Реферат

This specification covers carbon and low alloy steel tubes. Steel samples shall be melt processed and shall either be ingot cast or strand cast. Heat and product analyses shall be performed on the steel materials. Steel specimens shall also undergo tensile tests and shall conform to required values of yield strength and elongation. Flattening test, reverse flattening test, flaring test, flange test, hardness test, hydrostatic test, air underwater pressure test, and nondestructive tests shall be performed on the steel materials.

Область применения

1.1 This specification covers a group of requirements which, with the exceptions of 5.3 and Sections6, 7, 18, 19, 20, 21, 22, 23, and 24, are mandatory requirements to the following ASTM tubular product specifications:

Title of SpecificationASTM DesignationElectric-Resistance-Welded Carbon Steel and Carbon Manganese Steel Boiler TubesA 178/A 178M Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser TubesA 179/A 179MSeamless Carbon Steel Boiler Tubes for High-Pressure ServiceA 192/A 192M Seamless Medium-Carbon Steel Boiler and Superheater Tubes A 210/A 210M Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser TubesA 214/A 214M Seamless and Electric-Welded Low-Alloy Steel Tubes A 423/A 423MSeamless Cold-Drawn Carbon Steel Feedwater Heater TubesA 556/A 556MSeamless, Cold-Drawn Carbon Steel Tubing for Hydraulic System ServiceA 822/A 822M

These designations refer to the latest issue of the respective specifications.

1.2 One or more of Sections , , , , , , , , , and apply when the product specification or purchase order has a requirement for the test or analysis described by these sections.

1.3 In case of conflict between a requirement of the product specification and a requirement of this general requirement specification only the requirement of the product specification need be satisfied.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation (SI) of the product specification is specified in the order.