The pressure resistance of high-pressure thick walled elbows does not have a fixed value, but mainly depends on the material, wall thickness, nominal pressure (PN) or pressure class (Class), and needs to be judged based on specific parameters:
Among common materials, thick walled elbows made of carbon steel (such as 20 #), stainless steel (such as 304, 316), or alloy steel pipes usually correspond to the nominal pressure of the pipeline system, ranging from PN16 (1.6MPa) to PN420 (42MPa); If according to the American standard pressure rating (Class), it can cover Class 150 (2.0MPa) to Class 2500 (42MPa), and some customized ultra-high pressure thick walled elbows (such as forged from alloy steel pipes) can even withstand pressures of hundreds of megapascals (MPa).
The actual pressure resistance capacity should be based on the material properties, wall thickness dimensions (strength calculations that meet relevant standards), and factory inspection data of the elbow. Different working conditions (such as temperature and medium corrosiveness) can also affect its actual pressure resistance upper limit, and cannot be generalized based solely on “thick wall”.