Hastelloy C276 Flanges are made up of the nickel chromium molybdenum alloy that is called hastelloy. The composition includes 50.99% nickel, 14.5% chromium, 15% molybdenum and carbon, manganese, silicon, sulfur, cobalt, iron and phosphorus in it. The Hastelloy C276 Flanges have high melting point of 1370 degrees Celsius. This high melting point allows for higher operating temperatures of the flanges. The material also has 790MPa minimum tensile strength and 355MPa minimum yield strength.

The Alloy C276 Forged Flange is made through a forging process which makes the flanges stronger. These are made from a single piece of raw material to remain in shape. There are different sizes, standards and specifications for the flanges such as the UNS N10276 SORF Flange. The flanges can be of ASTM B564 specification and different standards according to the ANSI, ASME, EN or DIN standards. There are different sizes ranging from ½ inches to 60 inches in this grade of material.

The ASTM B564 Hastelloy C276 Pipe Flanges can also come in different pressure classes. The pressure classes range from 150 through 2500 and PN6 through PN64. There are different application types such as offshore oil drilling, power generation, petrochemicals, gas processing, specialty chemicals and others which use these flanges. There are special flanges like the Hastelloy Alloy C276 Blind Flanges which are used to close a pipeline either temporarily or permanently. The type of flange and the application requirements vary. The flanges are also used in pharmaceuticals, petrochemicals, sea water equipment, heat exchangers and in condensers.