4 Flush Joint Casing
API Casing Engineering Data Table Sizes 4.500 - 5.000. Fluids Engineering Data. API Casing Data Table Sizes 4.500 - 5.000. Specification 5C3 of the American Petroleum Institute standardizes 14 casing sizes from 4.5 inches (11.43 cm) to 20 inches (50.80 cm) outside diameter ('OD'). Available from ROSCHEN for DCDMA specified J-Series or W-Design Drill Rod, API-Series Drill Pipe & W-Design or T-Series Flush Joint Casing. When ordering match your thread at the surface, with either a “Pin-Up” or “Pin-Down” application and the Bit or Hammer thread at the bottom of the bore hole. Atlantic Screen is a leading manufacturer of a wide variety of Flush Joint Casing. Located in Milton, Delaware, the company manufactures perforated and slotted pipes in vertical, horizontal, and custom patterns. Trident Steel offers OCTG casing from domestic and international mills for hydrocarbon (oil and gas) extraction. Our casing is available in a variety of grades, including API J55, HCL80, HCP110 and more. Serving as the structural retainer for the walls of a drilled hole, Trident Steel offers a range of casing sizes so that customers can select the exact product for their needs. Flush Joint Casing Tight clearance downhole requires a connection strong enough to do the job without a coupling. Inter-Mountain Pipe Co. Has sixteen years of experience in helping our customers solve a variety of such problems in some very hostile downhole environments.
With over 4,000,000 feet of successfully installed, Permalok® casing pipe is the proven leader for trenchless application of steel pipe. Our patented mechanical press fit interlocking connections join pipe sections quicker than any other system in the field.

Permalok® Steel Casing Pipe excels in trenchless jacking construction applications including microtunneling and pipe jacking, auger boring, pipe ramming, and others. Our precision machined joint reduces field time by eliminating butt-weld joints, resulting is a shortened tunneling duration and reduced field costs. Permalok offers the strength and durability of steel piping with a variety of coating options.

With over 4,000,000 feet of pipe successfully installed in the past 25 years, Permalok® stands as the product of choice for trenchless contractors and engineers on their most challenging and significant projects.
Permalok® steel casing pipe dramatically increases field installation efficiency in trenchless projects. Our engineered systems are available in both rolled and sprialweld construction and utilize a proprietary interlocking joint system that connects pipe quickly and eliminates field butt-welding.
4 Inch Flush Joint Casing
Delivered to your jobsite with an integrated interlocking joint, Permalok® steel casing pipe eliminates time-intensive field butt welds in trenchless pipe installation projects. The precision-machined interface is flush with the interior and exterior surfaces of the pipe for quick alignment and connection. Combined with the use of a silicone sealant, the Permalok joint is leak resistant under the most challenging conditions.
Selecting Permalok® casing pipe over field-welded pipe provides an advantage you can take to the bank. Our proprietary airtight joints seal within minutes, compared to hours reserved for joint welding. The below examples demonstrate real savings in time and money in trenchless installations.
Request a Quote
Flush Joint Connection
Need a Permalok quote? Use our easy-to-fill-out form to connect with our sales team.

