API 650, Welded Tanks for Oil Storage, is a standard developed and published by the American Petroleum Institute (API) that establishes minimum requirements for the design, fabrication, erection, and inspection of welded storage tanks. This standard only applies to tanks with uniformly supported bottoms and to tanks in non-refrigerated service that have a maximum design temperature of 93 degrees Celcius (200 degrees Fahrenheit) or less. This standard was originally published in 1973, with the most recent 13th Edition being released in March of 2020.

Related Topics

• API 560 - Fired Heaters for General Refinery Service
• API 579-1/ASME FFS-1 - Fitness-For-Service (FFS)
• API 594 - Check Valves: Flanged, Lug, Wafer, and Butt-Welding
• API 620 - Design and Construction of Large, Welded, Low-Pressure Storage Tanks
• API 660 - Shell-and-Tube Heat Exchangers
• API 661 - Petroleum, Petrochemical, and Natural Gas Industries Air-Cooled Heat Exchangers
• API RP 1160 - Managing System Integrity for Hazardous Liquid Pipelines
• API RP 1173 - Pipeline Safety Management Systems
• API RP 1176 - Assessment and Management of Cracking in Pipelines
• API RP 1188 - Hazardous Liquid Pipeline Facilities Integrity Management
• API RP 538 - Industrial Fired Boilers for General Refinery and Petrochemical Service
• API RP 571 - Damage Mechanisms Affecting Fixed Equipment in the Refining Industry
• API RP 572 - Inspection of Pressure Vessels
• API RP 573 - Inspection of Fired Boilers and Heaters
• API RP 574 - Inspection Practices for Piping System Components
• API RP 575 - Inspection Practices for Atmospheric and Low Pressure Storage Tanks
• API RP 576 - Inspection of Pressure-Relieving Devices
• API RP 577 - Welding Processes, Inspection, and Metallurgy
• API RP 578 - Material Verification for New and Existing Alloy Piping
• API RP 580 - Risk Based Inspection (RBI)
• API RP 581 - Risk Based Inspection Technology
• API RP 583 - Corrosion Under Insulation and Fireproofing
• API RP 584 - Integrity Operating Windows
• API RP 585 - Pressure Equipment Integrity Incident Investigation
• API RP 651 - Cathodic Protection of Aboveground Petroleum Storage Tanks
• API RP 75 - Safety and Environmental Management System for Offshore Operations
• API RP 751 - Safe Operation of Hydrofluoric Acid Alkylation Units
• API RP 754 - Process Safety Performance Indicators for the Refining and Petrochemical Industries
• API RP 934 - Materials and Fabrication of Heavy Wall Pressure Vessels for High-Pressure Hydrogen Ser
• API RP 939-C - Guidelines for Avoiding Sulfidation (Sulfidic) Corrosion Failures in Oil Refineries
• API RP 941 - Steels for Hydrogen Service at Elevated Temperatures and Pressures
• API RP 970 - Corrosion Control Documents
• International Organization for Standardization (ISO)

Relevant Links

• API Standards Homepage
• Purchase Document

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