Although stainless steel seamless elbows have excellent performance, there are pitfalls in operation. Improper operation not only affects work efficiency but may also result in premature scrapping.
So which operations are ‘fatal’?
1. Violent handling and storage: If thrown or dragged, it can cause hidden cracks inside the seamless stainless steel elbow, resulting in a pressure drop of over 80%. There is also open-air storage, and if it rains, rainwater infiltration can cause chloride ion corrosion (rust spots can be seen in coastal areas within 48 hours).
Correct operation: Soft lifting straps should be used for transporting stainless steel seamless elbows, and rubber pads should be stored off the ground. If left idle for a long time, rust proof oil and sealed pipe openings should be applied.
2. Savage cutting: Like ordinary grinding wheel cutting, high temperature can cause intergranular corrosion of materials.
The correct choice is to use a plasma cutting machine and argon gas protection, and after cutting, polish the groove to remove burrs.