ASME SA106 GR.B Refinery Pipeline Tube

ASME SA106 Grade B Refinery Pipeline Tube is a premium carbon steel seamless tube designed specifically for high-temperature and high-pressure service in refinery and petrochemical industries. Manufactured in accordance with the ASME SA106 standard, Grade B tubing offers reliable mechanical properties and excellent thermal resistance, making it ideal for use in refining processes, steam lines, and heat exchangers.

Produced through seamless manufacturing methods such as hot rolling or extrusion, ASME SA106 GR.B tubes provide superior structural integrity by eliminating weld seams. This seamless construction enhances pressure containment, reduces risk of failure, and ensures consistent wall thickness and dimensional accuracy — critical factors for refinery pipeline applications operating under extreme conditions.

The chemical composition of Grade B carbon steel includes carefully controlled amounts of carbon, manganese, phosphorus, sulfur, and trace elements, balancing strength and ductility with heat resistance. This composition enables the tube to withstand thermal cycling, corrosion, and mechanical stress typically encountered in refinery environments.

Mechanically, ASME SA106 Grade B refinery tubes demonstrate high tensile and yield strength, excellent elongation, and resistance to thermal fatigue. These properties make them suitable for transporting hot fluids, steam, and process gases, while maintaining safety and performance under fluctuating pressures and temperatures.

Common applications include:

Refinery pipelines for oil, gas, and chemical transport

Heat exchanger tubing

Superheater and reheater tubes

Boiler tubes and steam lines

Petrochemical process lines

ASME SA106 GR.B seamless tubes are available in a variety of sizes, with outer diameters typically ranging from 1/8 inch to 24 inches and wall thicknesses conforming to standard schedules such as SCH40, SCH80, and custom specifications. Tubes can be supplied in random or fixed lengths based on project needs, with options for plain, beveled, or threaded ends.

Quality assurance measures are comprehensive, including hydrostatic pressure testing, non-destructive inspections (ultrasonic, radiographic), tensile and elongation testing, Charpy impact testing, and chemical analysis to ensure full compliance with ASME standards. Third-party inspection and certification services are also available upon request.

In summary, ASME SA106 Grade B Refinery Pipeline Tube is a robust and dependable choice for critical refinery applications. Its seamless design, excellent mechanical properties, and resistance to high temperature and pressure conditions make it an essential component for safe and efficient refinery pipeline systems.