SEMI SEAMLESS

OCTG manufactured from Super Duplex and nickel-based corrosion resistant alloy plate
Economically produced in OD sizes 7” through 9-5/8”
110 KSI minimum yield strength
Manufactured in typical OCTG wall and weight
Lengths offered up to 45-feet vs. traditional 13-feet average, requiring fewer connections
Superior uniformity in dimensional tolerances, ovality, wall, yield, tensile, and length compared to OCTG manufactured from the traditional seamless extruded hollow
Hollows are cold worked to provide a product superior to the traditional extruded seamless products
Hollows from defect free plate, on both the ID and OD, are roll formed and welded with re-crystallized weldment. Either an autogenous process or a shielded gas arc process with a filler metal matching the base metal can be used

Substantially tighter dimensional and mechanical tolerances
Enhanced uniform ovality, wall, yield and tensile
Increased uniform length (typical length variance is 4” per joint)
Longer lengths (presently available up to 45-feet)
Rig cost savings (fewer connections required to assemble)
Connections cost savings (fewer connections to purchase)
Reduced leak risk (less connection limit leak potential)
Flexibility in choice of specialty connection from any manufacturer
Offers an alternative source for large OD super duplex and nickel-based alloy OCTG
Immediately increases overall worldwide manufacturing capacity for super duplex and nickel-based alloy OCTG