ASTMA999

Designation:A 999/A 999M-04aNTERNATIONALStandard Specification forGeneral Requirements for Alloy and Stainless Steel Pipe1This standurd is issued under the fxed designation A 999/A 999M:the number immediately following the designation indicates the yearof original adopioninhecase of revision.the yeraiA number intes indieates the yer of last reapproval.A supersript epsilon()indicares an editorial changeie last revision or reapproval.1.Scope*SI units are shown in brackets.The values stated in each1.1 This specification2 covers a group of general require-system are not exact equivalents;therefore each system is to bements that.unless otherwise specified in an individual speci-used independently of the other without combining values infication,shall apply to the ASTM product specifications notedany way.The inch-pound units apply unless the "M"designa.below.tion (SI)of the product specification is spccified in the order.1.2 In the case of conflict between a requirement of aNore 1-The dimensionless designator NPS (nominal pipe size)isproduct specification and a requirement of this specification,used in this standard for such traditional terms as "nominal diameter,"the product specification shall prevail.In the case of conflict'size.""nominal bore,"and "nominal size."between a requirement of the product specification or a1.4 The following precautionary statement pertains only torequirement of this specification and a more stringent require-the test method portion,Scction 22,of this specification:Thisment of the purchase order,the purchase order shall prevail.standard does not purport to address all of the safery concems,Title of SpecificalionASTM Deslg-if any,associated with its use.It is the responsibility of the usernatlon3of this standard to establish appropriate safety and healthSeamiess and Welded Austenitic Slalnless Steel PipesA312/A312Mpractices and determine the applicability of regulatory limita-Seamlass and Welded Sleel Plpe for Low-TemperatureA333/A333Mtions prior to use.ServiceSeamiess Ferrltic Allay-Steel Pipe for High TemperatureA335/A335M2.Referenced Documents58W1G8Electric-Fusion-Welded Austenitic Chromium-Nlcke!AlloyA358/A358M2.1 ASTM Standards:4Steel Plpe for High-Temperature ServiceA 312/A 312M Specification for Seamless and Welded Aus-Carbon and Ferritic Alloy Steel Forged and Bored Plpe forA9/A369MHlgh-Temperature Servicetenitic Stainless Steel PipesSeamless Austenitic Steel Plpe for Use With HighA 376/A 37EMA 333/A 333M Specification for Seamless and WeldedTomperature Central-Slation ServiceSteel Pipe for Low-Temperature ServiceWelded Large Diameter Austenitic Steel Pipe for CorrosiveA409A409Mor High-Temperature ServicaA 335/A 335M Specification for Seamless Fcrritic Alloy-Welded,Unannealed Auslenitic Stainless Steel TubularA778Steel Pipc for High-Temperature ServiceProductsA790A790MA 358/A 358M Specification for Electric-Fusion-WeldedSeamless and Welded Ferritic/AustenlticStainless Steel PipeAustenitic Chromium-Nickel Stainless S