The plates to be purchased according to this specification shall comply with requirements of the specifications SA-516/SA-516M and SA-20/SA-20M in ASME Code Section II, Part A 2019 Edition .
按本采购技术条件采购的钢板需满足ASME规范第II卷2019版中SA-516/SA-516M及SA-20/SA-20M的要求。2.0 Name of Material
Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service
4.0 Supply Condition
5.0 Chemical Composition
An analysis of each heat shall conform to the chemical requirements shown in the following table：
1) The sum of copper, nickel, chromium, and molybdenum shall not exceed 1.00% on heat analysis.
2)The sum of chromium and molybdenum shall not exceed 0.32% on heat analysis.
3)If aluminum is used as the grain refining element, the fine austenitic grain size requirement shall be deemed to be fulfilled if, on heat analysis, the aluminum content is not less than 0.020% total aluminum or, alterna- tively, 0.015% acid soluble aluminum.
10.0 Identification Marking.
The identification of plate shall be according to SA-20/SA-20M Para13. The required markings shall be legibly steel die stamped or marked by stenciling on finished plate in two places not less 300mm form the edges. Paint and steel die stamping marking is allowed . Identification mainly includes the following contents :
1） Applied ASME designation(year of issue not required);
2) Applied grade, type and class
3) Heat number and plate identification
4) Name, brand, or trademark of the manufacturer (for plates produced in discrete cut lengths of flat product).
5) Other specification described in code.
12.0 Material Test Report(MTR)
12.1 The manufacturer shall provide a material certificate complying with SA-20/SA-20M, to certify that the plate has been manufactured and tested in accordance with the requirements of the material specification.
11.2 The manufacturer shall report the results of all test required by the material specification and the contract and this specification. Heat number and nominal plate thickness shall be shown on the test reports. The year-date of the specification to which the plates are furnished shall be included in the test report.