Alloy N06059 (Alloy 59) — Premium Nickel-Chromium-Molybdenum Superalloy
Product Description
FUSHUN METAL’s Alloy N06059 is an advanced nickel-chromium-molybdenum superalloy with particularly low concentrations of carbon and silica, engineered for applications demanding exceptional corrosion resistance and high strength. This premium material delivers outstanding performance across diverse aggressive environments, making it the ideal choice for critical components in chemical processing, petrochemical, energy, and environmental applications where material integrity is essential.
Thanks to its optimal chemical composition, Alloy N06059 resists a multitude of corrosive media under both oxidizing and reducing conditions. The alloy exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-containing environments. Its superior performance in mineral acids, especially in sulfuric and hydrochloric acid mixtures, sets a new standard for corrosion-resistant alloys.
Key Advantages
- Exceptional resistance to a wide range of corrosive media under both oxidizing and reducing conditions
- Outstanding resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking
- Excellent performance in mineral acids including nitric, phosphoric, sulfuric, and hydrochloric acids
- Superior resistance to contaminated mineral acids
- Very good processing characteristics and weldability with minimal hot cracking tendency
- Highly resistant to sensitization during welding and thermal processing
- Approved for transport of hazardous goods by the German Federal Institute for Materials Research and Testing (BAM)
Standards and Specifications
Alloy N06059 meets or exceeds the following standards and specifications:
| Standard | Designation |
|---|---|
| UNS | N06059 |
| EN | 2.4605 |
| EN | NiCr23Mo16Al |
| ASTM/ASME | B574/B575/B564, SB574/SB575/SB564 |
| DIN | 17744/17750/17752 |
| VdTÜV | 505 |
| NACE | MR0175/ISO 15156 |
| API | 5LD |
Chemical Composition
FUSHUN METAL produces Alloy N06059 with precise control of chemical composition according to industry standards:
| Element | Min. % | Max. % |
|---|---|---|
| Nickel (Ni) | Balance | – |
| Chromium (Cr) | 22.0 | 24.0 |
| Molybdenum (Mo) | 15.0 | 16.5 |
| Iron (Fe) | – | 1.5 |
| Aluminum (Al) | 0.1 | 0.4 |
| Carbon (C) | – | 0.01 |
| Manganese (Mn) | – | 0.5 |
| Silicon (Si) | – | 0.1 |
| Sulfur (S) | – | 0.01 |
| Phosphorus (P) | – | 0.015 |
| Copper (Cu) | – | 0.5 |
| Cobalt (Co) | – | 0.3 |
Physical Properties
Alloy N06059 exhibits the following physical properties:
| Property | Value (Imperial) | Value (Metric) |
|---|---|---|
| Density | 537 lb/ft³ at 68°F | 8.6 g/cm³ at 20°C |
| Melting Range | 710-738°F | 1,310-1,360°C |
| Relative Magnetic Permeability at 20°C (68°F) | 1.001 | 1.001 |
| Thermal Conductivity at 68°F (20°C) | 6.01 BTU·in/sq.ft·h·°F | 10.4 W/m·K |
| Electrical Resistivity at 68°F (20°C) | – | 126 μΩ·cm |
| Modulus of Elasticity at 68°F (20°C) | 30.5 × 10⁶ psi | 210 GPa |
| Coefficient of Thermal Expansion (68-212°F/20-100°C) | 6.61 × 10⁻⁶/°F | 11.9 × 10⁻⁶/K |
Mechanical Properties
FUSHUN METAL’s Alloy N06059 offers excellent mechanical properties in the solution-annealed condition:
| Product Form | Dimensions | 0.2% Yield Strength | 1.0% Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| Sheet/Plate | 0.5-6.4 mm (0.0197-0.252″) | ≥ 340 MPa (≥ 49.3 ksi) | ≥ 380 MPa (≥ 55.1 ksi) | ≥ 690 MPa (≥ 100 ksi) | ≥ 40% |
| Sheet/Plate | 5-30 mm (0.197-1.18″) | ≥ 340 MPa (≥ 49.3 ksi) | ≥ 380 MPa (≥ 55.1 ksi) | ≥ 690 MPa (≥ 100 ksi) | ≥ 40% |
| Strip | 0.5-6.4 mm (0.0197-0.252″) | ≥ 340 MPa (≥ 49.3 ksi) | ≥ 380 MPa (≥ 55.1 ksi) | ≥ 690 MPa (≥ 100 ksi) | ≥ 40% |
| Bar | ≤ 100 mm (≤ 3.94″) | ≥ 340 MPa (≥ 49.3 ksi) | ≥ 380 MPa (≥ 55.1 ksi) | ≥ 690 MPa (≥ 100 ksi) | ≥ 40% |
Impact Toughness
Alloy N06059 exhibits exceptional impact toughness even at cryogenic temperatures:
- ISO-V notch impact energy: ≥ 160J at -196°C (-320°F)
- ISO-V impact strength: ≥ 200J/cm² at -196°C (-320°F)
Corrosion Resistance
Alloy N06059 demonstrates outstanding corrosion resistance in a wide range of aggressive environments, making it one of the most versatile corrosion-resistant alloys available:
Mineral Acids
- Excellent resistance to sulfuric acid across a wide concentration and temperature range
- Superior performance in hydrochloric acid compared to other Ni-Cr-Mo alloys
- Exceptional resistance to nitric and phosphoric acids
- Outstanding resistance to contaminated mineral acids
Localized Corrosion
- Exceptional resistance to pitting and crevice corrosion in chloride environments
- Superior resistance to stress corrosion cracking, even in hot chloride solutions
- Excellent resistance to intergranular corrosion due to low carbon and silicon content
Other Media
- High resistance to oxidizing and reducing environments
- Excellent performance in seawater and concentrated brines
- Superior resistance to flue gas condensates containing sulfuric and hydrochloric acids
The extremely low carbon and silicon concentrations prevent grain boundary precipitation during hot forming or welding, enhancing the alloy’s resistance to intergranular corrosion. The high nickel, chromium, and molybdenum content provides exceptional resistance to chloride ion attack in aggressive environments.
Applications
Due to its exceptional corrosion resistance and excellent mechanical properties, Alloy N06059 is ideally suited for numerous demanding applications:
Chemical and Petrochemical Industry
- Plant components for organic chemistry processes with chloride-containing media
- Components where catalytic systems on chloride basis are used
- Multi-purpose plants in the chemicals industry
- Equipment for active substance preparation and pharmaceutical production
- Reactors for acetic acids and acetic anhydrides
- Reactors for hydrofluoric acid
- Sulfuric acid coolers
Energy and Environmental Engineering
- Scrubbers, heat exchangers, flaps, ventilators, and agitators for flue gas desulfurization (FGD)
- Components for fossil fuel power plants and waste combustion plants
- SO₂-washers for ship diesel engines
- Equipment for geothermal energy and acid gas applications
- Tubes in geothermal power plants
Marine Applications
- Components for seawater and concentrated brine environments
- Offshore equipment exposed to marine environments
- Desalination plant components
Fabrication
Alloy N06059 can be fabricated using conventional techniques with proper consideration for its properties:
Hot Forming
The alloy should be hot-worked in a temperature range between 1,180 and 950°C (2,156-1,742°F) with subsequent rapid cooling in water or air. Heat treatment after hot forming is recommended for optimal corrosion behavior.
Cold Forming
The material has a higher work hardening rate than austenitic stainless steels, which must be considered when selecting forming tools and planning processes. Intermediate annealing is necessary for major cold forming operations, and final solution annealing is required after cold forming of > 15%.
Heat Treatment
Solution annealing should be conducted at temperatures between 1,100 and 1,180°C (2,012-2,156°F), preferably at 1,120°C (2,049°F). Cooling should be accelerated with water or air to achieve optimum corrosion properties.
Machining
Machining should be performed in the annealed condition. Due to the elevated work hardening rate, use lower cutting speeds and maintain continuous tool engagement. Adequate chip depth is important to cut below the previously formed strain-hardened zone.
Welding
Alloy N06059 demonstrates excellent weldability using conventional processes including TIG, MIG/MAG, plasma, and electron beam welding. The use of pulse techniques is recommended for shielding gas welding processes. Proper cleaning and low heat input are essential for optimal weld quality.
Available Product Forms
FUSHUN METAL provides Alloy N06059 in various product forms:
Sheet and Plate
- Cold rolled: 1-7 mm (0.039-0.275″) thickness
- Hot rolled: 3-55 mm (0.118-2.165″) thickness
- Widths up to 2,500 mm (98.42″)
- Lengths up to 12,500 mm (492″)
Strip
- Thickness range: 0.025-3 mm (0.001-0.118″)
- Width range: 4-750 mm (0.157-29.5″)
- Available in coils or cut lengths
Rod and Bar
- Diameter range: 6-800 mm (0.236-31.5″)
- Material specific dimensions: 8-450 mm (0.315-17.7″)
- Lengths: 1,500-12,000 mm (59.1-472″)
- Surface finish: forged, rolled, drawn, heat treated, oxidized, descaled, pickled, turned, peeled, ground or polished
Wire
- Drawn: 0.16-10 mm (0.006-0.04″)
- Hot rolled: 5.5-19 mm (0.22-0.75″)
Other forms such as discs, rings, seamless or longitudinally welded pipes, and forgings are available upon request.
Why Choose FUSHUN METAL for Alloy N06059
Selecting FUSHUN METAL as your supplier for Alloy N06059 provides numerous advantages:
- Premium Quality: Rigorous manufacturing controls and testing ensure consistent properties and performance
- Technical Expertise: Our metallurgists and engineers have extensive experience with nickel alloys and their applications
- Comprehensive Product Range: Available in various forms to meet diverse manufacturing requirements
- Custom Solutions: We can tailor products to meet your specific requirements
- Application Support: Expert assistance with material selection, fabrication recommendations, and corrosion guidance
- Global Supply: Worldwide distribution network ensures reliable delivery
Request Information
Contact FUSHUN METAL today to discuss your Alloy N06059 requirements. Our technical team is ready to assist you with:
- Material selection guidance
- Custom product specifications
- Fabrication recommendations
- Corrosion resistance evaluation
- Price quotations and delivery schedules
