ASTM A – / ASTM A – for Austenitic Cast Iron provided by Dandong Foundry in China. This is an America standard for the physical properties. Ni-Resist Iron has an austenitic matrix with about 10% alloy carbides. It is suitable for corrosive environments in sour well oils, salts, salt water acids. See the chemical composition and physical properties of ASTM A Grade 1, find alternative materials, and connect with suppliers.
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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Materials and Manufacture 4. Tension tests shall be performed wherein specimens shall conform to required tensile strength and Brinell hardness. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Link to Active This link will always route to the current Active version of the 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.
Types 1b, 2b, 3, and 5 may be attracted to a magnet. In case no option is expressed, the manufacturer shall make the choice. 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.
Tension Test Specimens 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.
In these cases, either of the test specimens shown in Fig. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Number of Test Otherwise, the austenite that is supersaturated with respect to carbon may reject carbon during service and produce dimensional changes. The test bars shall be cast in open molds made of suitable core sand with a minimum of 11? Packing and marking shall also be adequate to ensure acceptance and safe delivery by the carrier for the mode of transportation employed.
If any tension test specimen shows obvious defects, another may be cut from the same test bar or from another test bar representing the same metal.
ASTM A – / ASTM A – for Austenitic Cast Iron
The size of bar cast to represent the casting shall be at the option of the purchaser. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Where some machining is required, the 3. NOTE 1—Alnico magnets should not be used. Austenitic gray iron is characterized by uniformly distributed graphite flakes, some carbides, and the presence of sufficient alloy content to produce an austenitic structure. This nonmagnetic test is a convenient qualitative test only for A4336 1, 2, and 4 and shall not be used as a basis for acceptance.
The types of castings covered here are: The materials shall be manufactured by melting in any furnace that produces xstm which includes cupolas, air furnaces, electric furnaces, crucible furnaces, and so forth. Heat and product analyses shall be performed wherein specimens shall conform to required chemical composition of carbon, silicon, manganese, nickel, copper, chromium, sulfur, and molybdenum. Except as otherwise speci?
Preparation for Delivery Test Methods E 30 should only be used for analyzing those elements for which speci? The six types shall conform to the requirements given in Table 2. This abstract is a brief summary of the referenced standard.
Magnetic Property Requirements 7. Current edition approved Jan.
ASTM A436 – 1997 / ASTM A439 – 1999 for Austenitic Cast Iron
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Last previous edition A — Drillings are not reliable because of the probable loss of graphite. Ast specification covers austenitic gray iron castings that are used primarily for their resistance to heat, corrosion, and wear. These include cupolas, air furnaces, electric furnaces, crucible furnaces, and so forth.
The location and orientation of such tension test specimens cut from castings shall be speci? The reduced section shall have a gradual taper from the ends toward the center, with the ends 0.
Surfaces of the castings shall be free of burnt-on sand and shall be reasonably smooth. The castings shall be free of injurious defects. This standard is subject to astn at any time by the asstm technical committee and must be reviewed every? Responsibility for Inspection If castings are to be heat treated, test bars shall be included in the same furnace load. A number in parentheses indicates the year of last reapproval. Originally published as Aetm —59 T. Workmanship, Finish, and Appearance 9.
Historical Version s – view previous versions of standard. Austenitic gray iron is characterized by uniformly distributed graphite? Waiving of Inspection by Agreement