3 Annual Book of ASTM Standards, Vol TABLE 1 Tensile Requirements Class A Tensile strength, min, ksi (MPa) 21 () Class B ASTM Apdf – Free download as PDF File .pdf), Text File .txt) or read online for free. Class A Class B Class C Tensile strength, min, ksi (MPa) 21 () NO. PART. MATERIAL. ASTM. 1. BODY. CAST IRON. A CLASS B. 2. SEAT RING. BRONZE. B 3. WEDGE FACE RING. BRONZE.

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ASTM A Class B – Landee

The actual cross-sectional area shall be used in calculating the tensile strength. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Cast Test Bars Rejection shall clasa reported to the manufacturer or supplier promptly and in writing. However, the document shall clearly identify the organization submitting the certication and the authorized agent of the manufacturer who certied the test results.

Last previous edition A — The certication shall clas include the results of all tests performed including chemical analysis. The values given in parentheses are for information only. 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.


Notwithstanding the absence of a signature, the organization submitting the certication is responsible for its content. Complete records of all tests and inspections shall be maintained by the manufacturer and shall be available for review by the purchaser.

Originally q126 as A — 29T. Copyright ASTM Standard Specication for Gray Iron Castings for Valves, Flanges, and Pipe Fittings1 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.

Workmanship, Finish, and Appearance 6. Alternate Test Bars Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. The load shall be applied at a rate that will produce 0. A number in cpass indicates the year of last reapproval.

Tension Test Apparatus When the alternate bars are used, they shall be machined and tested in accordance with Specication A 48 and shall meet the requirements of Specication A 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.


In case of dissatisfaction with the test results, the manufacturer or supplier may make claim for a rehearing. This standard has been approved for use by agencies of the Department of Defense. Current edition approved Dec.

ASTM A Standard specification for gray iron castings for Valves, Flanges and Pipe fittings

Rejection and Rehearing A superscript epsilon e indicates an editorial change since the last revision or reapproval. In the particular method shown12 refers to December 8, B claes is the cupola number, and the numeral 1 which follows shows the hour cast 1 p.

Should alternative grip-ends be disputed, the threaded grip-ends shall be used.