Swivel Elbow | Balustrade Components Stainless Steel Swivel Elbow. High quality stainless steel in a brushed finish. Swivel Elbow is formed from Stainless Steel Grade 304 or Grade 316. The Elbow will suit 42.4 dia CHS x2 THK and it is a glue fit type fitting or it can be plug welded or welded all the way around then polished. You can find our other Balustrade Components here.