API Monogram License List

Check out the List of API monogram licenses that are used as seals of approval for high-quality and reliable products. 

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API Product Specification

API Spec 2B Structural Steel Pipe – Steel Pipe
API Spec 2C Offshore Cranes – Offshore Cranes
API Spec 2F Mooring Chain – Flash Welded Chain; Forged Connecting Links
API Spec 2H Carbon Manganese Steel Plate for Offshore Platform Tubular Joints – Grade 42 Steel Plate; Grade 50 Steel Plate
API Spec 2MT1 As-Rolled Carbon Manganese Steel Plate with Improved Toughness for Offshore Structures – Steel Plate, Grade 2MT1
API Spec 2MT2 Rolled Shapes with Improved Notch Toughness – Steel Rolled Shapes
API Spec 2W Steel Plates for Offshore Structures Produced by Thermo-Mechanical Control Processing (TMCP) – Grade 50 Steel Plate; Grade 60 Steel Plate; Grade 70 Steel Plate; Grade 80 Steel Plate
API Spec 2Y Steel Plates, Quenched-and-Tempered, for Offshore Structures – Grade 50 Steel Plate; Grade 60 Steel Plate
API Spec 4F Drilling and Well Servicing Structures – Derricks; Masts; Crown Block Assemblies; Substructures; at PSL 1 and 2
API Spec 5B Threading, Gauging, and Thread Inspection of Casing, Tubing and Line Pipe Threads – Thread Gages
API Spec 5CRA Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock – Manufacturer of Casing, Tubing or Coupling Stock at PSL 1; Manufacturer of Casing, Tubing or Coupling Stock at PSL 2, at Groups 1, 2, 3, 4
API Spec 5CT
  • Casing and Tubing – Manufacturer of Casing or Tubing Plain End; Manufacturer of Casing or Tubing Threaded and Coupled; Manufacturer of Casing or Tubing Pup Joints;
  • Manufacturer of Casing or Tubing Couplings; Manufacturer of Accessories; Processor of Casing or Tubing Plain End; Processor of Casing or Tubing Threaded and Coupled; Threader at Groups 1, 2, 3 and 4.
API Spec 5DP Drill Pipe Drill Pipe Body; Tool Joints; Drill Pipe (Assembly)
API Spec 5L Line Pipe
  • Manufacturer of Line Pipe – Plain End at PSL 1; Manufacturer of Line Pipe – Plain End at PSL 2; Manufacturer of Line Pipe – Threaded and Coupled; Manufacturer of Line Pipe Couplings;
  • Processor of Line Pipe – Plain End at PSL 1; Processor of Line Pipe – Plain End at PSL 2; Processor of Line Pipe – Threaded and Coupled; Threader.
API Spec 5LC CRA Line Pipe Manufacturer of Alloy Pipe; Processor of Alloy Pipe
API Spec 5LCP Coiled Line Pipe Coiled Line Pipe
API Spec 5LD CRA Clad or Lined Steel Pipe Manufacturer of Clad Steel Pipe; Manufacturer of Lined Steel Pipe; Processor of Clad Steel Pipe; Processor of Lined Steel Pipe.
API Spec 5ST Coiled Tubing – Manufacturer of Coiled Tubing
API Spec 6A Wellhead and Christmas Tree Equipment – Manufacture of Casing and Tubing Heads; Cross-Over Connectors; Tubing Head Adapters; Top Connectors; Tees and Crosses; Fluid-Sampling Devices; Adapter and Spacer Spools; Casing and Tubing Hangers; Valves; Chokes; Surface and Underwater Safety Valves; Surface and Underwater Safety Valve Actuators; Back Pressure Valves; Flanged Connectors; Threaded Connectors; Other End Connectors; Bullplugs; Valve Removal Plugs; Actuators; Ring Joint Gaskets at PSL 1 through 4
API Spec 6AV1 Verification Test of Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Use – Testing Agency
API Spec 6D Pipeline Valves (Steel Gate, Plug, Ball, and Check Valves) – Gate Valves; Plug Valves; Ball Valves; Check Valves
API Spec 6DSS Subsea Pipeline Valves – Subsea Gate Valves; Subsea Plug Valves; Subsea Ball Valves; Subsea Check Valves
API Spec 7-1 Rotary Drilling Equipment – Kelly Valves; Kellys; Drill Stem Subs; Drill Collars; Heavy Weight Drill Pipe; Roller Bits; Blade Drag Bits; Diamond Bits; PDC Bits; Threading for Rotary Shouldered Connections; Stabilizers
API Spec 7-2 Threading and Gauging of Rotary Shouldered Thread Connections – Rotary Shouldered Connection Gauges
API Spec 7F Oil Field Chain and Sprockets – Roller Chain
API Spec 7K Drilling Equipment – Rotary Tables, Kelly Bushings, Master Bushings, Rotary Slips, Rotary Hoses, Piston Mud Pump Components, Drawworks Components, Spiders Not Capable of Use as Elevators, Manual Tongs, Safety Clamps Not used as Hoisting Devices, Power Tongs, Pressure Relieving Devices for High-Pressure Drilling Fluid Circulating Systems, Snub-Lines for Manual and Power Tongs
API Spec 7NRV Drill String Non-return Valves – Drill String Non Return Valves, Non Return Valve Subs, Non Return Valve Landing Nipples, Non Return Valve Equalizing Heads
API Spec 8C Drilling and Production Hoisting Equipment – Hoisting Sheaves, Traveling Blocks and Hook Blocks; Block-to-Hook Adapters, Connectors and Link Adapters, Drilling Hooks, Tubing and Sucker Rod Hooks; Elevator Links, Casing, Tubing and Drill Pipe Elevators, Sucker Rod Elevators; Rotary Swivel Bail Adapters, Rotary Swivels; Power Swivels, Power Subs; Spiders (if capable of being used as elevators), Wireline Anchors; Drill-String Motion Compensators; Kelly Spinners (if capable of being used as hoisting equipment); Pressure Vessels and Piping Mounted onto Hoisting Equipment; Safety Clamps (if capable of being used as hoisting equipment); Guide Dollies for Traveling Equipment at PSL 1 and 2
API Spec 9A Wire Rope – Bright or Drawn-Galvanized Wire Rope; Mooring Wire Rope; Torpedo Lines; Well-Measuring Wire; Well-Measuring Strand; Wire Guy Strand; Structural Rope and Strand
API Spec 10A Well Cements – API Well Cement Class A, Type [O]; Class B, Type [MSR, HSR]; Class C, Type [O, MSR, HSR]; Class D, Type [MSR, HSR]; Class G, Type [MSR, HSR]; Class H, Type [MSR, HSR]
API Spec 10D Bow-Spring Casing Centralizers – Casing Centralizers
API Spec 11AX Subsurface Sucker Rods, Pumps and Fittings – Pump and Pump Parts; Pump Parts without Tubing or Sucker Rod Threads; Seating Cups
API Spec 11B Sucker Rods – Steel Sucker Rods; FRP Sucker Rods; Couplings, Subcouplings and Polished Rod Connections; Polished Rods; Polished Rod Clamps; Stuffing Box and Pumping Tees; Sinker Bars; Threads; Thread Gages
API Spec 11D1 Downhole Equipment – Packers; Bridge Plugs
API Spec 11E Pumping Units – Pumping Unit Structure; Pumping Unit Gear Reducer
API Spec 12B Bolted Tanks for Storage of Production Liquids – Storage Tanks
API Spec 12D Field Welded Tanks for Storage of Production Liquids – Storage Tanks
API Spec 12F Shop Welded Tanks for Storage and Production Liquids – Storage Tanks
API Spec 12J Oil and Gas Separators – Separators
API Spec 12K Indirect Type Oilfield Heaters – Heaters; Shells; Coils
API Spec 12L Vertical and Horizontal Emulsion Treaters – Treaters
API Spec 12P Fiberglass Reinforced Plastic Tanks – FRP Tanks
API Spec 13A Oil-Well Drilling-Fluid Materials – Barite; Barite 4,1 Hematite; Bentonite; Nontreated Bentonite; Attapulgite; Sepiolite; CMC-LVT; CMC-HVT; Starch; OCMA Grade Bentonite; PAC-LV; PAC-HV; Drilling-Grade Xanthan Gum
API Spec 14A Subsurface Safety Valve Equipment – Subsurface Safety Valves; Testing Agency
API Spec 14L Lock Mandrels and Landing Nipples – Lock Mandrels; Landing Nipples
API Spec 15HR High-Pressure Fiberglass Line Pipe – Line Pipe; Couplings; Fittings; Flanges; Reducers and Adapters
API Spec 15LE Polyethylene Line Pipe (PE) – (PE) Line Pipe
API Spec 15LR Low-Pressure Fiberglass Line Pipe – CC Line Pipe; FW Line Pipe
API Spec 15S Spoolable Reinforced Plastic Line Pipe – Non-metallic Reinforced Pipe, End Fittings, Coupling Fittings
API Spec 16A Drill Through Equipment – Ram BOP; Ram Blocks, Packers, and/or Top Seals; Annular BOP; Annular Packing Units; Hydraulic Connectors; Drilling Spools; Adapters; Loose Connections; Clamps
API Spec 16C Choke and Kill Systems – Actuated Valve Control Lines; Articulated Choke & Kill Line; Drilling Choke Actuators; Drilling Choke Control Line exclusive of BOP Control Lines and Subsurface Safety Valve Control Lines; Drilling Choke Controls; Drilling Chokes; Flexible Choke and Kill Lines; Rigid Choke and Kill Lines; Swivel Joints; Choke and Kill Manifold Assemblies
API Spec 16D Control Systems for Drilling Well Control Equipment – Control Systems for Surface Mounted BOP Stacks; Hydraulic Control Systems for Subsea BOP Stacks; Electro-Hydraulic/Multiplex Control Systems for Subsea BOP Stacks; Diverter Control Systems; Emergency Backup BOP Control Systems; Auxiliary Equipment Control Systems and Interfaces
API Spec 16F Marine Drilling Riser Equipment
API Spec 16RCD Drill through Equipment (Rotating Control Devices)
API Spec 16R Marine Drilling Riser Couplings – Marine Drilling Riser Couplings
API Spec 17D Subsea Wellhead and Christmas Tree Equipment – Subsea Tree Equipment, Subsea Wellhead Equipment, Mudline Suspension System Equipment, Other Equipment at PSL 2, 3, 3G
API Spec 17E Subsea Production Control Umbilicals – Hose Umbilicals; Electrical Umbilicals; Electro-Hydraulic Umbilicals
API Spec 17F Subsea Production Control Systems – Subsea Production Control Systems
API Spec 17J Unbonded Flexible Pipe – Unbonded Flexible Pipe
API Spec 17K Bonded Flexible Pipe – Bonded Flexible Pipe
API Spec 19G1 Side-pocket Mandrels
API Spec 19G2 Flow-control Devices for Side-pocket Mandrels
API Spec 19G3 Running Tools, Pulling Tools, and Kick-over Tools and Latches for Side-Pocket Mandrels
API Spec 19V Subsurface Barrier Valves – Type A, B, C, AA, BB and CC Barrier Valves; Barrier Valve Tools
API Spec 20A Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings
API Spec 20B Open Die Shaped Forgings – Groups 1, 2, 3, 4 and 5
API Spec 20C Closed Die Forgings
API Spec 20E Alloy and Carbon Steel Bolting
API Spec 20F Corrosion Resistant Bolting for Use in the Petroleum and Natural Gas Industries – Machined Studs; Machined Bolts, Screws, and Nuts; Cold Formed Bolts, Screws, and Nuts; Hot Formed Bolts and Screws; Roll Threaded Studs, Bolts, and Screws; Hot Formed Nuts
API Standard 547 General-Purpose Form-Wound Squirrel Cage Induction Motors – 250 Horsepower and Larger
API Standard 594 Check Valves
API Standard 599 Metal Plug Valves
API Standard 600 Bolted Bonnet Steel Gate Valves – Bolted Bonnet Steel Gate Valves
API Standard 602 Compact Steel Gate Valves, Globe Valves and Check Valves
API Standard 603 Corrosion-Resistant Bolted Bonnet Gate Valves
API Standard 608 Metal Ball Valves
API Standard 609 Butterfly Valves
API Standard 650 Welded Tanks for Oil Storage – Fabricated Steel Plates and Shop Built Tanks

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