Stainless Steel Unions are made of quality materials and quality tested on various parameters. The customers are pleased by the availability of Steel Unions in various sizes and grades. The Stainless Steel Union is known for highly durability, efficiency and resistance to corrosion. Stainless Steel Unions are offered at market leading prices in secured packing. Standards : ANSI B16.11, BS3799, MSS SP79 & MSS SP97 Pressure Ratings : 3000#, 6000# & 9000# Size : ¼” to 4” NB Grades : ASTM A182 F304L &