Haynes® 214 is an austenitic cobalt-chromium-nickel alloy known for its extreme temperature resistance. It has many applications, from spacecraft components to medical implants to industrial furnace parts. Let’s take a closer look at this versatile alloy’s composition, properties, uses, and corrosion resistance.
Haynes 214 Composition
Haynes® 214 is made up of nickel (55%), cobalt (22%), chromium (20%), molybdenum (2.25%), tungsten (0.75%) and iron (0.50%). The chromium content helps it resist oxidation at higher temperatures, while the molybdenum increases its strength without sacrificing flexibility or toughness. These elements make Haynes® 214 an ideal choice for high-temperature applications.
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Aluminum, Al | 4.5 % | 4.5 % | |
| Boron, B | <= 0.010 % | <= 0.010 % | |
| Carbon, C | 0.050 % | 0.050 % | |
| Chromium, Cr | 16 % | 16 % | |
| Iron, Fe | 3.0 % | 3.0 % | |
| Manganese, Mn | <= 0.50 % | <= 0.50 % | |
| Nickel, Ni | 75 % | 75 % | |
| Silicon, Si | <= 0.20 % | <= 0.20 % | |
| Yttrium, Y | 0.010 % | 0.010 % | |
| Zirconium, Zr | <= 0.10 % | <= 0.10 % |
Haynes 214 Mechanical Properties
The mechanical properties of Haynes 214 include a tensile strength range from 90 ksi to 120 ksi and elongation values ranging from 12% to 20%.
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <1200 N/mm² | <174 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +1100 °C | -330 to +2010 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1300 – 1700 N/mm² | 189 – 247 ksi |
| Approx. operating temperature depending on load** and environment | -200 to +1100 °C | -330 to +2010 °F |
Haynes 214 Physical Properties
Alloy 214 physical properties include a 0.293 lb/in³ density and a melting point between 2200°F – 2350°F. These properties give it excellent thermal fatigue resistance, making it suitable for use in aerospace components exposed to extreme temperature fluctuations during flight.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 8.05 g/cc | 0.291 lb/in³ | at RT |
Haynes 214 Uses
Due to grade 214’s high-temperature resistance and ability to maintain form when exposed to rapid temperature changes, Haynes®214 can be used in many different industries, including aerospace, automotive, energy production, and medical implant manufacturing.
Haynes 214 Equivalent
- W.NR 2.4646
- UNS N07214
- AWS 061
Corrosion Resistance
Alloy 214 offers good corrosion resistance in many environments, including hot sulfuric acid solutions up to 550°F as well as oxidizing acids such as nitric acid at room temperature.
Conclusion:
In summary, Haynes®214 is an austenitic cobalt-chromium-nickel alloy with exceptional mechanical properties and corrosion resistance. It suits many industries requiring high-temperature performance, such as aerospace components or industrial furnaces. Its unique composition gives it outstanding thermal fatigue resistance, making it the perfect choice for applications requiring extreme temperatures or rapid fluctuations between hot and cold temperatures. This alloy offers great flexibility, making it one of the most reliable materials available on the market today!
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
