The Difference Between API 5L Gr.B And A106 Gr.B Sch 40?

　　API 5L GR.B SCH 40 Pipes come from API Spec 5L Specification for Line Pipe with the application of gas, water and oil transportation. Standard Line Pipe has grade designation A and B. API 5L Grade b pipe can be two of API 5L product service level (PSL), that’s is API 5L Gr.B PSL1 and API 5L Gr. B PSL2.

　　ASTM A106(S/A 106) pipe is the standard specification for seamless carbon steel pipe for high-temperature and pressure service. ASTM A106 pipe including three grades: ASTM A106 Grade A, ASTM A106 Grade B, ASTM A106 Grade C. ASTM A106 grade B Pipe 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. API 5L Gr.b and A106 Gr.b are both carbon steel that is used in oil and gas transportation. Both of them can be welded, but the most of A106 Gr. B pipe is seamless.
Here are some tiny details about A106 grade B and API 5L Gr. B PSL 1 in chemical and physical property:

Chemical Requirement

Tensile Requirement

The two kinds of pipe specifications overlap but vary a little. A Pipe may or may not meet both API 5L Gr.b and A106 Gr.b. Equivalent standards of them listed below:

　　When connected API 5L Gr.B SCH 40 Gr.b or A106 Gr.B SCH 40 steel pipe, some fitting and flanges may be intersubstituted and interchangeable. If you are you also Looking for Carbon Steel Pipe Fittings ASTM A234 WPB, ASTM A105 carbon steel pipe fittings such as pipe fittings, flanges, fasteners and gaskets.Shengtian Group  is a good vendor, we stock and supply a full range of API 5L Grade B Seamless Pipes and Welded Pipes, A106 Gr. B seamless pipes with plenty quantity and cheap price, welcome to call fro us.