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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.

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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 SpecificationASTM
Designation^A Seamless Carbon-Molybdenum Alloy-Steel Boiler and
Superheater TubesA 209/A 209M Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater,
and Heat-Exchanger TubesA 213/A 213M Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger,
and Condenser TubesA 249/A 249M Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and
Superheater TubesA 250/A 250M Seamless and Welded Ferritic and Martensitic Stainless Steel
Tubing for General ServiceA 268/A 268M Seamless and Welded Austenitic Stainless Steel Tubing for
General ServiceA 269 Seamless and Welded Austenitic Stainless Steel Sanitary TubingA 270 Seamless and Welded Carbon and Alloy-Steel Tubes for
Low-Temperature ServiceA 334/A 334M Welded Austenitic Stainless Steel Feedwater Heater TubesA 668/A 668M Austenitic Stainless Steel Tubing for Breeder Reactor Core
ComponentsA 771/A 771M Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing
for General ServiceA 789/A 789M Welded Ferritic Stainless Steel Feedwater Heater TubesA 803/A 803M Austenitic and Ferritic Stainless Steel Duct Tubes for Breeder
Reactor Core ComponentsA 826/A 826M High-Frequency Induction Welded, Unannealed Austenitic Steel
Condenser TubesA 851

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

1.2 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.