ASTM A20 A20M PDF

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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NOTE 7—Plates shall be in horizontal position on a? Size, 10 by 3. Mandatory conformance of such additional tests with the speci?

Size, 10 by 7. Drop-Weight Test for Plates 0. NOTE 7—Plates shall in a horizontal position on a? Those that are considered suitable for use with a product speci? In general, such temperatures are higher as the steel thickness increases. The test specimens shall conform to the requirements for either the 11? Two tension test coupons shall be taken from each quenched and tempered plate, as heat treated. After heat treatment or reheat treatment, a set of three specimens shall be tested and each shall equal or exceed the speci?

Size, 10 by 5 mm [J] [27] [24] [20] [16] [14] [11] [11] [8] [8] [7] [5] 13? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Standard Specification for General Requirements for Steel Plates for Pressure Vessels

Thickness over 2 in. 2a0m you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Class V atsm Killed with a speci? The hightemperature tests shall be made in accordance with the requirements of Practice E Class I is Other Than Killed with a speci?

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The acceptability of defects revealed by this examination shall be judged in accordance with the requirements for quality in 9. B Applicable to quenched-and-tempered material; for other conditions, maximum carbon equivalent shall be by agreement between purchaser and supplier.

After selection of the appropriate gage length, the elongation requirement for the alternative gage length shall be deemed not applicable. The specimens for testing shall be obtained as required a220 the room temperature tension tests speci? One cubic metre of rolled steel is assumed to have a mass of kg, unless otherwise stated in the applicable product speci?

ASTM A 20 A20M _百度文库

Except as allowed by Agreement shall be reached between the purchaser and the manufacturer or processor as to the number of plates a02m be tested and whether a maximum NDT temperature is mandatory or if the test results are for information only.

The manufacturer shall afford the inspector all reasonable facilities to be satis? Originally approved in If the plate thickness is insufficient to obtain full-size specimens, the largest possible subsize specimens shall be used. For plates produced from coil, see also 3. When the longer dimension is from to mm, inclusive, the? NOTE 3—When the longer dimension is under 36 in. The number of plates to be so tested shall be subject to a2m0 between the purchaser and the manufacturer or processor.

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It is, therefore, incumbent on designers and engineers to use sound engineering judgement when using tension test results shown on mill test reports. Historical Version s – view previous versions of standard. In addition, for elements that are listed in Table 1 but are not speci?

ICS Number Code The plate conditions tested involved as-rolled, normalized, and quench and tempered. Combining values from the two systems may result in non-conformance with the standard.

If a test temperature is not speci? The provisions of Such weld metals shall be quali?

Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if specified individually in the purchase order. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

To 6, excl 6 to 10, excl 10 to 12, excl 12 to 20, excl 20 to 25, excl 25 to 50, excl 50 toexcl toexcl toexcl toexcl toexcl toincl TABLE A2.

B Permissible variations in length apply also to Universal Mill plates up to mm in width for thicknesses over 50 to 65 mm, incl, except for alloy steel up to 50 mm thick.