FAQ

ASTM A106 GR B Carbon Steel Pipe

A106 GRADE B PIPE
ASTM A106 grade B Seamless Pressure Pipe (ASME SA106) is used in power plants, boilers, petrochemical plants, oil and gas refineries, and ships where the piping must transport fluids and gases that exhibit high pressures and temperatures.
At American Piping Products, we distribute pipe that meets the latest chemistry standards from ASME.
We stock the full range of ASTM A106 grade B (ASME SA106 grade B):
NPS ?” to 30” diameter
Schedules 10 through 160, STD, XH and XXH
Schedules 20 through XXH
Wall Thickness beyond XXH, including:
- Up to 4” wall in 20” through 24” OD
- Up to 3” wall in 10” through 18” OD
- Up to 2” wall in 4” through 8” OD
Please note that ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is not in agreement with ASME regarding the specifications for grade B seamless pressure pipe. ASTM A106 grade B pipe and ASME SA 106 grade B pipe now have different specification ranges for acceptable proportions of Manganese.

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