Carbon Steel Pipes

A106 PIPE SPECIFICATIONS

A/SA106

NPS 1/4"- 30"Schedules 10 through 160, STD, XH and XXH

*Total of Cr, Cu, Mo, Ni, and V shall not exceed 1%

Permissible Variations in Wall Thickness

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

Killed steel, with primary melting process being open-hearth, basic-oxygen, or electric-furnace, possibly combined with separate degassing or refining.

Steel cast in ingots or strand cast is permissible.

Hot-finished pipe need not be heat treated.

Cold-drawn pipe shall be heat treated after the final cold draw pass.

Permissible Variations in Weights per Foot

Weight of any length shall not vary more than 10% over and 3.5% under that specified. NOTE -- NPS 4 and smaller -- weighed in lots. Larger sizes shall be weighed separately by length.

Mechanical Tests Specified

Tensile Test -- NPS 8 and larger -- either transverse or longitudinal acceptable Smaller than NPS 8 -- weighed in lots. Larger sizes -- by length. Flattening Test -- NPS 2-1/2 and larger. Bending Test (Cold) -- NPS 2 and under.

Lengths required shall be specified on order. No "jointers" permitted unless otherwise specified. If no definite lengths required, following practice applies: Single Random -- 17' ~ 24' lengths Double Random -- 36' ~ 44' lengths

Referenced Documents

ASTM A 530/A 530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe

ASTM E 213 Practice for Ultrasonic Examination of Metal Pipe and Tubing

ASTM E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation

ASTM E 381 Method of Macroetch testing Steel Bars, Billets, Blooms, and Forgings

ASTM E 570 Practice for Flux Leakage Examination of Ferromagnetic Steel Tubular Products

ASME B26.10M Welded and Seamless Wrought Steel Pipe

General Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately: