A106 Steel Pipe

ASTM A106 seamless steel pipe covers seamless carbon steel nominal wall pipe for high-temperature service, suitable for bending, flanging and similar forming operations. NPS 1-1/2 and under may be either hot finished or cold drawn. NPS 2 and larger shall be hot finished unless otherwise specified. Surface finish standards are outlined in the specification.

A106 pipe is always produced by the seamless method and can be bent, coiled and flanged and is intended for use in high temperature applications, Pressure systems, Mechanical components, Structural applications, Spreader bars.

Permissible Variations in Dimension

Wall thickness: The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Weights per foot: The weight of any individual length shall not vary more than 10% over and 3.5% under that specified. NOTE – NPS 4 and smaller are weighed in lots. Larger sizes are weighted by individual length.

Outside diameter: Shall not vary from standard specified below at any point.

Lengths of A106 seamless carbon steel pipe

Single random – 16’ – 22’ (5% may be 12’ – 16’)

Double random – Minimum length is 22’. Minimum average is 35’ (5% may be between 16’ – 22’)

ASTM A106/ASME SA106 is the standard specification for seamless carbon steel pipe applied for high temperature services.ASTM A106/ASME SA106 is the standard specification for seamless carbon steel pipe applied for high temperature services.