API COUPLINGS
As a leading manufacturer and supplier to the petroleum industry, Lincoln Manufacturing has delivered the products and services that demanding oil and gas operations need most in order to stay productive, efficient, and ultimately competitive – for over 30 years.
LTC – Long Threaded Connection
STC – Short Threaded Connection
BTC – Buttress Threaded Connection
Our precision couplings are manufactured to half specification standards as published and in accordance with API 5CT and its most recent edition. Achieving this standard in manufacturing assures the user of a true fit coupling for every coupling make up, minimizes material stack up issues.
The material used is milled as domestic seamless, manufactured to the highest standards of API. We ensure all testing and material certifications are conforming to industry standards and customer defined requirements and control of specialty processes:
Mechanical Test Including Tensile Strength
Impact Test
Chemical Properties Control
Sulfide Stress Cracking Test (for Material Grades in C90 or T95)
Size Tolerances, Od, Wall Thickness, Length and Straightness
Threads Control, Threads Quantity Per Inch, Threads Angle
Heat Treating
Material Certification
Product Specification Level (Psl-2 or Psl-3)
Services
OUR SERVICES INCLUDE:
Full length threading
Coupling buck on and torque
Threading repair
Swedge and up-setting pipe
Stress Relief
Welding
Storage before and after manufacturing
Rail access inbound and outbound
Access to warehouse in most major fields
NDT (Non-Destructive Testing) Wet Mag, UT, EMI
Customized pipe tally and identification
Real-time, accurate, inventory status.
