ASTM B622 HASTELLOY B3 (N10675) B16.9 LAP JIOINT STB END PIPE FITTING

YUHONG GROUP is professional for Duplex and Suer Duplex pipe/tube/fitting/flange for many projects . Every we export around 4M usd of duplex and suer duplex fitting and flange for more than 30 countries .

Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy B-2. In addition, this nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy B-3 also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy B-3's distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.

ASTM B622 Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube.

Equivalent Grades of Hastelloy B3 (UNS N10675)

Applications

1. Chemical processes

2. Vacuum furnaces

3. Mechanical components in reducing environments

Chemical Composition

Characteristics

1. Maintains excellent ductility during transient exposures to intermediate temperatures.

2. Excellent resistance to pitting, corrosion and stress-corrosion cracking.

3. Excellent resistance to knife-line and heat-affected zone attack.

4. Excellent resistance to acetic, formic and phosphoric acids and other non-oxidizing media.

5. Resistance to hydrochloric acid at all concentrations and temperatures.

6. Thermal stability superior to alloy B-2.