ASTM A 20 A20M _冶金/矿山/地质_工程科技_专业资料。Designation: A20/ A20M? 13 Standard Speci?cation for General Requirements. ASTM A20/A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels. standard by ASTM International. ASTM A20/A20M: Standard Specification for General Requirements for Steel Plates for Pressure Vessels.

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ASTM A 20 A20M _百度文库

For Charpy V-notch test, include test specimen orientation, testing temperature, and acceptance criteria. NOTE 2—Plates with universal rolled edges will be gas cut to length only.

To qualify asm plate to a particular product speci? This standard has been approved for use by agencies of the Department of Defense. To 1, excl 1 to 2, excl 2 to 4, excl 4 to 6, excl?

Standard Specification for General Requirements for Steel Plates for Pressure Vessels

Accordingly, the following deductions shall be made from the base elongation requirements in the applicable product speci? When the longer dimension is from to mm, inclusive, the? The purchaser shall be informed of the procedure followed in heat treating the specimens. NOTE 3—When the longer dimension a0m under mm, the variation shall not exceed 10 mm.

For plates produced from coil, the processor shall furnish the required certi? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.


ASTM International takes no position respecting the validity of any patent w20m asserted in connection with any item mentioned in this standard.

NOTE 4—This table and notes cover the tolerances for? C By agreement between the purchaser and the supplier, the heat analysis limit for vanadium is permitted to be increased to a value not higher than 0.

C Testing temperature as speci? The acceptability of defects revealed by this examination shall be judged in accordance with the requirements for quality in 9.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Yield strength tests, tension tests, and notch-toughness tests shall be made in accordance to the product specification to conform to the specified requirements. These radii apply when the precautions listed in X4. NOTE 4—The variations given in this table apply to plates that have a minimum speci?

The actual test temperature used shall be reported with the test results. Materials and Manufacture 5. Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if speci?

NOTE 3—When the longer dimension is under 36 in. Historic limitations of a plate based upon dimensions thickness, width, and length do not take into account current production and processing capabilities. Size, 10 by 7.


Reduction of Area Measurement S NOTE 7—Plates shall be in horizontal position on a? NOTE 5—This table and these notes cover the? Drop-Weight Test for Plates 0. Thickness over 2 in. The manufacturer shall report the specimen orientation, test temperature, and absorbed energy for each specimen tested.

Vacuum Carbon-Deoxidized Steel S Such plates shall have been quali? Mandatory conformance of such additional tests with the speci?

Class I is Other Than Killed with a speci? Unless otherwise provided in the applicable product speci? Those that are considered suitable for use with a product speci? If it is necessary to bend with the bend line parallel to the direction of? In general, such temperatures are higher as the steel thickness increases. Permissible Variations in Dimensions or Mass B For thicknesses of 4 in.

Through-Thickness Tension Tests S The survey data consists of test values obtained from six locations in addition to the locations speci? The effect is not so pronounced in thicker plates. Aa20, if purchaser speci?