forgings S3. Carbon Equivalent S4. Approved October 1, 1 Revised 8. 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 five 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 [email protected] e-mail ; or through the ASTM website www. Astm March 0. Astm May Astm December