Alloy N08925 is a high strength, high corrosion resistance austenitic stainless steel also known as UNS N08925 or Incoloy 925. In this article, we will introduce the chemical composition, production standard, corrosion resistance, typical application range, processing and heat treatment, machining, welding and other information of N08925 alloy in detail.
1. Chemical composition
The chemical composition of N08925 alloy is as follows:
Element | Chemical composition (mass percentage)
– | –
Nickel (Ni) | 42.0-46.0%
Chromium (Cr) | 19.5-22.5%
Iron (Fe) | 22.0-24.5%
Molybdenum (Mo) | 2.5-3.5%
Copper (Cu) | 1.5-3.0%
Titanium (Ti) | 0.10-0.60%
Aluminum (Al) | 0.10-0.60%
Manganese (Mn) | ≤0.50%
Silicon (Si) | ≤0.50%
Carbon (C) | ≤0.03%
Phosphorus (P) | ≤0.030%
Sulfur (S) | ≤0.010%
Nitrogen (N) | ≤0.01%
2. Production standard
The production standards of N08925 alloy include the following aspects:
1. Chemical composition standard: The chemical composition of the alloy should meet the relevant standards and be prepared according to the customer’s requirements.
2. Mechanical performance standard: The mechanical performance of the alloy should meet the relevant standards, such as tensile strength, yield strength, elongation, impact toughness, etc.
3. Processing technology standard: The processing technology of the alloy should meet the relevant standards, including hot processing, cold processing, heat treatment, machining, welding, etc.
3. Corrosion resistance
N08925 alloy has excellent corrosion resistance, especially for corrosion and stress corrosion cracking in seawater environment. In addition, it also has good high temperature and oxidation resistance, and can maintain its performance in high and low temperature environments.
4. Typical application range
N08925 alloy is widely used in marine engineering, petrochemical, chemical, pharmaceutical, food processing and other fields. It is mainly used in the manufacture of seawater desalination equipment, marine engineering pipelines, chemical storage tanks, petrochemical equipment, pharmaceutical equipment, food processing equipment, etc.
5. Processing and heat treatment
The processing and heat treatment of N08925 alloy include the following aspects:
1. Thermal processing
N08925 alloy can be formed by hot working, including forging, rolling, extrusion, stretching, etc. During hot working, the processing temperature and deformation speed of the alloy should be well controlled to ensure the performance and quality of the alloy.
2. Cold working
N08925 alloy can be formed by cold working, including cold drawing, cold rolling, cold extrusion, etc. During the cold working process, attention should be paid to controlling the deformation speed and deformation amount of the alloy to ensure the performance and quality of the alloy.
3. Heat treatment
N08925 alloy can be heat treated, including annealing, solid solution and quenching. Among them, solution annealing can improve the toughness and machinability of the alloy, and quenching can improve the hardness and strength of the alloy. During the heat treatment process, attention should be paid to controlling the parameters such as the heating temperature, holding time and cooling rate of the alloy to ensure the performance and quality of the alloy.
4. Machining
N08925 alloy can be processed by machining, including drilling, milling, turning, cutting, etc. During the machining process, appropriate cutting tools, cutting parameters and cooling methods should be selected to ensure the processing quality and efficiency of the alloy.
5. Welding
N08925 alloy can be welded in various types, including arc welding, TIG welding, MIG/MAG welding, etc. During the welding process, the appropriate welding material and welding process should be selected according to the chemical composition of the alloy and the application requirements to ensure the quality and performance of the welded joint.
6. Recommended welding materials
Recommended N08925 alloy welding consumables include:
1. Welding wire: ERNiCrMo-3, ERNiMo-10, ERNiCrMo-13, etc.
2. Electrode: ENiCrMo-13, ENiMo-13, etc.
7. Available product range
The available product range of N08925 alloy includes plates, pipes, bars, wires, bolts, nuts, etc. Product specifications and sizes can be customized according to customer needs.
The above is an introduction to the definition, chemical composition, production standards, corrosion resistance, typical application range, processing and heat treatment, machining, welding, etc. of N08925 alloy.
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Post time: Aug-26-2023
