Seamless (SMLS)

PTC Liberty Tubulars is a market leader in the processing and finishing of Seamless (SMLS) pipe.  SMLS pipe is made by heating a solid steel billet, piercing it with a mandrel to form a tube, and then stretching or rolling it to the desired length, diameter and wall thickness. We finish SMLS up to 7.625” outside diameter (OD), and provide threading up to 13.375” OD, with API and semi-premium connections available in our 300,000 square foot Houston, Texas pipe processing center.

  • 4.5” to 13.375” OD
  • Grades J55 to Q125
  • Wall thickness 0.125″ to 0.625″
  • Industry leading non- destructive test technology
  • In-house UT inspection
  • Meet high collapse requirements
Seamless Casing Variations
OD (inches) Wall Thickness (inches) Pounds per Foot Seamless Casing Variations (Includes Heat Treat, Hydro Test and Full Body Ultrasonic Testing Including SEA) Threading Only
4.500” .250 11.60 X X
.290 13.50 X X
.337 15.10 X X
5.500” .304 17.00 X X
.361 20.00 X X
.415 23.00 X X
7.000” .317 23.00 X X
.362 26.00 X X
.408 29.00 X X
.453 32.00 X X
7.625” .328 26.40 X X
.375 29.70 X X
.430 33.70 X X
8.625” .264 24.00   X
.352 32.00   X
9.625” .352 36.00   X
.395 40.00   X
.435 43.50   X
.472 47.00   X
10.750” .279 32.75   X
.350 40.50   X
.400 45.50   X
.450 51.00   X
.495 55.50   X
13.375” .330 48.00   X
.380 54.50   X
.430 61.00   X
.480 68.00   X
.514 72.00   x

The following grades and connections are available for all of our OD and weight options.

End Finish
J55

PE
LC
BC
SEMI-PREM

L80

PE
LC
BC
SEMI-PREM

N80

PE
LC
BC
SEMI-PREM

SB80

PE
LC
BC
SEMI-PREM

SB85

PE
LC
BC
SEMI-PREM

P110

PE
LC
BC
SEMI-PREM

HCL80

PE
LC
BC
SEMI-PREM

HCP110

PE
LC
BC
SEMI-PREM

CYP110

PE
LC
BC
SEMI-PREM

ICYP110

PE
LC
BC
SEMI-PREM

Electric Resistance Welding (ERW)

PTC Liberty Tubulars is a market leader in the production of ERW pipe for downhole casing and tubing applications.

Processing and Finishing

In addition to being a turnkey supplier of OCTG, PTC Liberty Tubulars is a market leader in the processing and finishing of casing.