The Steel Supplier for Offshore Application Faces Many Challenges

Ambient hydraulic pressure and bending associated with it are concerns with deepwater pipelines. Pipes need lower diameter to thickness ratios and should be made from higher strength materials for these applications. At Corpac Steel Products, we understand how pipe manufacturing and various coatings can alter stress-strain behavior in offshore pipeline applications. Today's projects are located in ever more remote areas and expose pipe to more extreme conditions than in the past. Can your steel supplier meet these challenges?

Concerns at Different Stages of Manufacture

When steel is manufactured, its chemical composition, cleanness, and surface quality are the primary determinants of its quality. At the plate stage of manufacture, slab reheating, rolling parameter, and cooling parameter affect plate microstructure, mechanical properties, and resistance to corrosion. Formation of pipes must address pipe and weld geometry, weld quality, mechanical properties, and residual stresses on the pipe. Ensure that your supplier understands all aspects of the manufacturing process.

What Today's Market Demands

Today's petroleum projects demand (among other things) steel purity that is up to the challenges of transporting sour gas, high strength steels that demand superior plate rolling and pipe formation, and arctic grade pipe that demands the highest quality longitudinal seam welding. Pipe geometry for deep sea applications must meet tough specifications due to hydraulic pressures and chemical reactions in these environments.

Concerns of Submerged Arc Welded Seams

Mechanical properties and corrosion resistance must meet stringent toughness and hardness specifications, which have to do with welding parameters like consumables and base metals. Misalignment of weld shapes or problems with weld linearity can cause problems in offshore applications. It's critical for project managers to work with suppliers with the engineering expertise to understand exactly what is needed and why it's needed.

Delivery Logistics Effects on Schedule and Budget

Corpac Steel Products understands that having the products that meet specifications is only part of the job. Getting the products to customers quickly, safely, conveniently, and cost-effectively is critical too. A supplier's distribution system can have serious effects on schedules and budgets when there are problems. Choose a supplier with widespread industry experience and the logistics know-how to deliver on promises consistently.