ASME SA-213-2021 pdf download.Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
1. Scope 1.1 This specification covers seamless ferritic and auste- nitic steel boiler, superheater, and heat-exchanger tubes, des- ignated Grades T5, TP304, etc. These steels are listed in Tables 1 and 2. 1.2 Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. 1.3 The tubing sizes and thicknesses usually furnished to this specification are 1 ⁄ 8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, ifspecified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification. 1.4 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 of this specification is specified in the order. 1.5 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers Trade (TBT) Committee.
2. Referenced Documents 2.1 ASTM Standards: A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes E112 Test Methods for Determining Average Grain Size 2.2 AWS Specifications A5.5/A5.5M Specification for Low-Alloy Steel Electrodes for Shielded Metal Arc Welding A5.23/A5.23M Specification for Low-Alloy Steel Elec- trodes and Fluxes for Submerged Arc Welding A5.28/A5.28M Specification for Low-Alloy Steel Elec- trodes for Gas Shielded Arc Welding A5.29/A5.29M Low-Alloy Steel Electrodes for Flux Cored Arc Welding
3. Terminology 3.1 Definitions—For definitions of terms used in this specification, refer to Terminology A941. 4. Ordering Information 4.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for products under this specification. Such requirements to be considered include, but are not limited to, the following: 4.1.1 Quantity (feet, metres, or number of lengths), 4.1.2 Name of material (seamless tubes), 4.1.3 Grade (Tables 1 and 2), 4.1.4 Condition (hot finished or cold finished), 4.1.5 Heat treatment type (Table 3). 4.1.6 Controlled structural characteristics (see 6.3),ASME SA-213 pdf download.