ASTM A447 PDFJune 19, 2020
ASTM AM Standard Specification for Steel Castings, Chromium-Nickel- Iron Alloy ( Class_电子/电路_工程科技_专业资料. Cast ASTM: A (CENT, INVEST, SAND). HH. HH TYP I. Cast UNS: J Cast Grade: HH TYP I. Cast ASTM: A, HH Type I (CENT, INVEST, SAND). This specification covers iron-base, heat-resisting alloy castings, intended for structural elements, containers, and supports in electric furnaces, petroleum still.
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astm a vs. astm a grade hh – Metal and Metallurgy engineering – Eng-Tips
Summary of Standard Sp ASTM B standard spe A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Within the text, the SI units are shown in brackets. Adtm values stated in each system are not exact equivalents; therefore, each system must ashm used independently of the other. Combining values from the two systems may result in nonconformance with the speci? General Conditions for Delivery 3.
Failure to comply with the general requirements of Speci? In case of con? Current edition approved Dec. Originally published as B — 44 T. Redesignated as A in Number of Tests 8. The tests shall be selected aastm the following list, with the restriction that not more than one of the tension tests at high temperature that is, 8.
This additional specimen shall conform to the requirements prescribed for the test in question. At least two of these shall conform to the prescribed requirement. Tensile Properties After Aging Tensile strength, min, ksi [MPa] Elongation in 2 in. The tension test specimens shall be machined from the heat-treated sample, and shall conform to the dimensions shown in Fig. Astk speed of head of the testing machine shall be so adjusted that the rate of separation of the gage marks on the test specimen shall not exceed 0.
When special alloying elements are speci? After quenching, all scale and super? NOTE 2—Where the test method used measures volume percent ferrite, conversion to magnetic ast may be accomplished using the following requirements: The specimen shall be mounted in the testing furnace and held within this range of temperature for 1 asstm, and the test load then applied.
Defective Test Specimens Repair by Welding A list of standardized supplementary requirements for use at the option of the purchaser is included in Speci? Those which are ordinarily considered suitable for use with the speci? Others enumerated in Speci? Examination of Weld Preparation S8.
The bibliography is by no means complete, but will serve as an introduction to the subject. Metals, Vol 30, No. Mining and Metallurgical Engrs. Technical PublicationVol 9, No.
Heat Resistant Stainless Steel
The American Society for Testing and Materials 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 w447 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?
Your comments are invited either for revision of this standard or for additional standards and a44 be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.