Hastelloy C-276 for Hydrogen Storage & Transport | High-Performance Hydrogen Resistant Alloy

Description of Hastelloy C276

What is Hastelloy C276?

Hastelloy C-276 is a versatile, nickel-based corrosion-resistant alloy known for its exceptional durability in severe operational conditions. Its optimized composition provides outstanding resistance to pitting, stress-corrosion cracking, and oxidizing atmospheres up to high temperatures. In hydrogen applications, this high-performance alloy is particularly valued for its superior resistance to hydrogen embrittlement—a common failure mode in standard stainless steels. This makes Hastelloy C-276 an indispensable material for ensuring the safety, longevity, and reliability of systems involved in green hydrogen production, storage, and distribution.

Key Features of Hastelloy C276

The superior performance of Hastelloy C-276 in hydrogen energy systems stems from its key characteristics:

• Exceptional Hydrogen Embrittlement Resistance: 

  Withstands exposure to high-pressure hydrogen environments, maintaining ductility and preventing catastrophic failure where other materials degrade.

• Superior Overall Corrosion Resistance: 

  Excellent resistance to a wide range of aggressive chemicals, including chlorides, sulfuric acid, and phosphoric acid, which may be encountered in hydrogen production processes.

• Excellent Fabricability: 

  This high-performance alloy can be readily welded and fabricated using standard techniques, allowing for the construction of complex components for hydrogen transport and storage vessels.

• High-Temperature Stability: 

  Retains its mechanical properties and corrosion resistance over a wide temperature range, suitable for various stages within the hydrogen energy value chain.

• Proven Reliability: 

  A long history of successful use in the most demanding chemical processing and aerospace industries, ensuring dependable performance in critical fuel cell applications.

Chemical of Hastelloy C276

Application Field of Hastelloy C276 

This hydrogen resistant alloy is specified for numerous critical applications within the hydrogen energy sector:

• High-Pressure Hydrogen Storage Vessels and Cylinders

• Piping and Tubing for Hydrogen Transport

• Components within Electrolyzers for Green Hydrogen Production

• Fuel Cell Stack Components and Bipolar Plates

• Valves, Fittings, and Fasteners in Hydrogen Service

• Compressor Parts for Hydrogen Refueling Stations

Advantage of Hastelloy C276  

About DLX

Founded in 2002, CHANGZHOU DLX ALLOY CO., LTD is a leading manufacturer specializing in the research and production of specialized alloy materials. Our factory has earned both the ISO9001 International Quality Management System Certificate and SGS Certification, affirming our commitment to high standards of quality.

We are experts in the entire alloy production process, including melting, drawing, heat treatment, finishing, and rigorous testing. Our product range includes nickel-based, copper-based, and iron-based alloys, such as super alloys, welding materials, anti-corrosion alloys, precision alloys, FeCrAl alloys, NiCr alloys, CuNi alloys, and thermocouples. These are available in various forms including wire, strip, ribbon, bar, tube, and plate.

FAQ:

Q1: Why is Hastelloy C-276 preferred over stainless steel for hydrogen applications?

A: Standard stainless steels are highly susceptible to hydrogen embrittlement, especially under high pressure, leading to loss of ductility and cracking. Hastelloy C-276, as a hydrogen resistant alloy, maintains its mechanical integrity and resembrittlement, ensuring long-term safety and reliability in hydrogen storage and transport systems.

Q2: Can Hastelloy C-276 be used in high-temperature hydrogen environments?

A: Yes. Hastelloy C-276 retains excellent mechanical strength and corrosion resistance at elevated temperatures, making it suitable for various stages within hydrogen production and processing where heat is a factor.

Q3: What forms of Hastelloy C-276 are available for hydrogen component manufacturing?

A: We supply Hastelloy C-276 in various forms to meet your fabrication needs, including sheet, strip, plate, bar, wire, pipe, and tubing, specifically for hydrogen energy components.

Q4: Is Hastelloy C-276 suitable for welding in hydrogen service equipment?

A: Absolutely. Hastelloy C-276 is known for its excellent weldability. It can be readily fabricated using common welding methods without undergoing post-weld heat treatment, which is crucial for constructing large hydrogen transport and storage vessels.