ThePipingMart Blog Welding Electrodes HASTELLOY® C-86 Welding Wire – Composition, Properties, and Uses

HASTELLOY® C-86 Welding Wire – Composition, Properties, and Uses


HASTELLOY® C-86 is a popular nickel-chromium-molybdenum alloy known for its outstanding resistance to corrosion, high-temperature strength, and excellent oxidation resistance. It is widely used in various industries, including chemical processing, pollution control, paper production, and power generation. In this blog post, we will dive into the details of HASTELLOY® C-86, its composition, mechanical and physical properties, uses, corrosion resistance, and heat treatment.

What is HASTELLOY® C-86?

HASTELLOY® C-86 is a high-performance nickel-chromium alloy designed for superior corrosion resistance in harsh environments. This material combines excellent resistance to localized corrosion, such as pitting and crevice corrosion, with higher strength than other alloys, allowing applications even in high temperature and pressure conditions. HASTELLOY® C-86 also has exceptional weldability compared to other alloys of similar composition, making it an ideal choice for many components requiring welding or joining methods. Furthermore, this alloy can be machined easily, making it highly desirable to engineers and technicians who need particular pieces to meet their needs.

HASTELLOY® C-86 Welding Wire Composition

The HASTELLOY® C-86 electrode comprises nickel, chromium, molybdenum, iron, carbon, and cobalt. It has a high percentage of nickel and molybdenum with smaller amounts of chromium and iron, giving it outstanding properties.

Nickel: Balance
Chromium: 19.0-23.0
Iron: 5.0 max.
Molybdenum: 15.0-17.0
Copper: 0.5 max.
Titanium: 0.25 max.
Manganese: 1.0 max.
Tungsten: 3.0-4.4
Silicon: 0.08 max.
Other: 0.50 max.
Aluminum: 0.50 max.
Sulfur: 0.02 max.
Phosphorus: 0.02 max.
Carbon: 0.01 max.

HASTELLOY® C-86 Coated Wire Mechanical Properties

HASTELLOY® C-86 welding alloy has high tensile strength, good flexibility, and excellent toughness. It can withstand high temperatures and pressures and is resistant to thermal fatigue. The alloy also has good weldability, making it easier to fabricate and assemble.

Tensile (psi) 110,000
Mpa 760
Elongation (%) 30

HASTELLOY® C-86 Welding Wire Physical Properties

The density of HASTELLOY® C-86 welding metal is 8.25g/cm3, which means it is relatively light for its strength and resistance properties. The alloy has a specific heat capacity of 444 J/kg K, similar to that of stainless steel. HASTELLOY® C-86 is a non-magnetic alloy that does not respond to magnetic fields.

HASTELLOY® C-86 Welding Wire Trade Names

Class UNS Haynes
ERNiCrMo-14 N06686 HASTELLOY® C-86

HASTELLOY® C-86 Coated Wire Uses

HASTELLOY® C-86 welding wire is used in various industries, including chemical processing, pollution control, paper production, and power generation. It is particularly useful in producing sulfuric, nitric, and phosphoric acids. Also, it is utilized in heat exchangers, reactors, piping systems, and valves, among others.

HASTELLOY® C-86 Welding Wire Corrosion Resistance

HASTELLOY® C-86 filler meta has excellent corrosion resistance in harsh environments, including harsh chemical conditions and high temperatures. It is particularly resistant to sulfuric acid corrosion, making it a top choice for this corrosive chemical application.

HASTELLOY® C-86 Coated Wire Heat Treatment

HASTELLOY® C-86 filler wire can be heat-treated to achieve specific properties. The recommended heat treatment is the annealing of the alloy at temperatures of 1165-1205°C for 10 to 30 minutes. This process increases the alloy’s ductility and toughness while relieving internal stress from processing and fabrication.


HASTELLOY® C-86 is a high-performance nickel alloy widely used in various industries. Its composition, mechanical and physical properties, uses, and corrosion resistance makes it a top choice for many applications. The alloy is also heat-treatable, making it easier to achieve desired properties. Working with reputable suppliers and manufacturers of HASTELLOY® C-86 is essential to ensure the alloy’s quality, reliability, and safety.

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