【国外标准】 Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes

This specification covers general requirements for ferritic alloy steel, austenitic alloy steel, and stainless steel tubes. The steel shall made by any process. The material shall conform to the tensile property requirements prescribed in the individual product specification. Yield strength tests and elongation tests shall be made to conform to the requirements. Flattening test, reverse flattening test, reverse bend test, flaring test, flange test, hardness test, ultrasonic test, eddy current test, flux leakage test, and hydrostatic test shall be made to conform to the requirements specified.1.1 This specification covers a group of requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM product specifications noted below.Title of Specification ASTMDesignationA   Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes A209/A209MSeamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes A213/A213MWelded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A249/A249MElectric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes A250/A250MSeamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service A268/A268MSeamless and Welded Austenitic Stainless Steel Tubing for General Service A269/A269MSeamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing A270/A270MSeamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service A334/A334MWelded Austenitic Stainless Steel Feedwater Heater Tubes A688/A688MAustenitic Stainless Steel Tubing for Breeder Reactor Core Components A771/A771MSeamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service A789/A789MSeamless and Welded Ferritic Stainless Steel Feedwater Heater Tubes A803/A803MSeamless Austenitic and Martensitic Stainless Steel Duct Tubes for Liquid Metal-Cooled Reactor Core Components A826/A826MHigh-Frequency Induction Welded, Unannealed, Austenitic Steel Condenser Tubes A851Welded Austenitic Alloy Steel Boiler, Superheater, Condenser, and Heat Exchanger Tubes with Textured Surface(s) A1098/A1098M1.2 In the case of conflict between a requirement of a product specification and a requirement of this general requirements specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this general requirements specification and a more stringent requirement of the purchase order, the purchase order shall prevail.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation (SI) of the product specification is specified in the order.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.