N06625, also known as Inconel 625, is a nickel-based superalloy known for its excellent corrosion resistance, high temperature strength and good machinability, and is widely used in several key sectors such as aerospace, petrochemical, energy and nuclear industries.
N06625 Seamless steel pipe N06625 corrosion resistant alloy pipe
Main ingredients: carbon (C) 0.01 or less, manganese (Mn) of 0.50 or less, nickel (Ni) or greater 58, silicon (Si) of 0.50 or less, phosphorus (P) of 0.015 or less, sulfur (S) : 0.015 or less. Chromium (Cr) : 20.0~23.0, iron (Fe) : ≤5.0, aluminum: ≤0.4, titanium (TI)≤0.4. Niobium (Nb)3.15~4.15, cobalt (Co)≤1.0, molybdenum (Mo) 8.0~10.0
Physical properties:
625 alloy density: 8.44g/cm3, melting point: 1290-1350℃, magnetic: none
Mechanical properties:
Tensile strength: ≥758Mpa, yield strength: ≥379Mpa, elongation: ≥30%, hardness; HB150-220
### Unique physical properties
The reason why N06625 seamless steel pipe can maintain excellent performance in extreme environments is mainly due to its unique chemical composition and microstructure. The alloy is mainly composed of nickel (about 58%), chromium (about 20-23%), molybdenum (about 8-10%) and a small amount of iron, aluminum, titanium and other elements. This unique ratio enables Inconel 625 to maintain high strength and good oxidation resistance at high temperatures, while also showing high resistance to harsh environments such as chloride stress corrosion cracking, pitting and crevice corrosion. In addition, its good toughness and ductility also enable it to maintain structural integrity under various complex stress states.
A wide range of applications
1. ** Aerospace ** : In the aerospace sector, N06625 seamless steel pipes are used to manufacture engine components such as turbine discs, combustion chamber linings, nozzles and exhaust systems. These components need to withstand extremely high temperatures and pressures, as well as complex chemical environments, and Inconel 625 is the material of choice due to its excellent high temperature and corrosion resistance.
2. ** Petrochemical ** : In the petrochemical industry, the alloy seamless steel pipe is often used in the manufacture of heat exchangers, pipelines, valves and desalination equipment in refineries. These devices are exposed to corrosive media such as sour crude oil, seawater, etc., and the corrosion resistance of Inconel 625 ensures long-term stable operation of the equipment.
3. ** Energy industry ** : In the field of energy, especially nuclear power plants, N06625 seamless steel pipes are widely used in reactor cooling systems, steam generator pipes and nuclear fuel assemblies. Its good radiation resistance and high temperature strength are very important for the safe operation of nuclear power plants.
4. ** Marine Engineering ** : The Marine environment presents extremely high challenges to materials, including high salinity, high humidity, and strong tidal effects. N06625 seamless steel pipe because of its excellent resistance to seawater corrosion, become the ideal choice for Marine engineering structural parts such as offshore platform pillars, submarine pipelines, etc.
### Manufacturing process
N06625 seamless steel pipe manufacturing process is complex and fine, mainly including raw material preparation, melting, forging, hot rolling, cold rolling, heat treatment and testing and other links. Among them, the content and proportion of each element should be strictly controlled in the melting process to ensure the uniformity and stability of the alloy composition. Forging and hot rolling process by applying external force to plastic deformation of the material, improve its density and mechanical properties. Subsequent heat treatment processes, such as solution treatment and aging treatment, further optimize the microstructure of the alloy and improve its overall properties. Finally, through strict testing procedures, including chemical composition analysis, mechanical properties testing, metallographic structure inspection, etc., to ensure that each seamless steel pipe meets the standard requirements.
### Future outlook
With the progress of science and technology and the continuous development of industry, the requirements for material properties are becoming higher and higher. N06625 seamless steel pipe as a high-performance nickel-based superalloy, its application field will continue to expand. Especially in emerging fields such as new energy, deep-sea exploration, and extreme environment equipment manufacturing, Inconel 625 is expected to play a more important role. At the same time, with the in-depth research of material science and the continuous innovation of process technology, the performance of N06625 seamless steel pipe will also be further improved to meet the more stringent industrial needs.
In summary, N06625 seamless steel pipe with its excellent physical properties, a wide range of application fields, fine manufacturing process and broad development prospects, has become an indispensable material in modern industry. In the future, we have reason to believe that N06625 seamless steel pipe will continue to play an important role in promoting scientific and technological progress and industrial upgrading.
