Alloy20 Steel Plate N08020 Alloy Plate 5-30mm Polished Solid Solution State

Product Specification

Alloy20 steel plate N08020 alloy plate surface polished solid solution state 5-30mm plate

‌N08020 is a high alloy corrosion resistant material, also known as alloy 20. ‌ It belongs to the nickel-iron-chromium austenitic alloy series, has excellent corrosion resistance, and is widely used in chemical industry, petrochemical industry, marine engineering, medical equipment and other fields. N08020 alloy is mainly composed of nickel, chromium, molybdenum, iron, tungsten and other metals. This alloy not only inherits the excellent corrosion resistance of nickel alloy, but also further improves its stability and durability in extreme environments through a unique alloying design. Its main chemical components include carbon, manganese, nickel, etc., and its mechanical properties such as tensile strength σb ≥ 550MPa. N08020 alloy is particularly suitable for occasions where it is necessary to resist corrosion by both oxidizing and reducing media, such as chemical industry, petroleum refining, marine engineering and nuclear power generation. In addition, N08020 alloy has excellent resistance to overall corrosion, pitting and crevice corrosion against chemicals containing chlorides and sulfuric acid, phosphoric acid, nitric acid, etc., and has extremely high corrosion resistance to sulfuric acid. Its application areas are wide, including chemical, food, pharmaceutical and plastic industries, heat exchangers, mixing tanks, pickling equipment, synthetic rubber production equipment, pumps, valves and pipes, etc. ‌

The main chemical components of N08020 alloy include:

Nickel (Ni): 32.0-38.0%
Chromium (Cr): 19.0-21.0%
Copper (Cu): 3.0-4.0%
Molybdenum (Mo): 2.0-3.0%
Iron (Fe): Balance
Carbon (C): ≤0.07%
Manganese (Mn): ≤2.0%
Silicon (Si): ≤1.0%
Phosphorus (P): ≤0.045%
Sulfur (S): ≤0.035%
Niobium (Nb): ≤1.0%

 N08020, also known as Alloy 20 or Carpenter 204047, is a specially designed nickel-chromium-iron alloy belonging to the nickel-iron-chromium austenitic alloy family. It is known for its excellent corrosion resistance, stress corrosion cracking resistance and good mechanical properties, especially under high temperature and high pressure working conditions.

‌ Physical Properties‌: Density is about 8.75 g/cm³, melting point is about 1300-1350°C.

These components make N08020 alloy have excellent corrosion resistance and high temperature performance, and are widely used in chemical, petroleum, natural gas, food processing and marine engineering.

Performance characteristics

High temperature resistance:

It can maintain stable mechanical and chemical properties at high temperatures, and the maximum operating temperature can reach 600℃. It is widely used in high temperature environments such as chemical, petroleum, aerospace and other fields. It has excellent high temperature resistance and oxidation resistance, and can withstand harsh working environments under high temperature and high pressure conditions. It can withstand extremely high temperatures and pressures and maintain stable performance. For example, it is used in the aerospace field for the manufacture of high-temperature components such as jet engines, turbine blades, and combustion chambers. In the petrochemical industry, it is used to manufacture chemical reactors, petroleum cracking heaters, high-temperature pipelines and other equipment.

Alkaline corrosion resistance:

It can withstand corrosion from alkaline media such as sodium hydroxide and potassium hydroxide.

Other corrosion resistance:

It can also withstand corrosion in a variety of complex environments such as seawater and salt spray. It has good resistance to marine water corrosion in the field of marine engineering. It is suitable for the manufacture of marine mining equipment and submarine pipelines. The chromium element in its microstructure can form an oxide film to prevent further corrosion, and the nickel element can also enhance corrosion resistance.

Mechanical properties:

It has high mechanical strength, plasticity, and toughness. It has high strength and hardness, can withstand certain pressure and wear, and has good plasticity and toughness. It can maintain stable performance when subjected to large stress and strain, and can further optimize the microstructure during heat treatment to improve mechanical properties. It also has excellent resistance to stress corrosion cracking, has good mechanical properties under high temperature and high pressure conditions, and can maintain high machinability and good formability within a large stress range.

Acid corrosion resistance:

It exhibits excellent corrosion resistance in acidic media such as sulfuric acid, nitrates, and hydrofluoric acid, and has first-class stability in strong corrosive media such as nitric acid and sulfuric acid. It is especially suitable for equipment that produces and stores strong corrosive media such as concentrated sulfuric acid, sulfates, and fluorides. It can be used to manufacture equipment parts that work in strong acid environments, such as equipment for refining, storing, and treating acidic media in the petrochemical field, and equipment for producing and storing strong corrosive media in the fields of pharmaceuticals and food processing.

Processing performance:

It has good cold processing performance and hot processing performance. It can prepare parts of various shapes through forging, hot rolling, cold rolling, cold heading and other processing methods. It can be processed and formed by heat treatment and cold processing. It is also easy to perform mechanical processing and cold forming. However, appropriate preheating and cooling measures need to be taken during the processing to avoid affecting its performance. When welding, corresponding welding materials and processes need to be used to ensure the quality of the weld.