Hastelloy Alloy B-2 Pipes & Tubes

Material Description UNS N10665 Chemical Composition, % Ni Mo Fe C Co Cr Mn Si P S Bal. 26.0-30.0 2.0 max .02 max 1.0 max 1.0 max 1.0 max .10 max .040 max .030 max Alloy B-2 is a nickel-molybdenum alloy with significant resistance to reducing environments, such as hydrogen chloride gas and sulfuric, acetic and phosphoric acids. Alloy B-2 provides resistance to pure sulfuric acid and a number of non-oxidizing acids. The alloy should not be used in oxidizing media or where oxidizing contaminants are available in reducing media. Premature failure may occur if B-2 is used where iron or copper is present in a system containing hydrochloric acid. Characteristics ● Good resistance to a wide range of organic acids and the resistance to chloride-induced stress-corrosion cracking.

● Good resistance to the formation of grain boundary carbide precipitates in the weld heat-affected zone, making it suitable for most chemical process applications in the as-welded condition. The heat-affected weld zones have reduced precipitation of carbides and other phases to ensure uniform corrosion resistance.

● Alloy B-2 also has excellent resistance to pitting and stress corrosion cracking.

Application

● Superior resistance to hydrochloric acid, aluminum chloride catalysts and other strongly reducing chemicals. Excellent high-temperature strength in inert and vacuum atmospheres.

● Particularly suited for equipment handling reducing chemical environments .

● Applications in the chemical process industry involving sulfuric, phosphoric, hydrochloric and acetic acid. Temperature uses vary from ambient temperature to 1500°F depending on the environments

Seamless Tube Information:

Specification: ASTM B-622 / ASME SB-622

Outside Diameter: 6.0-114 mm

Wall Thickness: 0.5-15 mm

Length: Max.24000mm (the maximum length is for the scope of special diameters and walls)

Other sizes are on the request