The maximum allowable pressure rating of API 5L Gr X52 pipe is 2281 psi. This value is calculated based on the pipe size, wall thickness and material properties. Specifically, when the pipe diameter is 10 inches (273.1 mm) and the wall thickness is 0.562 inches (14.3 mm), the formula P=2St/D is used, where P is the pressure the pipe can withstand, S is the yield strength of the pipe material, t is the pipe wall thickness, and D is the pipe diameter. Substituting the yield strength and size data of X52 line pipe for calculation, the pressure that X52 line pipe can withstand is approximately 2281 psi (15.7 MPa) .
Calculation method
Formula: P = 2St/D
Parameters:
P: Pipeline pressure
S: Yield strength of pipeline material (yield strength of X52 line pipe is 359 MPa)
t: Pipe wall thickness (e.g. 0.562 inches or 14.3 mm)
D: Pipe diameter (e.g. 10 inches or 273.1 mm)
X52 line pipe is a high-strength steel pipe commonly used in pipeline transportation systems such as oil, natural gas and water. It has excellent mechanical properties and corrosion resistance, can withstand large pressure and tension, and has good toughness and can adapt to complex construction environments. API 5L standard specifies the mechanical properties requirements that pipelines of different steel grades should meet, including the specific numerical ranges of yield strength and tensile strength. For example, the yield strength of X52 line pipe is 359 MPa and the tensile strength is 455 MPa.
