This browser is no longer supported. Upgrade to Microsoft Edge or switch to a supported browser, like Chrome, Safari, or Firefox, to explore the MW Components website.

We're sorry for the inconvenience.

Products > Bellows / Couplings > Metal Bellows

Edge-Welded Hastelloy Bellows

Hastelloy® is a special alloy with superior chemical compatibility. With the capability of manufacturing bellows from Hastelloy, applications with highly specialized and corrosive media can now benefit from bellows. Pharmaceutical, process and chemical equipment requiring high vacuum or positive pressure use edge welded bellows to ensure high accuracy and repeatable results.

Request a Quote


Custom Hastelloy Bellows

Our facilities specialize in custom component production, offering a variety of specialty finishes and materials as well as a selection of optional manufacturing services. Some of these services include design, tooling, CAD modeling, and various secondary machining processes.

Send us your specs or configure a part.

Request a Quote

Hastelloy Bellows Manufacturing

Edge welded bellows offer high stroke capability in comparison to other bellows. This can reduce the size of the required bellows as well as the cost. Bellows made from Hastelloy can be designed as a mechanical seal, expansion joint, volume compensator, or actuator.

With the flexibility to customize, MW Components can manufacture and weld custom fittings, flanges, and weld rings to its bellows to make customer installations easy and seamless.

*Hastelloy® is a registered trademark of Haynes International, Inc.

Looking for information on standard sizes? To view a list of standard die sizes MW uses, visit our standard edge-welded bellows diaphragm size page.

Edge-Welded Hastelloy Bellows Specifications

Specification Range
Material Alloy 276 (Hastelloy 276C) (Haynes 242 also available; contact factory)
Thickness 0.003″ and up every 0.001″
Standard Leak Rate <1×10-5 std. CC He/sec
Size (OD) 0.358″ (9.0932mm) to 22.205″ (564mm)
Size (ID) 0.198″ (5.029mm) to 19.921″ (505.99mm)
Shapes Round standard. Non-round available; ask an MW expert.
Length Up to 96 inches (244 cm)
Temperature -420 to 1000°F

Other Bellows Products

Our Manufacturing Locations

Need More Information?

For further details, including additional dimensions capabilities, ask an MW expert.