PDF《ASTM A213 T12》

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Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:1 of ASTM A213 T12, ASME SA213 T12 specification.docx ASTM A213 T12 ASTM A213 T12 is the part of ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, Heat-Exchanger Tubes. ASTM A213 T12 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. 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. The tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and in addition to heating for hot forming. The ferritic alloy and ferritic stainless steels shall be reheated. On the other hand, austenitic stainless steel tubes shall be furnished in the heat-treated condition. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution temperature, tubes may be individually quenched in water or rapidly cooled by other means. Tension test, hardness test, flattening test, and flaring test shall be done to each tube. Also, each tube shall be subjected to the nondestructive electric test or hydrostatic test. Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:2 of ASTM A213 T12, ASME SA213 T12 specification.docx ASTM A209 through A213 ? Other standard specifications include the categories of A209 seamless carbon-molybdenum alloy-steel boiler and superheater tubes;

? A210 seamless medium-carbon steel boiler and superheater tubes and A213 seamless ferritic and austenitic steel boiler, superheater and heat-exchanger tubes. ? Piping wall thicknesses range from 1/2 inch to

5 inches. A213 grades also have the letter H or M assigned, which changes the composition and specifications for that series. ? This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard;

the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. View the data of the steel grade as below: Mechanical properties for ASTM A213 T12 Low Alloy Steel Tensile strength(min) 415Mpa Yield strength(min) 220Mpa Elongation 30% Delivery condition annealed Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:3 of ASTM A213 T12, ASME SA213 T12 specification.docx Chemical Composition (%) for ASTM A213 T12 Low Alloy Steel UNS Designation K11562 Carbon 0.05C0.15 Manganese 0.30C0.61 Phosphorus 0.025 Sulfur 0.025B Silicon 0.5 Nickel … Chromium 0.80C1.25 Molybdenum 0.44C0.65 Vanadium … Boron … Niobium … Nitrogen … Aluminum … Tungsten … Other Elements … Referenced Documents (purchase separately) Other 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 Sunny Steel Enterprise Ltd. Collect Steel pipe and fitting Resources Http://www.sunnysteel.com E-mail: [email protected] Page:4 of ASTM A213 T12, ASME SA213 T12 specification.docx ASTM A213 Standard Scope 1.1 This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T5, TP304, etc. These steels are listed in Tables