Choosing Right Hastelloy Filler Wire for your Next Project

Hastelloy Filler Wire

Hastelloy is an extremely versatile and high-performing material that is perfect for use in various industrial applications. The combination of nickel, chromium, and molybdenum in its composition grants it high resistance to corrosion and heat. Choosing the right Hastelloy filler wire for your next project is crucial to ensuring the success of your work. Filler wires provide strength and durability by joining two pieces of base metal together. This blog will provide expert guidance to help you select the best Hastelloy filler wire for your project.

What is Hastelloy Filler wire?

Hastelloy Filler Wire is a corrosion-resistant alloy consisting of nickel, chromium, and molybdenum, known for its outstanding performance in challenging conditions such as elevated temperatures and exposure to corrosive substances. This wire is highly sought after in various industries due to its exceptional weldability and formability, making it a preferred material for welding applications involving tanks and vessels.

Benefits of Hastelloy Filler Wire

Outstanding Corrosion Resistance of Hastelloy Filler Wire

The primary benefit of the wire is its outstanding corrosion resistance. This alloy is highly resistant to acidic and basic environments, making it an ideal choice for use in various industries.

Excellent Weldability                   

Hastelloy filler wire also has excellent weldability, which can be easily joined to other metals using welding techniques. This makes it an ideal choice for use in applications where a strong joint is required, such as in the construction of bridges or buildings.

High Strength and Durability

Hastelloy filler wire is also notable for its high strength and durability. This alloy can withstand high temperatures and pressures, making it an ideal choice for use in demanding applications such as in the aerospace or automotive industries.

Good Electrical and Thermal Conductivity

Another benefit of this wire is its good electrical and thermal conductivity. This implies that it finds utility in applications that require electrical or heat transfer, such as in electrical wiring or heat exchangers.

Resistant to Stress Corrosion Cracking

Finally, this wire is resistant to stress corrosion cracking, which will not crack under high-stress levels. This makes it an ideal choice for critical applications such as pipelines or pressure vessels.

Key Considerations for Selecting the Perfect Hastelloy Filler Wire

Identify the Right Hastelloy Material for Your Specific Needs

Before selecting a filler wire, you must identify which Hastelloy material is right for your needs. The two most commonly used grades are Hastelloy B-2 and Hastelloy C-276. Hastelloy B-2 is best suited for applications requiring high resistance to stress corrosion cracking. Hastelloy C-276, on the other hand, has the added benefit of being highly resistant to pitting, crevice corrosion, and oxidation. Both of these grades have unique applications, so choosing the material that best suits your project’s specific needs is essential.

Understand the Different Filler Wire Types

Several different types of Hastelloy filler wires are available, each with unique properties. Depending on the application, you may need to choose a particular filler wire type. For example, Hastelloy C-276 has a range of filler wires available, including ERNiCrMo-4, ERNiCrMo-7, and ERNiCrMo-10. ERNiCrMo-4 can be used in high-temperature applications, while ERNiCrMo-7 is ideal for welding Hastelloy C-2000. Understanding the different filler wire types is essential to make a well-informed choice.

Consider the Welding Process

The welding process used is crucial when selecting a filler wire. Hastelloy is best suited for TIG (Tungsten Inert Gas) welding, but some filler wires are more suited to different welding processes, such as MIG (Metal Inert Gas) or Stick welding. When choosing a filler wire, it is essential to consider the specifications of the welding process, such as current, frequency, and voltage. Choosing the wrong filler wire type for your welding process can result in poor quality welds or even welding failure.

Look for the Right Certifications and Specifications

Hastelloy filler wires must meet certain specifications and certifications to ensure excellent quality and performance. One essential certification is AWS (American Welding Society). Different Hastelloy filler wires meet different AWS standards, such as AWS A5.14, AWS EB-2, and AWS A5.11. Ultimately, the filler wire you choose must meet your specific project requirements.

Seek Expert Advice

Selecting the right wire can be challenging, especially if you need to familiarize yourself with the material. Seeking expert advice can help ensure that your project is successful and that you make the right choice when choosing a filler wire. At Welding For Less, we offer expert advice on selecting the right Hastelloy wire for your project.


Selecting the right filler wire is an essential step in the welding process and can greatly impact your project’s overall quality and performance. Before choosing a Hastelloy filler wire, it is essential to identify the right material, understand the different filler wire types, consider the welding process, look for the right certifications and specifications, and seek expert advice. Our information in this blog has given you a better understanding of selecting the right wire for your next project. Remember, if you have any questions, our team of experts is here to help you.