Forged Boss

Rio Engineering are leading manufacturers of flanges and Pipe Fittings from Mumbai, Maharashtra, India. We manufacture FORGE FITTINGS – Forged BOSS as per International standard and material Grad. These products are available in various sizes, shapes, and designs as per the specific requirements of our clients.

Rio Engineering is a manufacturer, Stockiest and Exporter of Premium quality treaded boss, stainless steel flanges, and stainless steel pipe fittings that are manufactured under the expert guidance of our diligent workforce. Our ASME B16.11 / BS3799 forged boss and other fitting products are manufactured by using quality material and a quality check process. Designed in compliance with international quality standards which are corrosion resistance, sturdy and durable.

Size: 1/2″NB TO 4″

Class: 3000 LBS, 6000; BS, 9000 LBS


• Stainless Steel – ASTM A182 F304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
• Carbon Steel – ASTM 105/A694/Grade F 42/46/52/56/60/65/70
• Low Temperature Carbon Steel – A350 LF3 / A350 LF2
• Alloy Steel : ASTM/ ASME A/SA182 F1/F5/F9/F11/F22/F91
• Duplex / super duplex steel : ASTM/ASME A/SA 182, UNS F-44, F-45, F-51, F-53, F-55, F-60, F-61

• Nickel Alloy
           • Copper Alloy

• Hot Dip Galvanizing
• Electro Polish