The ASTM A specification is the Standard Specification for Structural Steel plates primarily used in ship construction. Steel grades covered in this. ASTM A - Designation: A /A M – 08 Standard Speci?cation for Structural Steel for Ships. Referenced Documents ASTM Standards: A 6/A6M Specification for General Requirements for Rolled Stnictural Steel Bars, Plates, Shapes.
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ASTM-Apdf - Free download as PDF File .pdf), Text File .txt) or read online for free. astm a - Download as PDF File .pdf), Text File .txt) or read online. A / AM Standard Specification for Structural Steel for Ships shipbuilding materials~ Standard + Redline PDF Bundle ASTM License Agreement.
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. Other grades may be furnished by agreement between the purchaser and the manufacturer. See Appendix X3 of Speci? Within the text, the SI units are shown in brackets.
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. Other grades may be furnished by agreement between the purchaser and the manufacturer. See Appendix X3 of Speci?
Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this speci? Referenced Documents 2. Current edition approved March 1, Published March Originally approved in Terminology 3. A high proportion of the rolling reduction is to be carried out close to or below the Ar3 transformation temperature and may involve rolling towards the lower end of the temperature range of the intercritical dual-phase region, thus permitting little if any recrystallization of the austenite.
The process may involve accelerated cooling on completion of rolling. Ordering Information 4.
Materials and Manufacture 5. For ordinary-strength grades, aluminum shall be used to obtain grain re?
Plates over 13? See Table 1. See Table 2. Heat treatment and rolling requirements for shapes and bars are given in Table 1 and Table 2. Chemical Requirements 6.
Metallurgical Structure 7. Mechanical Requirements 8. However, for? Sampling for bend testing shall be as speci?
If, however, product from one heat differs 3? The frequency of Charpy V-notch impact tests shall be as given in Table 1 and Table 2. The test results shall conform to the requirements given in Table 7. If heat testing is required, a set of three specimens shall be tested for each test lot size indicated in Table 1 and Table 2, of the same type of product produced on the same mill from each heat of steel. The set of impact specimens shall be taken from different as-rolled or heat-treated pieces of the heaviest gage produced.
An as-rolled piece refers to the product rolled from a slab, billet, bloom, or directly from an ingot. Where the maximum thickness or diameter of various sections differs by 3?
Specimens for bars shall be in accordance with Speci? Grade D steel over 1. C A maximum carbon content of 0. D Where the content of acid soluble aluminum is not less than 0. E The contents of nickel, chromium, molybdenum, and copper are to be determined and reported.
D For all ordinary strength grades, the upper limit of the manganese may be exceeded up to 1. The lower limit of the manganese for Grade B may be reduced to 0.
E For Grade D steel equal to or less than 1. F Lower limit of silicon does not apply to semi-killed Grade D steel.
G See 5. H These elements need not be reported on the mill sheet unless intentionally added. I See Section 8. For Grade A over 1 in. D For nominal thicknesses or diameters over 3. E Elongation not required to be determined for oor plate. F For plates wider than 24 in. C heat-treated pieces of the heaviest gage produced. An as-rolled piece refers to the product rolled from a slab, billet, bloom, or directly from an ingot.
Where the maximum thick3 ness or diameter of various sections differs by 38 in. See 9.
The average value shall meet the specied minimum with not more than one value below the specied minimum but in no case below two thirds of the specied minimum. If these requirements are not met, a retest of three additional specimens may be made as follows: 8. At the option of the producer retests may be made on each piece of the rejected material, in which case each piece shall stand on the results of its own test. It shall also be the option of the producer to heat treat the product prior to retesting if desired.
The test results shall conform to the requirements of Table 5. Bend test requirements for rivets are given in Table 6.