Nickel alloy Alloy 59 – properties, applications and technical data
Alloy 59 is a high-alloy nickel-chromium-molybdenum alloy developed for extreme corrosion resistance in very aggressive chemical environments.
The alloy has very low carbon and silicon content, which minimizes the risk of intercrystalline corrosion and improves the material's performance in oxidizing and reducing environments.
Alloy 59 is often used in the chemical process industry, environmental technology and power generation where components are exposed to very aggressive acids, chlorides and high temperatures.
Properties of Alloy 59
Alloy 59 is a nickel-based alloy with high chromium and molybdenum contents that provides excellent resistance to pitting corrosion, crevice corrosion and stress corrosion cracking.
The alloy offers very good stability in both oxidizing and reducing environments. chemical environments and is often used where other corrosion-resistant alloys are not sufficient.
- Type: nickel-based corrosion-resistant alloy
- Alloy: Ni-Cr-Mo
- Structure: austenitic nickel-based alloy
- Designations: Alloy 59, UNS N06059, W.Nr. 2.4605
- Typical composition: Ni ~balance, Cr ~23%, Mo ~16%
Advantages
- Extreme corrosion resistance in aggressive acids
- Very good resistance to pitting and crevice corrosion
- Good resistance to chloride-induced stress corrosion cracking
- Stable structure due to low carbon and silicon content
- Good weldability
Limitations
- Higher material cost than standard alloys
- Not optimized for very high temperatures in structural applications
- Machining can be more demanding than stainless steel
Common product forms for Alloy 59
- Round bar
- Sheet and strip
- Tubes and tubes
- Forgings
- Special dimensions according to drawing
Typical components manufactured in Alloy 59
- Heat exchangers
- Reactors and process vessels
- Pipe systems in the chemical industry
- Environmental engineering equipment
- Components in exhaust gas purification systems
Corrosion resistance
Alloy 59 offers very high resistance to both oxidizing and reducing acids and very good resistance to chlorides.
The alloy is often used in applications where both pitting and stress corrosion cracking are critical factors.
Environments where Alloy 59 performs well
- Chemical process industry
- Environmental engineering and flue gas cleaning
- Petrochemical plants
- Waste management and acid treatment
Environments to avoid
- Applications where simpler nickel or stainless alloys are sufficient
- Environments where high temperature strength is more important than corrosion resistance
Technical data
| Yield strength (0.2%) |
~350 MPa |
| Tensile strength |
~690 MPa |
| Elongation |
~40 % |
| Density |
~8.6 g/cm³ |
| Modulus of elasticity |
~205 GPa |
| Maximum working temperature |
~650 °C depending on application |
With a global network of suppliers, we can offer Alloy 59 in technical dimensions for demanding chemical and industrial applications.
Contact us for price, availability and technical advice.
Supplier of Alloy 59 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys, including corrosion-resistant nickel-based alloys such as Alloy 59.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Special alloys from stock
- ASTM / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
