【国外标准】 Standard Specification for General Requirements for Alloy and Stainless Steel Pipe

1.1 This specification2 covers a group of general requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM product specifications noted below.1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail.Title of Specification ASTM Desig-nation3   Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes A312/A312MSeamless and Welded Steel Pipe for Low-TemperatureService and Other Applications with Required NotchToughness A333/A333MSeamless Ferritic Alloy-Steel Pipe for High TemperatureService A335/A335MElectric-Fusion-Welded Austenitic Chromium-Nickel StainlessSteel Pipe for High-Temperature Service and GeneralApplications A358/A358MCarbon and Ferritic Alloy Steel Forged and Bored Pipe forHigh-Temperature Service A369/A369MSeamless Austenitic Steel Pipe for High-TemperatureService A376/A376MWelded Large Diameter Austenitic Steel Pipe for Corrosiveor High-Temperature Service A409/A409MCentrifugally Cast Ferritic Alloy Steel Pipe forHigh-Temperature Service A426/A426MCentrifugally Cast Austenitic Steel Pipe for High-Temperature Service A451/A451MCentrifugally Cast Iron-Chromium-Nickel High-AlloyTubing for Pressure Application at HighTemperatures A608/A608MWelded, Unannealed Austenitic Stainless Steel TubularProducts A778/A778MSeamless and Welded Ferritic/AusteniticStainless Steel Pipe A790/A790MSingle- or Double-Welded Austenitic Stainless Steel Pipe A813/A813MCold-Worked Welded Austenitic Stainless Steel Pipe A814/A814MCentrifugally Cast Ferritic/Austenitic Stainless Steel Pipefor Corrosive Environments A872/A872MFerritic/Austenitic (Duplex) Stainless Steel Pipe ElectricFusion Welded with Addition of Filler Metal A928/A928MSpray-Formed Seamless Austenitic Stainless Steel Pipes A943/A943MSpray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe A949/A949MAustenitic Chromium-Nickel-Silicon Alloy Steel Seamlessand Welded Pipe A9541.3 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 apply unless the “M” designation (SI) of the product specification is specified in the order.NOTE 1: The dimensionless designator NPS (nominal pipe size) is used in this standard for such traditional terms as “nominal diameter,” “size,” “nominal bore,” and “nominal size.”1.4 The following precautionary statement pertains only to the test method portion, Section 21, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 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.