ASME STS-1–2021 pdf download

ASME STS-1–2021 pdf download.Steel Stacks.
2.2.1 ð21Þ General Considerations (a) Materials shall conform to the applicable require- ments in the sections hereinafter detailed. (b) The contractor shall submit one copy of the chemical-composition and mechanical-property mill test reports for all steels used to the owner for approval prior to construction unless otherwise indicated. Approval shall include confirmation that steels used meet all requirements. (c) When required for testing purposes, the contractor will furnishthe ownerwithidentifiedscrap samples ofthe shell plates. (d) This section does not apply to linings and coatings of stacks. See section 3. (e) Corrosion allowances shall be considered (typically 1 ∕ 16 in. to 1 ∕ 8 in.) where carbon, high-strength, low-alloy, and alloysteels are used. Experience orthe results oftests should be used when selecting an allowance. (f) Galvanic corrosion shall be considered. 2.2.2 ð21Þ Shell and Base Plates. For more information on this subject, see Nonmandatory Appendix B, Tables B-1 through B-11. Additional materials or material grades may be applicable. (a) Shell and base plates typically may be of one or more of the following structural quality materials: (1) carbon steels conforming to ASTM A36, ASTM A283, or ASTM A529 (2) high-strength, low-alloy steels conforming to ASTM A242, ASTM A572, or ASTM A588 (3) stainless steels conforming to ASTM A666 (4) stainless chromium-nickel steel clad plate conforming to ASTM A264 and nickel-base alloy clad steel conforming to ASTM A265 may be considered for use as shell plate
(5) metals listed in Nonmandatory Appendix B, Table B-9 may be used not only as sheet linings and clad- ding but also as solid plate for shell plates (b) Pressure vessel qualitycarbon steels such as ASTM A285, ASTM A515, and ASTM A516; alloy steels such as ASTM A387; and stainless steels such as ASTM A240 may be substituted for structural quality materials as appro- priate. (c) Carbon steels such as ASTM A516, Grades 55 through 70 and low-alloy steels such as ASTM A517, Grades A through T and ASTM A537 are usually specified for service temperatures as low as −50°F (−46°C). Nickel- containingalloysteels suchas ASTM A203, Grades AandB are usuallyused for service temperatures as low as −75°F (−59°C), and ASTM Grades D, E, and F are often used for service temperatures of −150°F (−101°C). Nickel- containing alloy steels and nickel stainless steels are used for even lower temperatures. Suppliers ofstructural quality steels will provide data on notch toughness when specified.
2.2.3 ð21Þ Stiffeners and Structural Braces and/orFrame- work (a) Stiffeners and structural braces and/or framework typicallymaybe ofone ormore ofthe followingmaterials: (1) carbon steels conforming to ASTM A36, ASTM A283, or ASTM A529 (2) high-strength, low-alloy steels conforming to ASTM A242, ASTM A572, or ASTM A588 (3) stainless steels conforming to the ASTM A240 or ASTM A666 or nickel-containing alloys having composi- tions similar to those of the shell plate (4) materials from paras. 2.2.2(b) and 2.2.2(c) may be considered (b) Protection may be required against corrosion for components exterior to the shell and against corrosion and/or oxidation for components on the shell interior. Section 3 should be consulted and used as appropriate. 2.2.4 Guy Wires, Cables, or Fittings (a) Guy wires and cables typically may be of one or more of the following materials, and consideration should be given to the initial stretch of the material: (1) aluminum-coated steel wire strand conforming to ASTM A474 (2) zinc-coated (galvanized) steel wire strand conforming to ASTM A475 and ASTM A586 (3) zinc-coated (galvanized) steel wire rope conforming to ASTM A603 (4) stainless steel wire strand conforming to ASTM A368 (b) Fittings for guys and cables should comply with manufacturers’ standards and be of aluminum-coated, zinc-coated (galvanized), orstainless steel as appropriate. Aluminum and zinc coating weights and stainless steel grade should match those of the guys or cables on which they are used.