UNS N06059 Corrosion-Resisting Superalloy Bars and Plates
This high-molybdenum nickel-based austenitic corrosion-resistant alloy offers outstanding resistance to strongly oxidizing acids, reducing acids and mixed acids, as well as chloride-induced pitting and crevice corrosion. Designed with ultra-low carbon to avoid carbide precipitation, it features excellent weldability, stable hot and cold formability, superior resistance to intergranular corrosion and chloride stress corrosion cracking, making it suitable for pressure-bearing equipment under severe corrosive media and harsh corrosion conditions in fine chemical industry.
Applications of UNS N06059
Widely applied in mixed nitric acid reaction vessels, hydrometallurgical leaching equipment, core heat exchangers for flue gas desulfurization, anti-corrosion units for high-purity chemicals and high-chloride seawater chemical heat exchange devices, acting as a dedicated pressure-bearing alloy for composite corrosive environments with strong oxidizing and reducing properties.
Equivalent Grades and Commonly Used Specifications of UNS N06059
| Steel Grade | Specification | Specification Name |
| NS3311 | GB/T 15007 | Designations of corrosion-resistant alloy |
| UNS N06059 | ASTM B564 | Standard Specification for Nickel Alloy Forgings |
| ASTM B574 | Standard Specification for Low-Carbon Ni-Cr-Mo, Low-Carbon Ni-Mo-Cr, Low-Carbon Ni-Mo-Cr-Ta, Low-Carbon Ni-Cr-Mo-Cu, and Low-Carbon Ni-Cr-Mo-W Alloy Rod and Bar | |
| ASTM B575 | Standard Specification for Low-Carbon Ni-Cr-Mo, Low-Carbon Ni-Cr-Mo-Cu, Low-Carbon Ni-Cr-Mo-Ta, Low-Carbon Ni-Cr-Mo-W, and Low-Carbon Ni-Mo-Cr Alloy Plate, Sheet, and Strip | |
| ASTM B619 | Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe | |
| ASTM B622 | Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube | |
| ASTM B366 | Standard Specification for Factory-Made Wrought Nickel and Nickel Alloy Fittings | |
| ASTM B462 | Standard Specification for Forged or Rolled Nickel Alloy Pipe Flanges, Forged Fittings, and Valves and Parts for Corrosive Service | |
| Products produced as per other specifications or technical agreements (if need) are available. | ||
Typical Chemical Composition of UNS N06059
|
Elements |
C | Cr | P | S | Si | Ni | Mn | Mo | Cu | Co | Fe |
Al |
|
Mass Fraction% |
≤0.010 | 22.00~24.00 | ≤0.015 | ≤0.010 | ≤0.10 | Balance | ≤0.50 | 15.00~16.50 | ≤0.50 | ≤0.30 | ≤1.50 |
0.10~0.40 |
| Products produced as per other specifications or technical agreements (if need) are available. | ||||||||||||
Typical Heat Treatment Condition and Mechanical Properties of UNS N06059
|
Delivery Condition |
Mechanical Properties and Hardness of Heat-Treated Specimens | ||||||
| Rp0.2/(N/mm2) | Rm/(N/mm2) | A/% | Zb/% | Aku2d/J | HBR |
HRC |
|
|
Solution Annealed Condition |
≥310 | ≥690 | ≥45 | / | / | ≤100 |
/ |
| Products produced as per other specifications or technical agreements (if need) are available. | |||||||
Product Forms and Size Range of UNS N06059
|
Product forms |
Size range |
|
Bars |
Diameter or side length: 5.0mm~1000mm |
| Flats |
thickness: 4.0mm~1000mm width: 300mm~2200mm |
| Produce as other form and size according to technical requirements are available. | |






