Greens Bayou Pipe Mill manufactures structural steel pipe in a range of sizes, wall thicknesses, and finishes for mooring dolphin applications. This piping type is manufactured following API 2B, API RP2A & AWS D1.1 requirements, unless otherwise specified, from flat steel progressively rolled and welded into the finished size and shape.
Your mooring dolphin partner
Greens Bayou Pipe Mill is a single-source supplier of large pipe for mooring dolphin construction. Our area of expertise is the immediate turnaround of API 2B compliant carbon steel pipe for demanding industrial use.
With five rolling machines capable of handling plates up to 10 inches thick, we’ve unmatched structural steel piping production capacity. Actual forming capacities depend upon the product grade, diameter, wall thickness, and length.
Benefits of Mooring Dolphins
A mooring dolphin is a permanent marine structure used to secure vessels by rope or another device. Made of structural steel pipe that’s driven into the ocean floor, it extends above the waterline. Benefits include:
- High Strength
- Resists Corrosion
- Long Service Life
- Absorbs Impacts
- Protects Structures
- Deflects Passing Vessel Force
They’re installed when it’s impractical to extend the shoreline of a pier or wharf to accommodate longer vessels. The number of piles needed to create a mooring dolphin varies, but typical applications utilize many dozens of pipes.
Tough applications, quality fabrication
Longitudinal seams are welded using efficient and precise automated submerged-arc welding, or SAW, processes. The sides of plates fed through the rollers curl toward each other, forming a cylinder. Filler material is passed along the edges, on the inside and outside diameters, joining them together.
After assembly, the circumferential weld is performed. We have an extensive catalog of welding procedures to cover many types of material and designs.
With SAW, pressure is not used. A blanket of granular fusible material shields the arc. Here are the benefits of this welding technique:
- High Weld Quality
- High Deposition Rate
- Deep Weld Penetration
- Smooth Finished Weld
- No Spatter
Every order leaves our yard with a comprehensive document package. It includes applicable certified Mill Test Reports, or MTRs, and documents covering other industry- or client-required processes or inspections.
Finished pipe tailored to the client
Obtaining structural steel pipe in the desired condition may require additional processing, which calls for transiting in-process material between service providers. Greens Bayou Pipe Mill eliminates these hassles by offering additional services under one roof.
- Non-Destructive Testing, or NDT
- Post-Weld Heat Treatment
- Load Out
Structural steel, process integrity
An independent inspection agency checks welds for nonconformities. Any relevant indications found are documented by type and location before the pipe goes back to the welding area for repair.
Subsurface and surface NDT methods can be performed per any ASNT recommended practice or AWS, API, ASTM, and ASME standard. Client-supplied NDT procedures are also welcome. Common types of inspections performed include:
- Radiographic Testing, or RT
- Ultrasonic Testing, or UT
- Magnetic Particle Inspection, or MPI
- Liquid Penetrant Inspection, or LPI
Custom mooring dolphin pipe delivery
As a top waterfront pipe products supplier, Greens Bayou Pipe Mill can tailor delivery to customer needs. We work with you to develop the best shipping solution, whether it’s by:
We’re positioned at the convergence of Greens Bayou and the Houston Ship Channel, which connects directly to the Gulf of Mexico. Our crews can load out up to 500 tons of structural steel pipe using a barge-mounted crane.
Trusted Leading mooring dolphin solutions
As a steel pipe production, processing, and supply chain management leader, Greens Bayou Pipe Mill is the perfect partner for marine structural construction projects. A dedicated workforce, state-of-the-art equipment, and extensive capabilities make us the premier source of steel pipe for mooring dolphins.
Give us a call to learn more about large pipe for mooring dolphin construction.