Custom Inconel 625 Bellows

Our Inconel 625 Bellows are precision-engineered expansion joints made from high-performance nickel-chromium alloy, designed for high-temperature, high-pressure, and highly corrosive environments. Manufactured using advanced hydroforming technology, these bellows deliver exceptional flexibility, fatigue resistance, and leak-proof sealing, with fully customizable dimensions, waveforms, and end connections to meet demanding applications in aerospace, chemical processing, oil & gas, and power generation.

Parameter	Custom Range / Standard Value
Material	Inconel 625 (UNS N06625)
Diameter	Φ10mm – Φ600mm (custom sizes available)
Wall Thickness	0.2mm – 5mm (pressure-optimized)
Waveform	U-Type / C-Type / Ω-Type / Multi-Layer
Pressure Rating	0.1MPa – 15MPa (reinforced options)
Temperature Range	-196°C to +980°C (cryogenic to high-temp)
End Connections	Flanges, weld ends, threaded, custom fittings
Standards	ASME B31.3, EN 13445, ISO 9001

Material Properties

 

✔ Superior Corrosion Resistance – Resists pitting, crevice corrosion, and oxidation in acids, seawater, and chlorides.

✔ High-Temperature Strength – Maintains structural integrity up to 980°C (1800°F).

✔ Excellent Fatigue Life – Withstands cyclic stress in dynamic applications.

✔ Low Thermal Expansion – Minimizes thermal deformation in extreme environments.

Chemical Composition (%)

Manufacturing Standards

 

ASTM B443 (Plate, Sheet, Strip)

 

ASTM B704 (Welded Tubes)

 

ASME BPVC Section VIII (Pressure Vessels)

 

NACE MR0175 (Sulfide Stress Corrosion Resistance)

Aerospace: Exhaust systems, turbine expansion joints.

Oil & Gas: Offshore piping, subsea equipment.

Chemical Processing: Reactor linings, acid transport.

Power Generation: Heat exchangers, nuclear coolant systems.

Semiconductor: High-purity gas delivery.

✅ Fully Customizable – Tailored dimensions, waveforms, and end fittings.

✅ Long Service Life – Outperforms stainless steel in harsh conditions.

✅ Leak-Free Performance – Precision welding ensures hermetic sealing.

✅ Fast Lead Times – Prototypes in 2 weeks, bulk orders in 4-6 weeks.

⚠ Do's:

 

Inspect for shipping damage before installation.

 

Align pipes properly to avoid torsional stress.

 

Use Inconel 625-compatible gaskets/flanges.

 

⚠ Don'ts:

 

Exceed rated pressure/temperature limits.

 

Weld without purge gas (to prevent carbide precipitation).

 

Use in fluorine-rich environments (risk of embrittlement).

Global Shipping Options:

At Ehisen, we understand the importance of reliable and efficient delivery for our metalwork pieces. That's why we offer a variety of shipping options to meet the diverse needs of our international clients.

 

Standard Shipping: Our standard shipping offers an affordable way to deliver your order within the typical timeframe of 15-30 business days, depending on your location.

 

Express Shipping: For faster delivery, choose our express shipping service which ensures your order arrives within 7-15 business days.

 

Custom Solutions: For large or unique orders, we provide custom logistics solutions tailored to ensure the safe and timely arrival of your products.

Packaging:

Every order is packaged with utmost care using robust materials designed to protect your metalwork during transit. For specific packaging requirements or concerns, please contact our support team.

Tracking Your Order:

Once your order is dispatched, you will receive a tracking number via email. You can use this number to check the current status of your shipment on our website at any time.

Customs and Duties:

Please note that international shipments may be subject to customs fees and import duties. These charges are the responsibility of the recipient and vary from country to country. We recommend contacting your local customs office for further information.

Need Help?

Our customer service team is here to assist with any shipping or delivery questions you may have. Contact us or via our live chat service on our website.

ehisen

 

The company is created in 2004 as a high-tech organization focused on advanced metal material production,including melting,profiling,machining,and precious metal anode research and development.Our company, which employs 50 people and occupies a 15 mu area, is focused on innovative manufacturing.
The business is equipped with rolling, heat-treating, stamping, and alloy production machinery.Processing centers, electroplating,titanium anode production lines and precious metal coating laboratory,as well as related testing equipment.It has evolved over years into a whole business that combines R&D, manufacturing, and sales.

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