2" 3" 4 Inch Domestic Seamless Carbon Steel Pipe Api ASTM A106 Grade B

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

ASTM A106 Grade B pipe is equivalent to ASTM A53 Grade B and API 5L B on chemical position and mechanical properties, in general use carbon steel and yiled strength minimum 240 MPa, tensile strength 415 Mpa.

MECHANICAL PROPERTIES

CHEMICAL COMPOSITION

Testing Requirements for seamless A106 carbon steel pipe

(1)Hydrostatic Testing:

Inspection test pressures produce a stress in the pipe wall equal to 60% of specified minimum yield strength (SMYS) at room temperature. Maximum pressures are not to exceed 2,500 psi for NPS 3 and under, and 2,800 psi for the larger sizes. Pressure is maintained for no less than 5 seconds.
(2)Mechanical Tests:
Tensile Test: Either transverse or longitudinal are acceptable for NPS 8 and larger
Tensile tests smaller than NPS 8: Longitudinal testing only
Flattening Test: NPS 2 and larger
Bending Test (cold): NPS 2 and under

A106 PIPE COATING TYPRES FOR CARBON STEEL PIPE AGAINST CORROSION EVIRONMENTS

In order to increase the resistance of steel pipe in corrosion environment, Octal offers different types of coating systems to protect against from the corrosive and abrasion break.

• 3PE coated, 3 layer Polyethylene coating
• FBE coated, Fusion bonded epoxy coating
• Zinc coated, Hot dipped galvanized steel pipe, cold electric galvanized
• Solid, CRA, Clad and lined pipes, Cladding and lining alloy steel material on the carbon steel material

CARBON STEEL PIPE STANDARD AND GRADES(SEAMLESS AND WELDED)

• ASTM A106 Gr. B in Seamless (Differences between ASTM A106 and A53 pipe)
• ASTM A53 Gr. A, B in Seamless, Welded ERW, and Zinc coated, hot-dipped galvanized steel pipe
• ASTM A179 Gr. C in Seamless (For seamless cold drawn low carbon steel heat-exchanger and condenser tubes)
• ASTM A192 (For seamless carbon steel boiler tubes for high-pressure service)
• ASTM A252 (For welded and seamless steel pipe piles)
• ASTM A333 GR. 1, 2, 3, 4, 5, 6 (For seamless and welded steel pipe for low-temperature service and other applications with required notch toughness)
• ASTM A134 and ASTM A135 (For electric resistance welded ERW steel pipes)
• API 5L Pipe, ISO 3183 / API 5L Gr. A, B, X42, X46, X52, X56, X60, X65, X70, X80 in seamless and welded (LSAW, SSAW, ERW) steel pipe, for petroleum and natural gas industries, steel pipe for pipeline transportation systems.
• DIN 2440 seamless and welded steel pipes applies to medium-weight tubes suitable for screwing. (DIN2444 Zinc coated steel tubes, for hot galvanizing)
• CSZ Z245 Seamless and ERW welded pipe (low-frequency electric welded pipe excluded), SAW steel pipe that intended for oil and gas pipeline systems.
• NBR 8261 Cold-Drawn, Cold-form, welded steel pipe, in circular cross-section, square or rectangular, applied to structural purposes.
• AWWA C-200 for steel water pipe

More standards material available in case special requirement