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A collection of featured documents from our library that are popular among our users or otherwise noteworthy.

API Std 650 14th edition

Welded Tanks for Oil Storage

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API Std 608 7th edition

Metal Ball Valves—Flanged, Threaded, and Welding Ends

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API RP 552 2nd edition

Transmission Systems

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API Spec 5L 47th Edition

Line Pipe

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API Std 653 5th edition

Tank Inspection, Repair, Alteration, and Reconstruction

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API RP 500 4th edition

Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1, and Division 2 4th 2023 C50004 $302.00 108 Rp 505 Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2

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API Std 1104 22nd edition

Welding of Pipelines and Related Facilities, Includes Errata 1 (2023) and Addendum 1 (2026)

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API RP 5C1 18th edition

Recommended Practice for Care and Use of Casing and Tubing

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API Spec 6A 21st edition

Specification for Wellhead and Tree Equipment

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API Std 53 (R2023) 5th edition

Well Control Equipment Systems for Drilling Wells

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All Documents

API TR 934-F, Part 3 1st edition
Subcritical Cracking of Modern 2¼Cr-1Mo-¼V Steel Due to Dissolved Internal Hydrogen and H2 Environment, Research Report
API TR 934-F, Part 3 1st edition

Subcritical Cracking of Modern 2¼Cr-1Mo-¼V Steel Due to Dissolved Internal Hydrogen and H2 Environment, Research Report

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API TR 934-F, Part 4 1st edition
The Effects of Hydrogen for Establishing a Minimum Pressurization Temperature (MPT) for Heavy Wall Steel Reactor Vessels
API TR 934-F, Part 4 1st edition

The Effects of Hydrogen for Establishing a Minimum Pressurization Temperature (MPT) for Heavy Wall Steel Reactor Vessels

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API RP 934-G 1st edition
Design, Fabrication, Operational Effects, Inspection, Assessment, and Repair of Coke Drums and Peripheral Components in Delayed Coking Units
API RP 934-G 1st edition

Design, Fabrication, Operational Effects, Inspection, Assessment, and Repair of Coke Drums and Peripheral Components in Delayed Coking Units

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API TR 934-H 1st edition
Inspection, Assessment, and Repair of Heavy Wall Reactor Vessels in High-Temperature High- Pressure Hydrogen Service
API TR 934-H 1st edition

Inspection, Assessment, and Repair of Heavy Wall Reactor Vessels in High-Temperature High- Pressure Hydrogen Service

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API TR 934-J 2nd Edition PDF Preview
API TR 934-J 2nd Edition

Inspection, Assessment, Effects of Operating Practices, Monitoring, and Repair of Coke Drums and Peripheral Components in Delayed Coking Units

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API Publ 935 1st edition
Thermal Conductivity Measurement Study of Refractory Castables
API Publ 935 1st edition

Thermal Conductivity Measurement Study of Refractory Castables

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API Publ 937 1st edition
Evaluation of Design Criteria for Storage Tanks with Frangible Roof Joints
API Publ 937 1st edition

Evaluation of Design Criteria for Storage Tanks with Frangible Roof Joints

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API Publ 938-A 1st edition
An Experimental Study of Causes and Repair of Cracking of 1¼Cr-½ Mo Steel Equipment
API Publ 938-A 1st edition

An Experimental Study of Causes and Repair of Cracking of 1¼Cr-½ Mo Steel Equipment

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API Publ 938-B 1st edition
Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry
API Publ 938-B 1st edition

Use of 9Cr-1Mo-V (Grade 91) Steel in the Oil Refining Industry

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API TR 938-C 3rd edition
Use of Duplex Stainless Steels in the Oil Refining Industry
API TR 938-C 3rd edition

Use of Duplex Stainless Steels in the Oil Refining Industry

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API Publ 939-A 1st edition
Research Report on Characterization and Monitoring of Cracking in Wet H2S Service
API Publ 939-A 1st edition

Research Report on Characterization and Monitoring of Cracking in Wet H2S Service

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API Publ 939-B 1st edition
Repair and Remediation Strategies for Equipment Operating in Wet H2S Service
API Publ 939-B 1st edition

Repair and Remediation Strategies for Equipment Operating in Wet H2S Service

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API RP 939-C 2nd edition
Guidelines for Avoiding Sulfidation (Sulfidic) Corrosion Failures in Oil Refineries
API RP 939-C 2nd edition

Guidelines for Avoiding Sulfidation (Sulfidic) Corrosion Failures in Oil Refineries

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API TR 939-D 2nd edition
Stress Corrosion Cracking of Carbon Steel in Fuel Grade Ethanol— Review, Experience Survey, Field Monitoring, and Laboratory Testing
API TR 939-D 2nd edition

Stress Corrosion Cracking of Carbon Steel in Fuel Grade Ethanol— Review, Experience Survey, Field Monitoring, and Laboratory Testing

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API Bull 939-E 2nd edition
Identification, Repair, and Mitigation of Cracking of Steel Equipment in Fuel Ethanol Service
API Bull 939-E 2nd edition

Identification, Repair, and Mitigation of Cracking of Steel Equipment in Fuel Ethanol Service

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API RP 941 8th edition
Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants
API RP 941 8th edition

Steels for Hydrogen Service at Elevated Temperatures and Pressures in Petroleum Refineries and Petrochemical Plants

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API TR 941-A 1st edition
The Technical Basis Document for API RP 941
API TR 941-A 1st edition

The Technical Basis Document for API RP 941

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API TR 942-A 1st edition
Materials, Fabrication, and Repair Considerations for Hydrogen Reformer Furnace Outlet Pigtails and Manifolds
API TR 942-A 1st edition

Materials, Fabrication, and Repair Considerations for Hydrogen Reformer Furnace Outlet Pigtails and Manifolds

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API TR 942-B 1st edition
Material, Fabrication, and Repair Considerations for Austenitic Alloys Subject to Embrittlement and Cracking in High Temperature 565 °C to 760 °C (1050 °F to 1400 °F) Refinery Services
API TR 942-B 1st edition

Material, Fabrication, and Repair Considerations for Austenitic Alloys Subject to Embrittlement and Cracking in High Temperature 565 °C to 760 °C (1050 °F to 1400 °F) Refinery Services

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API RP 945 4th edition
Avoiding Environmental Cracking in Amine Units
API RP 945 4th edition

Avoiding Environmental Cracking in Amine Units

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API Publ 959 1st edition
Characterization Study of Temper Embrittlement of Chromium-Molybdenum Steels
API Publ 959 1st edition

Characterization Study of Temper Embrittlement of Chromium-Molybdenum Steels

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API RP 95J 1st edition
Gulf of Mexico Jackup Operations for Hurricane Season
API RP 95J 1st edition

Gulf of Mexico Jackup Operations for Hurricane Season

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API RP 96 1st edition
Deepwater Well Design and Construction
API RP 96 1st edition

Deepwater Well Design and Construction

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API Bull 97 1st edition
Well Construction Interface Document Guidelines
API Bull 97 1st edition

Well Construction Interface Document Guidelines

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API RP 970 2nd edition
Corrosion Control Document Systems
API RP 970 2nd edition

Corrosion Control Document Systems

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