What are seamless fittings?
A seamless fitting is having no joined sections by itself, which is a feature demanded in a few significant applications. If compared, a normal butt weld fitting has one, two or more joins, depending on the shape and dimension, along with manufacturing process.
What is the difference between seam and seamless?
Seamless steel tubes are formed at one time during rolling. Welded steel pipes need to be welded after rolling, generally with spiral welding and straight welding. The performance seamless tube is better, and of course the price is higher
Why all these parts need to be permanently marked?
According to ASME B16.9 and MSS SP-75 but also EN 10253-2 standard norms all part as: seamless elbows, seamsell equal and deducing tees, seamless concentric and eccentric reducers, dished ends and caps need to be identified and marked
