ASTM B622 Hastelloy B-3 Seamless Pipe Tube?
Hastelloy B-3 / UNS N10675 / 2.4600 is a nickel-based alloy with excellent corrosion resistance and resistance to stress corrosion cracking. Its main components include nickel, molybdenum, iron, chromium and other elements. Hastelloy B-3 seamless pipe is a common form of Hastelloy B-3 material, which is widely used in chemical industry, aerospace, marine engineering and other fields.
Hastelloy B-3 is a nickel-molybdenum alloy with excellent resistance to hydrochloric acid at all concentrations and temperatures.
Features: Hastelloy B-3(ASME SB 622 UNS N10675) has outstanding resistance to hydrochloric acid at all concentrations and temperatures. It also resists sulfuric, phosphoric, formic, acetic acids, and other nonoxidizing media. It has excellent resistance to pitting corrosion, stress corrosion cracking, and knife line and weld heat-affected zone attack. Hastelloy B-3 has greater thermal stability than Hastelloy B-2.

Fabrication with ASME SB 622 Hastelloy B-3
Problems associated with fabrication of alloy B-2 components should be minimized with alloy B-3 due to its improved thermal stability. A low carbon content permits alloy B3 to be used in the as-welded condition. Hastelloy B-3 has good overall forming and welding characteristics. This alloy can be forged or otherwise hot-worked, providing that it is held at 2250° F for a sufficient amount of time to bring the entire piece to temperature. Since it is a low carbon alloy, the use of lower hot finishing temperatures may be necessary to achieve grain size control.
ASTM B622 UNS N10675 Seamless pipe may also be formed by cold working. Although it does work-harden somewhat rapidly, B-3 alloy components can be made using all common cold forming techniques. All common welding techniques may be used with alloy B-3, however, oxyacetylene and submerged arc welding processes are not recommended when the fabricated item is to be used in corrosive service.
Seamless Pipes Fabrications
Hastelloy B-3 seamless tubes are manufactured using advanced processes to ensure high quality, integrity, and performance. The seamless manufacturing process involves several key steps: The process begins with the careful selection of Hastelloy B-3 alloy raw materials. Billet Preparation, Hot Piercing, Cold Drawing, Annealing, Final Finishing, Quality Control.
Customized Dimensions
- Outside Diameter (OD): 3~600mm
- Wall Thickness (THK): 0.5~30mm
- Length (L): 0.5~12m
- The size can be customized according to ASME B36.10 / ASME B36.19
Manufacturers Suppliers of Alloy B3
Our Hastelloy Alloy B-3 seamless pipe & tube is produced strictly according to ASTM B622 standard to ensure that the material meets various strict usage requirements. ASTM B622 is a standard specification for nickel-molybdenum alloy seamless pipe & tube, which specifies the requirements for chemical composition, manufacturing process, size, etc. In the manufacture of Hastelloy B-3 seamless pipe & tube & tube, we employ state-of-the-art production techniques. It guarantees the internal and external surface finish, dimensional accuracy and chemical composition of the pipes. In addition, we can also customize the seamless pipe & tube according to customer requirements, including the length and diameter of the pipe.





