Welding is essential in the automotive, aerospace, maritime, and construction industries. Therefore, having the right welding wire to produce strong and durable welds is crucial. HAYNES® 82 welding wire is one of the best quality wires available. It’s a nickel-chromium-molybdenum alloy designed for welding and repairing heat-resistant alloys. This blog post will look closer at HAYNES® 82 welding wire and understand its composition, mechanical and physical properties, uses, corrosion resistance, and heat treatment.
What is HAYNES® 82 Welding Wire?
HAYNES® 82 Welding Wire is an alloy wire of nickel, chromium, and molybdenum. It provides superior corrosion resistance and has higher strength levels than other alloys. This makes it ideal for welding in environments with high chloride-ion stress, such as seawater or chemical processing facilities. The HAYNES® 82 Welding Wire has excellent mechanical properties allowing it to be used in turbine components, chemical reactors, and exhaust systems due to its ability to maintain integrity under high temperatures and stresses. This product also offers superior weldability, which leads to less repair work compared to other alloy wires on the market today.
HAYNES® 82 Coated Wire Composition
HAYNES® 82 wire is a nickel-chromium-molybdenum alloy that contains approximately 20% chromium, 9% molybdenum, and 3% iron. Other elements present in smaller amounts include carbon, manganese, silicon, titanium, and aluminium. The composition ensures that HAYNES® 82 welding wire can withstand temperatures up to 2150°F (1180°C) and retain its strength and shape.
| Nickel: | 67.0 min. |
|---|---|
| Chromium: | 18.0-22.0 |
| Manganese: | 2.5-3.5 |
| Iron: | 3.0 max |
| Niobium: | 2.0-3.0 |
| Tantalum: | 0.30 max. |
| Titanium: | 0.75 max. |
| Silicon: | 0.50 max. |
| Copper: | 0.50 max |
| Other: | 0.50 max |
| Carbon: | 0.10 max. |
| Phosphorus: | 0.03 max. |
| Sulfur: | 0.03 max. |
| Cobalt: | 0.12 max.* |
HAYNES® 82 Coated Wire Mechanical Properties
HAYNES® 82 filler wire has impressive mechanical properties, which makes it an ideal choice for welding heat-resistant alloys. Its tensile strength is 105,000 psi, while its yield strength is 72,000 psi. Its elongation at break is 42%, and its hardness is 33 HRC.
| Tensile (psi) | 80,000 |
|---|---|
| Mpa | 552 |
| Elongation (%) | 30 |
HAYNES® 82 Welding Wire Physical Properties
The melting point of HAYNES® 82 electrode is 2,550°F (1,400°C), and its density is 0.320 lbs/cubic inch. Its electrical resistivity is 54.40 ohms-circ mil/ft @ 68°F (20°C), and its thermal expansion coefficient is 7.80 µin/in-°F (70°F) or 13.80 µm/m-°C (20°C).
HAYNES® 82 Coated Wire Trade Names
| Class | UNS | Haynes |
| ERNiCr-3 | N06082 | HAYNES® 82 |
HAYNES® 82 Welding Wire Uses
HAYNES® 82 welding electrode is commonly used for welding or repairing high-temperature alloys such as Inconel®, Hastelloy®, and other nickel-based alloys. It’s useful in applications involving gas turbine components, petrochemical processing, furnace components, and aerospace engines. It benefits applications requiring corrosion resistance, high-temperature stress, and oxidation.
HAYNES® 82 Coated Wire Corrosion Resistance
HAYNES® 82 alloy has excellent resistance to corrosion and oxidation. It has superior performance in high-temperature atmospheres containing sulfur and other corrosive agents. Its corrosion resistance is due to its high chromium and molybdenum content, which creates a protective layer that prevents corrosion.
HAYNES® 82 Welding Wire Heat Treatment
HAYNES® 82 welding wire can be heat treated using several methods like solution annealing, cooling, and stress relieving. Solution annealing is done by heating the wire to 2150°F (1180°C) and quenching it in cold water or air. This process improves the wire’s flexibility, toughness, and corrosion resistance. Stress relieving is done by heating the wire to 1550°F (840°C) and slowly cooling it. This process relieves any residual stresses from the wire.
Conclusion
In conclusion, HAYNES® 82 welding wire is a high-quality alloy with excellent mechanical and physical properties, making it ideal for welding and repairing heat-resistant alloys. Its high corrosion resistance and ability to withstand high temperatures make it useful in aerospace, petrochemical, and furnace components. Its heat treatment process also improves the wire’s ductility and corrosion resistance, making HAYNES® 82 welding wire a reliable and long-lasting welding solution.
Meet Heer, a dynamic and driven writer learning tricks of her trade in the metal industry. With a background in Digital Marketing, Heer brings a unique perspective to her writing, sharing valuable insights. Apart from blogging she like reading and hiking.
