ASTM A106 Carbon Steel Pipe For High Temperature

ASTM A106 / ASME SA106 pipes are seamless carbon steel pipes used for high tempertaure applications (up to 750 degrees F). These pipes are widely used in the oil & gas, petrochemical, power generation and ship-building industries (examples: refineries, downstream plants, vessels. boilers and towers). A106 pipes are particulary suited whenever the trasported fluid has either high temperature or high pressure (or both combined). 

ASTM A106 / SA106 pipes are available in size range from 1/2 to 28 inches, and in pipe schedules from 10 to 160. These pipes are supplied either in single random lenght (17-24') or double random lenght (36 -44').

In terms of material grades, A106 pipes are manufactured in grade A, B and C. NPS 1-1/2? and below are available in the hot finished or by cold drawn type. Pipes of NPS 2 inch and above are generally are hot rolled manufatured. A106 pipes are produced out of killed steel. 

Hdrostatic Test of A106 pipes: 

The hydrotest shall apply a pressure equal to 60% of the minimum yield strenght for at least 5 seconds at atmospheric conditions. The maximum pressure shall not exceed 2500 psi for pipes up to 3 inches, and 2800 for larger sizes. If additional, non standard, tests are executed, the pipe shall bear an "S" mark on each lenght or pipe bundle.

Pipe marking:Each lenght of pipe (or bundle for smaller diameters) shall have the following markings applied:

Manufacturer name

Material grade(ASTM A106 A / B / C )

Diameter and ANSI schedule (from 10 to 160 and XXS)

Pipe lenght

Heat number

Hydrostatic test pressure or NDE

Weight / foot

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