SA/A106 seamless pipe is one of our most popular products.

We stock a full range of schedules of SA/A106B. Schedules 10 through 160, STD, XS, XXS.
Unscheduled wall thicknesses available up to 4 inches.

ASTM SA/A106 Seamless Steel Pipe Specifications

ASTM SA/A106 pipe (also covered in ASME specifications as SA/A106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures.

Federal Steel Supply is a world leader in the supply of A106 / SA106 pipe and stocks a full range of grades B/C in a size rage of NPS 1/2″ to NPS 36″, with nominal (average) wall thickness as given in ANSI B36.10.

Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

Pipe ordered under this specification shall be suitable for bending, for flanging, for welding, and for similar forming operations. A full range of SA/A106 stock is available in Schedules 10 through 160, STD, XS, XXS. Unscheduled wall thicknesses available up to 4 inches.

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Seamless Carbon Products

Size Range

½” nominal - 36” OD

Wall Thickness

.188" up to .4"

and Thicker Upon Request.


B / C

ASTM SA/A106 Mechanical Properties

PropertiesGrade BGrade C
Tensile Strength, min., psi, (MPa)60,000 (415)70,000 (485)
Yield Strength, min., psi, (MPa)35,000 (240)40,000 (275)

Note: For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.35%.

ASTM SA/A106 Chemical Properties

GradeC, max.MnP, max.S, max.Si, min.Cr, max.Cu, max.Mo, max.Ni, max.V, max.
Grade B0.300.29 - 1.060.0350.0350.100.400.400.150.400.08
Grade C0.350.28 - 1.060.0350.0350.100.400.400.150.400.08

Note: This is summarized information from ASME Specification A106. Please refer to the specific Standard or Specification or contact us for more details.

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