High-Temperature Seamless Pipe API 5L ASTM A106 Gr.B

Description

High-Temperature Seamless Pipe is engineered to maintain structural integrity, resist creep, and withstand oxidation in extreme heat. Manufactured without a welded seam, it provides uniform strength and reliable performance for critical applications in power generation, refineries, and chemical plants.

High-Temperature Seamless Pipe Chemical Composition

Sources American Standard A106 / A106M Table 1 Chemical Requirements

High-Temperature Seamless Pipe Mechanical Properties

Sources American Standard A106 / A106M Table 2 Tensile Requirements

High-Temperature Seamless Pipe Application

• Power generation (boiler tubes, superheaters, reheaters, steam lines)
• Refinery process piping (high-temperature hydrocarbon service)
• Chemical and petrochemical plants
• Heat exchangers and high-pressure vessels
• High-temperature steam and thermal systems

High-Temperature Seamless Pipe Manufacturing Process

The process begins with solid steel rounds, or billets, being cut to a specified length and sent through a walking-beam reheat furnace, where temperatures reach nearly 2,300°F. After exiting the reheat furnace, the preheated rounds are turned into a tube shell in the rotary piercing mill as the billets are cross-rolled between two barrel-shaped rolls at a high speed.

The seamless shells enter mandrel mill, where they are rolled over a retained mandrel to provide the needed OD size and wall thickness for the next process. The process is carefully monitored using a state-of-the-art hot-wall measuring system. The shells are then reheated for final forming in a 24-stand stretch-reducing mill, where outside diameters are formed to customers’ exacting specifications. Wall thickness is again verified using a hot-wall measuring system. After being rotated and advanced on the walking-beam cooling bed, the pipes are batch cut and transferred to an in-process storage area, where they are handled by computer-controlled gantry cranes.

High-Temperature Seamless Pipe Packing & Loading

a. 1/2"-2"Plain end with black oil paint, caps both ends, bundles with loading belt.

b. 2"-4"Beveled end with black oil paint, caps both ends, bundles with loading belt.

c. 10"-20"Beveled end with black oil paint, caps both ends, loose packed in to container.

Beveled End Pipe Marking Black Painting

Pipe end caps Protective Final inspection Bundles Packing

High-Pressure Seamless Pipe Shipping By Container