Stainless steel seamless pipes will not burst under normal circumstances. The main reasons for their bursting are related to materials, processes, welding, and use.

If the chemical composition of the stainless steel seamless pipe material is deviated, such as insufficient nickel and chromium content or excessive carbon content, the toughness of the seamless pipe will decrease, the hardness will increase, and brittle cracks will easily occur under high pressure. The steel strip of the medium frequency furnace has many impurities and the carbon content exceeds the standard. The risk of fracture during bending processing is significant; in addition, there are abnormal internal structures, such as inclusions, pores or coarse grains that weaken the compressive strength, and cracks expand from weak points when under pressure.

In terms of process, improper rolling of stainless steel seamless pipes, such as excessive rolling force to form microscopic large holes, or uneven wall thickness resulting in local pressure exceeding the limit; improper heat treatment, insufficient solution treatment, and residual internal stress will accelerate the cracking tendency during service.

In terms of welding, the weld quality of stainless steel seamless pipes is poor, and defects such as incomplete penetration and undercuts form high-strength stress concentration points, and cracks spread along the welds; the welds are not completely passivated after welding, and the corrosive medium preferentially erodes the weld area, causing bursting. During the use of stainless steel seamless pipes, if the design pressure is exceeded for a long time or the pressure fluctuates frequently, metal fatigue cracking will occur. Chloride ion environment can also induce stress corrosion cracking. In addition, there is insufficient support during installation or thermal expansion and contraction are not compensated, resulting in additional mechanical stress superposition.