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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Current edition approved Dec. Your comments are invited either for revision of this standard or for additional standards and should be addressed astn ASTM Headquarters.

ASTM A126 Grade B

The load shall be applied at a rate that will produce 0. This standard has been approved for use by agencies of the Department of Defense.

Complete records of all tests and inspections shall be maintained by the manufacturer and shall be available for review by the purchaser. A superscript epsilon e indicates an editorial change since the last revision or reapproval.


However, the document shall clearly identify the organization submitting the certication and the authorized agent of the manufacturer who certied the test results.

ASTM – Valve, Material Specifications

The actual cross-sectional area shall be used in calculating the tensile strength. In the particular method shown12 refers to Clqss 8, B 1 is the cupola number, and the numeral 1 which follows shows cclass hour cast 1 p. 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 The certication shall also include the ckass of all tests performed including chemical analysis.

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. Rejection and Rehearing 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by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.


Tension Test N Rejection shall be reported to the manufacturer or supplier promptly and in writing. In case of dissatisfaction with the test results, the manufacturer or supplier may make claim for a rehearing. The values given in parentheses are for information only. Cast Test Bars Should alternative grip-ends be disputed, the threaded grip-ends shall be used. Users of this standard are expressly advised that determination of the validity of asttm such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Workmanship, Finish, and Appearance 6. Notwithstanding the absence of a signature, the organization submitting the certication is responsible for its content. A number in parentheses indicates the year of last reapproval.

Last previous edition A — Originally published as A — 29T. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Alternate Test Bars

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