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HASTELLOY® 182 Coated Electrodes – Composition, Properties, and Uses

HASTELLOY® 182 Coated Electrodes

If you’re looking for a material that can withstand extreme temperatures, high pressure, and harsh industrial environments, you might want to consider using HASTELLOY® 182 coated electrodes. This material is commonly used in aerospace, chemical processing, oil and gas, and other industries where durable and reliable materials are necessary. This blog post will discuss the composition, properties, and uses of HASTELLOY® 182 coated electrodes to help you understand why it’s the right choice for your next project.

What are HASTELLOY® 182 Coated Electrodes?

HASTELLOY® 182 Coated Electrodes are a special type of electrode wire for welding. These electrodes have an alloy-based coating that protects against corrosion, cracking, and other weld defects. The coating’s unique blend of Chromium, Nickel and Iron produces a strong bond between the welded metal parts, making it more heat-resistant than traditional uncoated electrodes. Its increased toughness suits many welding applications, including high-temperature and pressure environments. Additionally, HASTELLOY® 182 Coated Electrodes come with excellent arc stability and wetting capabilities.

HASTELLOY® 182 Welding Electrodes Composition

HASTELLOY® 182 welding wire are made of a nickel-chromium alloy that contains molybdenum, tungsten, and niobium. These elements give HASTELLOY® 182 exceptional properties, including high tensile strength, flexibility, and corrosion and oxidation resistance. The typical chemical composition of HASTELLOY® 182 is 62% nickel, 28% chromium, 5.5% molybdenum, 1.5% tungsten, 1.45% niobium, and 0.15% carbon.

Nickel: Balance
Chromium: 13.0-17.0
Cobalt: 0.12 max.*
Titanium: 1.0 max.
Iron: 10.0 max.
Manganese: 5.0-9.5
Niobium** + Tantalum 1.0-2.5
Silicon: 1.0 max.
Copper: 0.5 max.
Other: 0.5 max.
Carbon: 0.1 max.
Phosphorus: 0.03 max.
Sulfur: 0.015 max.

HASTELLOY® 182 Coated Electrodes Mechanical Properties

HASTELLOY® 182 filler metal have high mechanical strength and toughness at room and elevated temperatures. The welding rods can support 90 ksi (620 MPa) tensile strength and have an elongation of over 25%. The electrodes also offer good impact properties at cryogenic temperatures, making them ideal for stress-corrosion cracking resistance applications.

Tensile (psi) 80,000
Mpa 550
Elongation (%) 30

HASTELLOY® 182 Welding Electrodes Physical Properties

HASTELLOY® 182 filler wire have a density of 8.1 g/cm³, a melting point of 1393-1427°C (2530-2600°F), and a specific heat of 0.102 cal/g/°C. The electrodes are also highly resistant to scaling and have a thermal conductivity of 8.7 Btu-in/hr-ft²-°F (12.6 W/m-K).

HASTELLOY® 182 Coated Electrodes Trade Name

Class UNS Haynes
ENiCrFe-3 W86182 HAYNES® 182

HASTELLOY® 182 Welding Electrodes Uses

HASTELLOY® 182 electrodes are commonly used in the aerospace, chemical processing, oil and gas, and energy industries. They are ideal for welding dissimilar metals, including stainless steel, Inconel, Monel, and high nickel alloys. The electrodes are also used for fabricating critical components such as pressure vessels, heat exchangers, and reactors that operate in harsh environments.

HASTELLOY® 182 Coated Electrodes Corrosion Resistance

One of the most significant advantages of HASTELLOY® 182 welding electrodes is their exceptional resistance to corrosion and oxidizing environments. The material performs well in sulfuric acids, hydrochloric acid, and other acidic solutions. Additionally, the electrodes offer excellent resistance to pitting and crevice corrosion, making them suitable for harsh marine environments.

HASTELLOY® 182 Welding Electrodes Heat Treatment

HASTELLOY® 182 electrodes do not require any specific heat treatment after welding, and their mechanical properties remain stable even after high-temperature exposures. However, the electrodes can be annealed between 1100-1200°C (2010-2190°F) for one hour to improve their toughness and ductility.

Conclusion

HASTELLOY® 182 coated electrodes are a reliable and durable material for welding dissimilar metals, fabricating critical components, and operating in harsh industrial environments. The material’s unique composition, properties, and resistance to corrosion make it the perfect choice for aerospace, chemical processing, oil and gas, and energy industries. Don’t hesitate to use HASTELLOY® 182 coated electrodes in your next project to ensure the utmost reliability and durability.

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