ASTM A106 Seamless Carbon Steel Pipe


ASTM A106 Seamless Carbon Steel Pipe

Seamless Carbon Steel Pipe 2

Size:ranging from 1/2 to 28 inches
Grades:ASTM A106 grade A, A106 B and A106 C
Length:single random lenght (17-24′) or double random lenght (36 -44′)
Application:used in the oil & gas, petrochemical, power generation and ship-building industries .

 A106 Carbon Steel Pipe For High Temperature

ASTM A106 / ASME SA106 Seamless Carbon Steel Pipe 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 particularly suited whenever the transported 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 Seamless Carbon Steel 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. The chemical composition and Machanical Property of the three grades of A106 is shown in the following table:

Chemical composition:

Chemical composition, %
A106 Grade A0.250.27-0.930.0350.0350.100.400.400.150.400.08
A106 Grade B0.300.29-1.060.0350.0350.100.400.400.150.400.08
A106 Grade C0.350.29-1.060.0350.0350.100.400.400.150.400.08

Machanical Property:

Grade AGrade BGrade C
Tensile Strength, min., psi48,00060,00070,000
Yield Strength, min., psi30,00035,00040,000

Hydrostatic Test of A106 Seamless Carbon Steel pipes:

The hydrotest shall apply a pressure equal to 60% of the minimum yield strength 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.


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