Seamless Pipe 508mm Diameter

Seamless Pipe 508mm Diameter

A106 PIPE SPECIFICATIONS A/SA106 NPS 1/4″- 30″ Schedules 10 through 160, STD, XH and XXH ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) covers seamless carbon steel nominal wall pipe for high-temperature service. Suitable for bending, flanging and similar forming operations....

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A106 PIPE SPECIFICATIONS

A/SA106 NPS 1/4″- 30″ Schedules 10 through 160, STD, XH and XXH

ASTM A106 seamless pressure pipe (also known as ASME SA106 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.

ASTM A106 seamless pressure pipe is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.

Production 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.

Chemical Requirements



Grade AGrade BGrade C
Carbon max. %0.250.300.35
*Manganese %0.27 to 0.93*0.29 to 1.060.29 to 1.06
Phosphorous, max. %0.0350.0350.035
Sulfur, max. %0.0350.0350.035
Silicon, min.%0.100.100.10
Chrome, max. %0.400.400.40
Copper, max. %0.400.400.40
Molybdenum, max. %0.150.150.15
Nickel, max. %0.400.400.40
Vanadium, max.%0.080.080.08

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.

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.

Permissible Variations in Outside Diameter:

Outside Diameter at any point shall not vary from standard specified more than:

My company can supply ASTM A106 Grades B and C seamless pipe as follow:

NPS ¼” to 30” diameter

Schedules 10 through 160, STD, XS, XXS

Length: SRL, DRL, to 20m






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