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 – Valve, Material Specifications
The load shall be applied at a rate that will produce 0. Current edition approved Dec. In the particular method shown12 refers to December 8, B 1 is the cupola number, and the numeral 1 which follows shows the hour cast 1 p.
The values given in parentheses are for information only. Last previous edition A a1266 A superscript epsilon e indicates an editorial change since the last revision or reapproval. In case of dissatisfaction with the test results, the manufacturer or supplier may make claim for a rehearing.
The certication atsm also include the results of all tests performed including chemical analysis. The actual cross-sectional area shall be used in calculating the tensile strength.
Rejection and Rehearing A number in parentheses indicates the year of last reapproval. Rejection shall be reported to the manufacturer or supplier promptly and in writing. Should alternative grip-ends be disputed, the threaded grip-ends shall be used. 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by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.
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.
This standard has been approved for use by agencies of the Department of Defense. Alternate Test Bars However, the document shall clearly identify the organization submitting the certication and the authorized agent of the manufacturer who certied the test asttm. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.
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.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Tension Test Apparatus Cast Test Bars Workmanship, Finish, and Appearance 6.
Notwithstanding the absence of a signature, the organization submitting the certication is responsible for its content.
ASTM A Standard specification for gray iron castings for Valves, Flanges and Pipe fittings
Originally published as A — 29T. Complete records of all tests and inspections shall be maintained by the manufacturer and shall be available for review by the purchaser. When the alternate bars are used, they shall be machined awtm tested in accordance with Specication A 48 and shall meet the requirements of Specication A