1.1 This specification covers a group of requirements which, with the exceptions of Section 4.3, Section 12, Section 19, and Section 20, are mandatory requirements to the ASTM pipe product specifications noted below unless the product specification specifies different requirements, in which case the requirement of the product specification shall prevail.
1.2 Sections 4.3 or 19 are mandatory if the product specification has a requirement for product analysis or flattening tests.
1.3 Section 20 is mandatory if the product specification has a hydrostatic test requirement without defining the test parameters.
1.4 Section 12 is for information only.
1.5 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.
| Title of Specification | ASTM DesignationA |
| Seamless Carbon Steel Pipe for High-Temperature Service | A106 |
| Seamless and Welded Austenitic Stainless Steel Pipe | A312/A312M |
| Seamless and Welded Steel Pipe for Low-Temperature Service | A333/A333M |
| Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service | A335/A335M |
| Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service | A358/A358M |
| Carbon and Ferritic Alloy Steel Forged and Bored Pipe for High-Temperature Service | A369/A369M |
| Seamless Austenitic Steel Pipe for Use With High-Temperature Central-Station Service | A376/A376M |
| Metal-Arc-Welded Steel Pipe for Use With High-Pressure Transmission Systems | A381 |
| Seamless Ferritic Alloy-Steel Pipe Specially Heat Treated for High-Temperature Service | A405 |
| Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service | A409/A409M |
| Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service | A426 |
| Austenitic Steel Forged and Bored Pipe for High-Temperature Service | A430/A430M |
| Centrifugally Cast Austenitic Steel Pipe for High-Temperature Service | A451 |
| Centrifugally Cast Austenitic Steel Cold-Wrought Pipe for High-Temperature Service | A452 |
| Seamless Carbon Steel Pipe for Atmospheric and Lower Temperatures | A524 |
| Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures | A608 |
| Centrifugally Cast Carbon Steel Pipe for High-Temperature Service | A660 |
| Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures | A671 |
| Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures | A672 |
| Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures | A691 |
| Seamless, Welded Ferritic, and Martensitic Stainless Steel Pipe | A731/A731M |
| Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe | A790/A790M |
| Single- or Double-Welded Austenitic Stainless Steel Pipe | A813/A813M |
| Cold-Worked Welded Austenitic Stainless Steel Pipe | A814/A814M |
| Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments | A872 |
AThese designations refer to the latest issue of the respective specifications.
1.6 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.
Note 1--The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."
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