ASTM A106 seamless pipes (also known as ASME SA106 pipes) are commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers and ships. These pipes must carry fluids that exhibit higher temperature and pressure levels And gas.ASTM A106 pipe includes three grades, A106 grade a, A106 grade b, and A106 grade c.
A106 Carbon Steel Pipe Sizes
NPS 1/8″ to NPS 48"
Wall thickness: Schedules 10 through 160, STD, XS, XXS.
*Commonly requested unscheduled walls up to 4" and certified minimum wall items
ASTM A106 Gr B seamless pipes (also known as ASME SA106 GR B pipes) is a seamless carbon steel nominal pipe for high temperature use.The chemical composition of A 106Gr.B is as follows:
1. C≤0.25, 2. Mn=0.27-0.93, 3. P≤0.035, 4. S≤0.035, 5. Si≤0.1, 6. Cr≤0.4, 7. Cu≤0.4, 8. Mechanical properties: ób≥415／MPa , ós≥240／MPa.
ASTM A106 Gr C seamless pipes (also known as ASME SA106 GR C pipes) is a carbon-manganese steel pipe for high-temperature large-diameter boilers and superheaters. Its chemical composition is simple and similar to 20G carbon steel, but its carbon and manganese content is higher, so its yield strength is about 12% higher than that of 20G, and its plasticity and toughness are not bad. The steel has a simple production process and good cold and hot workability. Using it to replace 20G headers (economizer, water wall, low-temperature superheater and reheater header) can reduce the wall thickness by about 10%, which can save material costs, reduce welding workload, and improve headers The stress difference at start-up.