Forged flange, welding neck, slip on, socket welding, threaded, lap joint, blind.
1. Standard: ANSI, API, DIN, UNI, MSS SP44, BS, JIS, non-standard. 2. Material: ASTM A105, ST-37, alloy steel, 304, 304L, 316. 3. Size: 1/2"-72". 4. Class: 150#-2500#.