Rajveer Stainless And Alloys is Govt. approved certified Hastelloy C276 Flanges, ASTM B564 UNS, ASME B16.5, Hastelloy C276 Flanges hardness as per NACE MR0175 and tested to ASTM A262 E and PMI. Application of hastelloy c276 flanges are To Connect Pipe & Tubes in Petroleum, Power, Chemical, Construction, Gas, Metallurgy, Shipbuilding etc.