... steel elbow is used to be installed between two lengths of pipe or tube allowing a change of direction pipe fitting-seamless ... ANSI B16.9 ASTM A234 WPB, JIS,DIN. ETC.SIZE:1/2"---48"THICKNESS:STD,SCH40,SCH20,SCH60, ... SCH80,SCH100,S , CH120,SCH160,XS,XXS,SGP, ETC.carbon steel butt welded seamless Caps is usually used ... pipe rack area.A tee is also called triplet,three way and "T" pieces and it can be used ...