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HAYNES® 200 Welding Wire – Composition, Properties, and Uses


HAYNES® 200 is a high-temperature alloy with a special place in manufacturing. It is often used in applications that require high-strength, good resistance to high-temperature environments, and reliable performance. In this blog post, we will explore the properties of HAYNES® 200, its mechanical and physical properties, uses, corrosion resistance, heat treatment, and benefits.

What is HAYNES® 200 Welding Wire?

HAYNES® 200 is a patented alloy developed by Haynes International, Inc. It holds the title of being the premier high-temperature alloy currently on the market. This nickel-chromium-tungsten alloy offers superior strength and toughness with excellent oxidation resistance up to 2093°F (1150°C). As it stands out amongst competitors due to its superior temperature stability, this titanium-based metal has proven itself in aerospace, nuclear energy, and oil & gas production. Additionally, HAYNES® 200 can be used for applications like turbocharger blades and turbine housings that require exceptional performance in extreme temperatures while remaining reliable during continuous use.

HAYNES® 200 Welding Wire Composition

HAYNES® 200 welding wire is a nickel-based alloy comprising 99.96% nickel, 0.2% iron, 0.02% carbon, and 0.10% and 0.05% copper and manganese, respectively. This high nickel content gives HAYNES® 200 the ability to withstand high temperatures while maintaining its shape and structural integrity. It also has excellent resistance to oxidation and corrosion, making it ideal for use in severe environments where other materials may fail.

Nickel: 99.0 min.
Iron: 0.40 max.
Copper: 0.25 max.
Manganese 0.35 max.
Silicon: 0.35 max.
Sulfur: 0.01 max.
Carbon: 0.015 max.
Other: 1.00 max.

HAYNES® 200 Coated Wire Mechanical Properties

HAYNES® 200 welding alloy mechanical properties are exceptional, with a tensile strength of up to 1000 MPa at room temperature. This strength makes it suitable for use in applications that require high strength, such as gas turbine engines, aerospace components, and nuclear reactors. HAYNES® 200 also maintains its tensile strength at elevated temperatures, with a maximum operating temperature of up to 1149℃.

Tensile (psi) 71,000
Mpa 490
Elongation (%) 12

HAYNES® 200 Welding Wire Physical Properties

Regarding physical properties, HAYNES® 200 welding electrode has a density of 8.4 g/cm³, making it lightweight and easy to use. It is non-magnetic, an added advantage in applications involving high magnetic fields. Additionally, it has good thermal conductivity, electrical conductivity, and low-temperature coefficient of expansion.

HAYNES® 200 Coated Wire Trade Names

Class UNS Haynes
ERNi-Cl N02215 HAYNES® 200

HAYNES® 200 Welding Wire Uses

HAYNES® 200 filler wire uses span various industries, including aerospace, petrochemical, energy, and nuclear. Its high-temperature strength and resistance to oxidation and corrosion make it ideal for use in gas turbine engines, exhaust systems, heat exchangers, and nuclear reactors. It also manufactures electrical components, such as resistance wires, lamp filaments, and heating elements.

HAYNES® 200 Coated Wire Corrosion Resistance

HAYNES® 200 corrosion resistance is another standout feature. It has excellent resistance to a wide range of corrosive media such as sulfuric acid, phosphoric acid, and hydrofluoric acid, among others. It can also withstand pitting and crevice corrosion, making it ideal for use in harsh environments where corrosion is a major concern.

HAYNES® 200 Welding Wire Heat Treatment

HAYNES® 200 filler metal heat treatment involves various methods, depending on the desired application. Annealing is the most common heat treatment process, which involves heating the alloy to a temperature of up to 1177℃, followed by air-cooling or water quenching. This process helps restore the alloy’s mechanical properties, such as tensile strength and ductility.


HAYNES® 200 is a special alloy that is widely used in a range of applications. Its unique combination of mechanical and physical properties and excellent resistance to high temperatures and corrosion makes it an ideal choice for use in harsh environments where other materials may fail. For more information on HAYNES® 200 and its uses, contact a reputable supplier or manufacturer.

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