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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Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if speci? Such testing procedures are not intended to de? Drop-Weight Test for Plates 0. If more than one organization is involved in the astj rolling and processing operations, the organization that did the hot rolling is termed the manufacturer and the organization that does one or more processing operations is termed a processor.

Stainless Chromium Steel-Clad Plate. A200m permissible camber, in. Accordingly, the following deductions shall be made from the base elongation requirements in the applicable product speci?

B Applicable to quenched-and-tempered material; for other conditions, maximum carbon equivalent shall be by agreement between purchaser and supplier. ICS Number Code Thus, a range from 60 to 72 in.

Flatness Tolerances for Speci? The manufacturer shall report the specimen orientation, test temperature, and absorbed energy for each specimen tested.

NOTE 3—When the longer asrm is under mm, the variation in? NOTE 8—Plates shall be in horizontal position on a? ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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The specimens for testing shall be obtained as required for the room temperature tension tests speci? Notwithstanding the absence of a signature, the organization submitting the EDI transmission is responsible for the content of the report. High-Temperature Tension Tests S7. C Testing temperature as speci?

ASTM A 20 A20M _百度文库

Packaging, Marking, and Loading for Shipment When the longer dimension is from to mm, inclusive, the permissible? B Full size 10 by 10 mm specimens. Additional Tension Test S4. Restrictive Plate Flatness S The tensile properties will vary within the same plate-as-rolled or piece, be it as-rolled, control-rolled, or heat-treated.

The purchaser shall be informed of the procedure followed in heat treating the specimens. B Permissible variations in length apply also to Universal Mill plates up to 12 in. Class I is Other Than Killed with a speci? This exclusion does not apply to those plates with speci? NOTE wstm table and notes cover the tolerances for?

Agreement shall be reached between the purchaser and the manufacturer or processor as to the number of plates to be tested and whether a maximum NDT temperature is mandatory or if the test results are for information only. All mechanical-property tests shall be repeated and the plate surface shall be reexamined for surface defects when it is resubmitted for inspection. The manufacturer shall afford the inspector all reasonable facilities to be satis?

NOTE 2—Any stress relief of test specimens intended to simulate post-weld heat treatment is not included in the above heat treatment. Acceptable on Edges Cut in Fabrication Depth 5? For drop-weight test, give testing temperature4. The year-date of the speci? Higher strength steels require larger die openings.

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Sharp corners on edges and on punched or gas cut holes should be removed by chamfering or grinding to a radius. Accordingly, the following deductions shall be made from the base elongation requirements in 2 in.

Standard Specification for General Requirements for Steel Plates for Pressure Vessels

Class VI is Killed with a speci? When the larger dimension is from 36 to 72 in. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

After heat treatment or reheat treatment, a set of three specimens shall be tested and each shall equal or exceed the speci? Permitted variations for other sizes are subject to agreement between the purchaser and the manufacturer or processor, whichever is applicable.

This specification covers a group of common requirements that apply to rolled steel plates for pressure vessels. Unless otherwise agreed upon with the purchaser, it is the responsibility of the manufacturer to select suitable process procedures.

The coils subsequently cool to ambient temperature with outer and inner laps cooling more rapidly than central laps. For Charpy V-notch test, include test specimen orientation, testing temperature, and acceptance criteria. For quenched and tempered plates, the two tension test coupons shall be taken from opposite ends of the plate.