Background

BLOG

High Performance Materials in Investment Casting: A Technical Guide to Superalloys, Duplex Steel, Cobalt-Based Alloys & Monel

High Performance Materials in Investment Casting: A Technical Guide to Superalloys, Duplex Steel, Cobalt-Based Alloys & Monel

Heavy engineering industries such as Power Generation, Marine, Chemical and Oil & Gas demand components with extreme performance capabilities. When choosing a material, the type of material and the type of manufacture method will determine how well the part can perform at the extreme conditions. At Austin Alloy Cast, we believe that using the right high performance alloy and manufacturing technology is the foundation for providing safe, reliable, and long lasting products to our customers.

Information about Austin Alloy Cast, including Precision, Scale, and Trust.

Established in 2012 and operational from 2015, Austin Alloy Cast Pvt. Ltd. is located in Bharudi, next to Rajkot, Gujarat (Western India).

At Austin Alloy Cast, we operate one of the largest investment casting plants in India, backed by a team with more than 20 years of experience.

Over the years, we have also built strong expertise in casting exotic and difficult to handle materials such as Nickel based Alloys, Duplex, Monel, and Stellite. These alloys demand precise melting practices, strict temperature control, and deep metallurgical knowledge that our team has refined through years of hands on experience. This allows us to consistently deliver components where conventional foundries struggle, especially in high temperature, high corrosion, and high wear applications.

Our USPs:
  • Casting Capability — We can cast from a few grams to 200 kg parts.
  • Production Capability — Where up to approximately 1800 metric tons annually will accommodate both prototype and mass volume production.
  • Comprehensive service under one roof — We have casting capabilities plus integrated Machine Shop as well as all kinds of NDT testing in house including Radiography Test.
  • Quality Control —Our process is designed to have the strictest of process control parameters.
  • Global standard compliance — Our castings meet international standards (ASTM, DIN, ISO), and we hold approvals for critical industries including marine, oil & gas and general engineering.

We have provided our clients with complete end to end service capabilities through the integration of advanced infrastructure, engineering expertise and skilled personnel, from Design; Consultation and Prototype Development to Finished Components ready for installation.

The Importance of Investing in High Performance Alloys

Typical steels or more common types of metal usually don’t hold up when put into the vicinity of high temperatures starting with turbines up to the corrosive and erosive effects of water and chemicals to the extent of using steels for large mechanical systems which have much heavier loads placed on them than both chemical and water applications. Superalloys, duplex alloys, cobalt alloys and heat resistant steels fill the gap of what traditional alloys have failed at.

With the proper alloy, the following characteristics are maintained:

  • Resistance against extreme heat and thermal cycling
  • Resistance against corrosion, abrasions, and erosions
  • Strength and toughness maintained while applying mechanical forces
  • Will operate and perform reliably over the long term with little to no corrosion and a fictitious lifespan

At Austin Alloy Cast, we have a complete line of materials; Carbon Steels, Stainless Steels, Alloy Steels, Duplex and Super Duplex grades, Tool Steels, Nickel Alloys, Cobalt Alloys, Monel and Heat Resisting Steels allowing you the freedom to select a material that’s best suited for your application.

Superalloys; Strength & Stability Under Extreme Heat

For applications involving high temperatures and thermal stresses such as turbines, furnace parts, power plant components and aerospace hardware nickel based superalloys and other heat resistant alloys are the materials of choice.

These alloys:

  • Maintain strength at elevated temperatures
  • Resist creep and deformation under sustained heat
  • Offer oxidation and thermal fatigue resistance

At Austin Alloy Cast, our foundry is fully equipped to cast these superalloys in air-melt condition via the lost wax investment casting process, ensuring fine surface finish, dimensional accuracy, and minimal defects.

Once cast, components are subjected to strict heat treatment, inspection, and quality control guaranteeing performance even in the most demanding thermal environments.

In fact, Nickel based alloys like Inconel 625 are regularly poured at our foundry. We have the capabilities to execute large order in such exotic materials.

Duplex & Super Duplex Steels; Balancing Strength with Corrosion Resistance

For industries like marine, offshore, chemical processing, and petrochemical components often face harsh corrosion, saltwater exposure, acidic media, or chloride rich environments. Simple stainless steel may not suffice here.

Duplex and Super Duplex steels are alloys made with Austenitic and Ferritic phases, and represent the perfect marriage of strength and corrosion resistance due to their:

  • High tension and toughness
  • Resistance to Pitting, Crevice and Stress Corrosion
  • Reliability under cyclic loads and corrosive environments

We’re able to use these alloys in pump housings, valve bodies, subsea components, offshore equipment and chemical processing hardware.

We regularly cast components of duplex grades at our facility, closely monitoring the microstructure to ensure compliance with stringent industry regulations.

Tool and Cobalt Alloys; Designed for Wear, Erosion, and Hardness.

Wherever wear resistance, galling resistance, or sustaining hardness is critical due to an application’s requirement for a combination of high stress TEMPERATURE conditions, Cobalt Based Alloys are outstanding choices.

Cobalt Based Alloys, along with their excellent wear resistance, are also ideal for the following applications:

  • Valve seats, trims and cores
  • Pump components including sleeves, bushings, etc. subject to significant wear
  • Die, Tool, and Wear Plate Applications for Hot Working Application
  • Any component that will be subjected to abrasive/erosive MEDIA.

Cobalt Base Alloys may prove difficult to machine or forge; therefore, investment casting would be a preferred method. At Austin Alloy Cast, we utilize our ability to cast cobalt based alloys to cast complex geometries and intricate parts with a minimum amount of finishing and consistent mechanical properties.

Heat resistant steels/alloys Dealing with thermal cycles and environmental strain

Many industries use heat resistant materials via periodic thermal cycles, oxidising atmospheres, or extended periods of exposing to HIGH TEMPERATURES. For those conditions, heat resistant steels or Specialty Alloy Steels provide you with the durability you need.

These materials withstand the following:

  • Scaling and Oxidation
  • Thermal fatigue and distortion
  • Loss of Mechanical Strength over multiple cycles.

Through precise control in melting, casting, and post casting heat treatment, Austin Alloy Cast ensures that heat resistant steel castings meet design specifications and withstand long term exposure to thermal stress.

Metallurgy, Process Control, and Quality are Important

High performance castings require more than just choosing a good alloy. At Austin Alloy Cast we focus on:

  • Accurate chemistry and composition of the melt,
  • Proper handling of the wax pattern, including controlled shell building,
  • Controlled temperature and time for pouring and solidification,
  • Proven heat treatment cycles that meet the requirements of each alloy,
  • Thorough inspections and tests, including radiographic, dye penetrant, magnetic particle, ultrasonic, microstructure examination and dimensional measuring.

This structured process ensures that the castings supplied to customers are free from any defects, correctly sized, and possess consistent mechanical and chemical characteristics in extreme service environments.

Conclusion

In today’s industrial economy, the requirements for industrial land applications offshore drilling, power generation, chemical processing, heavy equipment, and marine are extremely demanding of component performance. Conventional materials simply cannot meet the required performance criteria. In this regard, high performance alloys and precision investment casting are essential.

Austin Alloy Cast utilizes decades of metallurgical experience and expertise combined with modern facilities, international quality control standards, and an unwavering commitment to customer satisfaction. No matter if you require nickel based superalloys, duplex/super duplex steels, cobalt based alloys, or heat resistant steels, we will provide you with components manufactured to the highest integrity levels of accuracy and consistency to perform in the most severe environments.

If you are a component designer whose applications are subjected to high stress, high corrosive wear intensive environments, contact Austin Alloy Cast today and partner with us. We don’t merely manufacture metal components, we engineer reliability, performance, and confidence.

To have a glimpse at our world class facility and products, visit us at www.austinalloycast.com.
For any queries or details contact us at info@austinalloycast.com.