Electric Resistance Welding (ERW)
PTC Liberty Tubulars is a market leader in the production of ERW pipe for downhole casing and tubing applications. ERW pipe is produced by forming hot-rolled steel coils into a cylinder and then welding the strip edges together. We produce or process ERW up to 9.625” outside diameter (OD) in J, L, and P grades with all API threads and several high performance Semi-Premium connections in our two Texas plants.
- 4.5” to 9.625” OD
- Wall thickness 0.125″ to 0.625″
- Industry leading non-destructive testing technology
- In-house UT inspection
- Uniform wall thickness
- Outstanding collapse requirements
ERW Casing Variations
| OD (inches) | Wall Thickness (inches) | Pounds per Foot |
| 4.500” | .250 | 11.60 |
| .290 | 13.50 | |
| .337 | 15.10 | |
| 5.500” | .304 | 17.00 |
| .361 | 20.00 | |
| .415 | 23.00 | |
| 7.000” | .317 | 23.00 |
| .362 | 26.00 | |
| .408 | 29.00 | |
| .453 | 32.00 | |
| 7.625” | .328 | 26.40 |
| .375 | 29.70 | |
| .430 | 33.70 | |
| 8.625” | .264 | 24.00 |
| .352 | 32.00 | |
| 9.625” | .352 | 36.00 |
| .395 | 40.00 | |
| .435 | 43.50 | |
| .472 | 47.00 |
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
Seamless (SMLS)
PTC Liberty Tubulars is a market leader in the processing and finishing of Seamless (SMLS) pipe.
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.
