High Temperature Seamless Pipe ASTM A106 Carbon Steel

Description

High-Temperature Seamless Pipe is manufactured to specialized standards for service in extreme heat. Carbon steel grades per ASTM A106 are suitable for temperatures up to 427°C (800°F), while chrome-moly alloy grades per ASTM A335 extend service to 750°C (1,380°F) , providing essential creep resistance and oxidation protection required for power generation, refining, and high-temperature chemical processes.

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 (boilers, superheaters, steam lines)
• Refinery and petrochemical process piping
• Heat exchangers and high-pressure vessels
• High-temperature thermal systems
• Sour gas (H₂S) service

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 Temperature Seamless Pipe By Container