Welded Steel Tanks for Oil Storage

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Page O-2 Example of Under-Bottom Connection with Concrete Ringwall Foundation and Improved Tank Bottom and Shell Support . . . . . . . . . . . . . . . . O-3 O-3 Example of Under-Bottom Connection with Earth-Type Foundation . . . . . . . . O-4 P-1 Nomenclature for Piping Loads and Deformation . . . . . . . . . . . . . . . . . . . . . . . P-3 P-2A Stiffness Coefficient for Radial Load: Reinforcement on Shell . . . . . . . . . . . . . P-4 P-2B Stiffness Coefficient for Longitudinal Moment: Reinforcement on Shell . . . . . P-4 P-2C Stiffness Coefficient for Circumferential Moment: Reinforcement on Shell . . . P-5 P-2D Stiffness Coefficient for Radial Load: Reinforcement on Shell . . . . . . . . . . . . . P-5 P-2E Stiffness Coefficient for Longitudinal Moment: Reinforcement on Shell . . . . . P-6 P-2F Stiffness Coefficient for Circumferential Moment: Reinforcement on Shell . . . P-6 P-2G Stiffness Coefficient for Radial Load: Reinforcement in Nozzle Neck Only. . . P-7 P-2H Stiffness Coefficient for Longitudinal Moment: Reinforcement in Nozzle Neck Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-7 P-2I Stiffness Coefficient for Circumferential Moment: Reinforcement in Nozzle Neck Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-8 P-2J Stiffness Coefficient for Radial Load: Reinforcement in Nozzle Neck Only. . . P-8 P-2K Stiffness Coefficient for Longitudinal Moment: Reinforcement in Nozzle Neck Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-9 P-2L Stiffness Coefficient for Circumferential Moment: Reinforcement in Nozzle Neck Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-9 P-3A Construction of Nomogram for b 1 , b 2 , c 1 , c 2 Boundary . . . . . . . . . . . . . . . . . . P-11 P-3B Construction of Nomogram for b 1 , c 3 Boundary . . . . . . . . . . . . . . . . . . . . . . . P-11 P-4A Obtaining Coefficients Y F and Y L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-12 P-4B Obtaining Coefficient Y C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-13 P-5A Determination of Allowable Loads from Nomogram: F R and M L . . . . . . . . . . P-14 P-5B Determination of Allowable Loads from Nomogram: F R and M C . . . . . . . . . . P-14 P-6 Low-Type Nozzle with Reinforcement in Nozzle Neck Only . . . . . . . . . . . . . P-15 P-7 Allowable-Load Nomograms for Sample Problem. . . . . . . . . . . . . . . . . . . . . . P-16 P-8A Stress Factor f R Due to Radial Thrust F R , d/t n = 10 . . . . . . . . . . . . . . . . . . . . . P-33 P-8B Stress Factor f R Due to Radial Thrust F R , d/t n = 30 . . . . . . . . . . . . . . . . . . . . . P-33 P-8C Stress Factor f R Due to Radial Thrust F R , d/t n = 50 . . . . . . . . . . . . . . . . . . . . . P-34 P-8D Stress Factor f R Due to Radial Thrust F R , d/t n = 100 . . . . . . . . . . . . . . . . . . . . P-34 P-8E Stress Factor f θ Due to Radial Thrust F R , d/t n = 10 . . . . . . . . . . . . . . . . . . . . . P-35 P-8F Stress Factor f θ Due to Radial Thrust F R , d/t n = 30 . . . . . . . . . . . . . . . . . . . . . P-35 P-8G Stress Factor f θ Due to Radial Thrust F R , d/t n = 50 . . . . . . . . . . . . . . . . . . . . . P-36 P-8H Stress Factor f θ Due to Radial Thrust F R , d/t n = 100 . . . . . . . . . . . . . . . . . . . . P-36 P-9A Stress Factor f r Due to Circumferential Moment M C , d/t n = 10 . . . . . . . . . . . . P-37 P-9B Stress Factor f r Due to Circumferential Moment M C , d/t n = 30 . . . . . . . . . . . . P-37 P-9C Stress Factor f r Due to Circumferential Moment M C , d/t n = 50 . . . . . . . . . . . . P-38 P-9D Stress Factor f r Due to Circumferential Moment M C , d/t n = 100 . . . . . . . . . . . P-38 P-9E Stress Factor f θ Due to Circumferential Moment M C , d/t n = 10. . . . . . . . . . . . P-39 P-9F Stress Factor f θ Due to Circumferential Moment M C , d/t n = 30. . . . . . . . . . . . P-39 P-9G Stress Factor f θ Due to Circumferential Moment M C , d/t n = 50. . . . . . . . . . . . P-40 P-9H Stress Factor f θ Due to Circumferential Moment M C , d/t n = 100. . . . . . . . . . . P-40 P-10A Stress Factor f r Due to Longitudinal Moment M L , d/t n = 10 . . . . . . . . . . . . . . P-41 P-10B Stress Factor f r Due to Longitudinal Moment M L , d/t n = 30 . . . . . . . . . . . . . . P-41 P-10C Stress Factor f r Due to Longitudinal Moment M L , d/t n = 50 . . . . . . . . . . . . . . P-42 P-10D Stress Factor f r Due to Longitudinal Moment M L , d/t n = 100 . . . . . . . . . . . . . P-42 P-10E Stress Factor f θ Due to Longitudinal Moment M L , d/t n = 10 . . . . . . . . . . . . . . P-43 P-10F Stress Factor f θ Due to Longitudinal Moment M L , d/t n = 30 . . . . . . . . . . . . . . P-43 P-10G Stress Factor f θ Due to Longitudinal Moment M L , d/t n = 50 . . . . . . . . . . . . . . P-44 P-10H Stress Factor f θ Due to Longitudinal Moment M L , d/t n = 100 . . . . . . . . . . . . . P-44 P-11 Stress Reduction Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-45 01 03 03 x
Page Tables 1-1 Status of Appendixes to API Standard 650. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2-1 Maximum Permissible Alloy Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2-2 Acceptable Grades of Plate Material Produced to National Standards . . . . . . . . 2-4 2-3a Material Groups, SI Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2-3b Material Groups, US Customary Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2-4 Minimum Impact Test Requirements for Plates. . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 3-1 Annular Bottom-Plate Thicknesses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 3-2 Permissible Plate Materials and Allowable Stresses . . . . . . . . . . . . . . . . . . . . . . 3-8 3-3 Thickness of Shell Manhole Cover Plate and Bolting Flange . . . . . . . . . . . . . .3-12 3-4 Dimensions for Shell Manhole Neck Thickness . . . . . . . . . . . . . . . . . . . . . . . .3-12 3-5 Dimensions for Bolt Circle Diameter D b and Cover Plate Diameter D c for Shell Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13 3-6 Dimensions for Shell Nozzles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 3-7 Dimensions for Shell Nozzles: Pipe, Plate, and Welding Schedules . . . . . . . . .3-19 3-8 Dimensions for Shell Nozzle Flanges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20 3-9 Dimensions for Flush-Type Cleanout Fittings . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 3-10 Minimum Thickness of Cover Plate, Bolting Flange, and Bottom Reinforcing Plate for Flush-Type Cleanout Fittings . . . . . . . . . . . . . . . . . . . . .3-23 3-11 Thicknesses and Heights of Shell Reinforcing Plates for Flush-Type Cleanout Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-26 3-12 Dimensions for Flush-Type Shell Connections . . . . . . . . . . . . . . . . . . . . . . . . .3-29 3-13 Dimensions for Roof Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36 3-14 Dimensions for Flanged Roof Nozzles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36 3-15 Dimensions for Threaded Roof Nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36 3-16 Dimensions for Drawoff Sumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-40 3-17 Requirements for Platforms and Walkways . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-41 3-18 Requirements for Stairways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-41 3-19 Rise, Run, and Angle Relationships for Stairways. . . . . . . . . . . . . . . . . . . . . . .3-43 3-20 Section Moduli of Stiffening-Ring Sections on Tank Shells . . . . . . . . . . . . . . .3-46 3-21a Uplift Loads (SI Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-52 3-21b Uplift Loads (US Customary Units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-53 A-1a Typical Sizes and Corresponding Nominal Capacities for Tanks with 1800 mm Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 A-1b Typical Sizes and Corresponding Nominal Capacities for Tanks with 72-in. Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3 A-2a Shell-Plate Thicknesses for Typical Sizes of Tanks with 1800 mm Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4 A-2b Shell-Plate Thicknesses for Typical Sizes of Tanks with 72-in. Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5 A-3a Typical Sizes and Corresponding Nominal Capacities for Tanks with 2400 mm Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6 A-3b Typical Sizes and Corresponding Nominal Capacities for Tanks with 96-in. Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7 A-4a Shell-Plate Thicknesses for Typical Sizes of Tanks with 2400 mm Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8 A-4b Shell-Plate Thicknesses for Typical Sizes of Tanks with 96-in. Courses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9 A-5 Flush-Type Bolted Door Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12 A-6 Raised-Type Bolted Door Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14 E-1 Seismic Zone Tabulation for Areas Outside the United States . . . . . . . . . . . . . .E-4 E-2 Seismic Zone Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-4 xi 98 00 01 03 03 00 01 01 03
Page 1: Welded Steel Tanks for Oil Storage
Page 4 and 5: SPECIAL NOTES API publications nece
Page 6 and 7: FOREWORD This standard is based on
Page 9 and 10: CONTENTS Page 1 SCOPE . . . . . . .
Page 11: Page 3-4B Details of Shell Manholes
Page 15 and 16: Welded Steel Tanks for Oil Storage
Page 17 and 18: WELDED STEEL TANKS FOR OIL STORAGE
Page 19: WELDED STEEL TANKS FOR OIL STORAGE
Page 22 and 23: 2-2 API STANDARD 650 °F 60 °C 16
Page 24 and 25: 2-4 API STANDARD 650 Table 2-2—Ac
Page 26 and 27: 2-6 API STANDARD 650 Table 2-3a—M
Page 28 and 29: 2-8 API STANDARD 650 Eureka Prince
Page 30 and 31: 2-10 API STANDARD 650 2.5.3 When AS
Page 33 and 34: SECTION 3—DESIGN 3.1 JOINTS 3.1.1
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WELDED STEEL TANKS FOR OIL STORAGE
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SECTION 5—ERECTION 01 ● ● ●
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SECTION 6—METHODS OF INSPECTING J
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7-2 API STANDARD 650 heat-affected-
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8-2 API STANDARD 650 MANUFACTURER
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A-2 API STANDARD 650 Table A-1a—T
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A-4 API STANDARD 650 Table A-2a—S
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A-6 API STANDARD 650 Table A-3a—T
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A-8 API STANDARD 650 Table A-4a—S
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A-10 API STANDARD 650 03 03 03 00 0
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A-12 API STANDARD 650 Table A-5—F
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A-14 API STANDARD 650 A.10.3 When a
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APPENDIX B—RECOMMENDATIONS FOR DE
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C-2 API STANDARD 650 C.3.4.3 Any pe
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APPENDIX D—TECHNICAL INQUIRIES D.
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E-2 API STANDARD 650 3 2B 3 2B 2B 3
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E-4 API STANDARD 650 03 ● E.3.2 E
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E-6 API STANDARD 650 10.0 Table E-3
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E-8 API STANDARD 650 ● shall be l
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F-2 API STANDARD 650 Does tank have
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F-4 API STANDARD 650 F.4.2 The maxi
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APPENDIX G—STRUCTURALLY SUPPORTED
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H-2 API STANDARD 650 01 specificati
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H-4 API STANDARD 650 01 lated from
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H-6 API STANDARD 650 01 above the n
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APPENDIX I—UNDERTANK LEAK DETECTI
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J-2 API STANDARD 650 Table J-1—Ma
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APPENDIX K—SAMPLE APPLICATION OF
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API STANDARD 650 STORAGE TANK DATA
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API STANDARD 650 STORAGE TANK DATA
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01 TABLE L-1— INDEX OF DECISIONS
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M-2 API STANDARD 650 Temperature Ta
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M-4 API STANDARD 650 When the equat
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APPENDIX O—RECOMMENDATIONS FOR UN
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A WELDED STEEL TANKS FOR OIL STORAG
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03 00 00 ● APPENDIX P—ALLOWABLE
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S-2 API STANDARD 650 ● ● ●
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S-4 API STANDARD 650 00 rial yield
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S-6 API STANDARD 650 Table S-5—Yi
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APPENDIX T—NDE REQUIREMENTS SUMMA
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APPENDIX U—ULTRASONIC EXAMINATION
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Welded Steel Tanks for Oil Storage

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