Azamin Enterprise Private Limited

• Stellite™ is a family of cobalt-chromium alloys known for their hardness, wear resistance, and resistance to high temperatures. It often contains significant amounts of cobalt (Co), chromium (Cr), and sometimes tungsten (W), which contribute to its hardness and durability.

• Stellite alloys are typically used in high-wear and high-temperature environments, such as turbine blades, valve seats, and other parts exposed to extreme conditions.

• Stellite™ welding typically requires a filler material of a similar composition to maintain the alloy's integrity and properties. A Stellite-specific welding rod (such as Stellite™ 6 or Stellite™ 12 rods) is often used to provide optimal results.

• The filler rod must be carefully selected to match the desired properties of the final weld.

• Neutral Flame: For oxy-acetylene welding of Stellite™ alloys, a neutral flame (i.e., equal parts oxygen and acetylene) is recommended. This helps ensure that the base metal is not oxidized and that the filler material is properly melted and fused with the base metal.

• Composition: Primarily cobalt, chromium, and tungsten/molybdenum, with some carbon content to form carbides for hardness.

• Properties:

  • High hardness and wear resistance

  • Excellent corrosion and oxidation resistance

  • Retains properties at high temperatures (up to ~900°C or more)

  • Used for valve seats, cutting tools, pump sleeves, bearing surfaces, etc

Composition:

• Nickel-based alloys are primarily composed of Nickel (Ni) as the base metal, often combined with elements like chromium (Cr), molybdenum (Mo), iron (Fe), and other alloying elements to enhance specific properties such as resistance to oxidation, corrosion, and high-temperature performance.

• Some popular Nickel-based alloys include Inconel, Monel, Hastelloy, and Nickel 200.

Properties:

• High-temperature Strength: Nickel-based alloys retain their mechanical properties at elevated temperatures, making them ideal for applications in furnaces, gas turbines, and engines.

• Corrosion and Oxidation Resistance: These alloys are resistant to a wide range of corrosive environments, including acidic, alkaline, and seawater conditions, which makes them suitable for marine and chemical industries.

Shielding Gas:

• For TIG (GTAW) or MIG (GMAW) processes, inert gases like argon or helium are commonly used as shielding gases.

Welding Process:

• While TIG (Gas Tungsten Arc Welding) provides the most control and precision, MIG (Metal Inert Gas) and SMAW (Shielded Metal Arc Welding) are also common methods used for welding nickel-based alloys, depending on the application.

Welding Parameters:

• Nickel-based alloys have a high thermal conductivity, which requires appropriate adjustment of heat input, particularly during welding of thicker sections

1. Composition:

   • Nickel-based alloys are primarily composed of Nickel (Ni) as the main element, combined with other elements like Chromium (Cr), Molybdenum (Mo), Iron (Fe), and others, to enhance their properties.

   • Inconel, Monel, Hastelloy, and Nickel 200 are common types of nickel-based alloys used for welding rods.

2. Properties:

   • High Temperature Resistance

High Wear Resistance:

• Tribaloy™ T-400 exhibits excellent wear resistance, making it ideal for components subjected to high friction and abrasive conditions.

High-Temperature Performance:

• This alloy is designed to perform well at elevated temperatures, retaining its strength and toughness even under prolonged exposure to high heat.

Corrosion and Oxidation Resistance:

• Tribaloy™ T-400 is resistant to oxidation and corrosion in high-temperature and aggressive environments, such as those found in gas turbines, industrial engines, and chemical processing equipment.

Creep Resistance:

• It provides excellent resistance to creep (deformation under high temperature and stress), which is important for components in critical, high-stress applications like turbines or nozzles.

High Corrosion Resistance:

• Deloro 50 provides outstanding resistance to a wide range of corrosive environments, including acidic and alkaline conditions, making it suitable for chemical processing and marine environments.

High Temperature Resistance:

• The alloy is capable of withstanding elevated temperatures without losing mechanical properties, which makes it suitable for high-temperature applications like turbine blades, valves, and other critical components exposed to heat.

Excellent Wear Resistance:

• Deloro 50 excels in high-wear environments, providing wear resistance in applications such as pumps, valves, and other parts subject to abrasion and erosion.

High-Temperature Resistance:

• Deloro 40 performs exceptionally well in high-temperature environments. The alloy maintains its strength and durability even under prolonged exposure to elevated temperatures, making it suitable for use in turbines, engines, and exhaust systems.

Corrosion and Oxidation Resistance:

• The alloy has excellent resistance to both corrosion and oxidation, especially in environments that involve exposure to gases, chemicals, and high-temperature oxidation. This makes it ideal for industries such as aerospace and chemical processing.

Wear Resistance:

• Deloro 40 provides high wear resistance, making it suitable for use in parts subjected to high friction or abrasive conditions. It can be used for hardfacing applications to improve the durability of parts like pumps, valves, and other machinery components.

High-Temperature Strength:

• Deloro 60 provides excellent strength at elevated temperatures, allowing it to maintain its integrity under thermal stresses. This makes it suitable for components exposed to high heat in industries such as power generation and aerospace.

Corrosion Resistance:

• The alloy exhibits outstanding resistance to both general corrosion and localized forms of corrosion, such as pitting and crevice corrosion. This is particularly useful in applications where parts are exposed to harsh chemicals, seawater, or high-temperature gases.

Oxidation Resistance:

• Deloro 60 resists oxidation at elevated temperatures, ensuring the longevity of welded components, even in environments where other materials would quickly degrade.

Alloy Type: AlSi5 (Aluminum-Silicon)

AWS Classification: ER4043

Tensile Strength: Approximately 124 MPa (18 ksi)

Yield Strength: Approximately 55 MPa (8 ksi)

Elongation: 18%

Melting Point: Approximately 570°C (1058°F)

Not Heat Treatable: Maintains mechanical properties without requiring post-weld heat treatment

Not Recommended for Anodizing: May result in a dark grey color after anodizing

Welding Process Compatibility: TIG (GTAW), MIG (GMAW)

Polarity: AC

Packaging: Available in 5 kg (11 lb) tube