API 5L Grade GRB Piping Spool with Flange for Pre-Fabricated Industrial Project

At Hunan Great Steel Pipe Co., Ltd., we are pleased to present one of our recent project applications — the supply of customised piping spools to an international client.

Product: Piping Spool (Pipe Welded with Flange)
Standard: API 5L
Grade: GRB
Outer Diameter (OD): 18 inches
Wall Thickness (T.K.): SCH40
Quantity: 3,520 tons

Throughout this project, we maintained strict quality control at every stage of production — from raw material selection and pipe manufacturing to flange welding and final assembly. All piping spools were custom‑fabricated and inspected precisely according to the client’s dimensional and welding requirements, ensuring full compliance with API 5L standards and the client’s specifications.

Even for customised products like these, we take the initiative to go beyond routine compliance. We actively engage with our clients to understand their specific installation and operating environments, including temperature ranges, pressure levels, media being transported, and potential mechanical stresses. Based on this understanding, we provide professional recommendations on flange type selection, weld joint design, non‑destructive testing methods, and surface protection measures.

This proactive, solution‑oriented approach helps our customers avoid on‑site fitting issues, reduce leakage risks, and extend service life. Our goal is always to create a win‑win partnership — delivering reliable, high‑quality piping spools while offering value‑added advice that ensures seamless integration into our clients’ systems.

At Hunan Great Steel Pipe Co., Ltd., we are proud to support global industrial projects with precision custom fabrication, rigorous quality assurance, and engineering support tailored to each client’s needs.