| Application: | Industrial |
|---|---|
| Standard: | GB, ASTM |
| Purity: | >99.5% |
| Alloy: | Alloy |
| Powder: | Not Powder |
| Transport Package: | Wooden |
| Customization: |
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Audited Supplier Alloy926 stainless steel
A nickel-based alloy containing titanium and aluminum
The Cr content in Alloy926 (1.4529, N08926) super austenitic stainless steel is usually 14.0-18.0%, and the nickel content is 24.0-26.0%. Alloy926 (1.4529, N08926) alloy is a nickel-based alloy containing titanium and aluminum, and contains enough chromium to form and maintain a sufficient scale of chromium oxide to be protected at high temperature conditions, more than traditional chromium-nickel stainless steels such as 304 High temperature resistance; higher nickel content makes it more resistant to oxidation than standard 18-8 stainless steel, and its oxidation resistance is not inferior to more High grade alloys.
The Cr content in Alloy926 (1.4529, N08926) super austenitic stainless steel is usually 14.0-18.0%, and the nickel content is 24.0-26.0%.
Alloy926 (1.4529, N08926) alloy is a nickel-based alloy containing titanium and aluminum, and contains enough chromium to form and maintain a sufficient scale of chromium oxide to be protected at high temperature conditions, more than traditional chromium-nickel stainless steels such as 304 High temperature resistance; higher nickel content makes it more resistant to oxidation than standard 18-8 stainless steel, and its oxidation resistance is not inferior to more High grade alloys.
1. Overview of Alloy926 (1.4529, N08926) super austenitic stainless steel:
2. Physical properties of Alloy926 (1.4529, N08926) super austenitic stainless steel:
1. Density of Alloy926 (1.4529, N08926) alloy nickel-based alloy: 8.1g/cm3,
2. Alloy926 (1.4529, N08926) alloy nickel-based alloy melting point: 1320-1390 ºC
3. The minimum value of the mechanical properties of Alloy926 (1.4529, N08926) alloy at room temperature:
(1) Tensile strength 650RmN/mm2,
(2) Yield strength 295RP0.2N/mm2,
(3) Elongation A5%: 35.
3. Main features of Alloy926 (1.4529, N08926) super austenitic stainless steel:
1. It has high resistance to pitting corrosion and crevice corrosion in halide media and acidic media containing H2S.
2. It can effectively resist chloride ion stress corrosion cracking in practical applications.
3. It has excellent corrosion resistance to various corrosion in the usual oxidizing and reducing environment.
4. The mechanical properties are greatly improved compared to Cronifer1925LC-Alloy904L.
5. Compared with the same series of alloys with a nickel content of 18%, the metallurgical stability is greatly improved.
6. Has the relevant certification for pressure vessel manufacturing (VdTUV-196~400ºC and ASME certification)
4. Application scope of Alloy926 (1.4529, N08926) super austenitic stainless steel Application fields:
Alloy926 (1.4529, N08926) alloy is a versatile material that can be used in many industrial fields:
1. Fire protection systems, seawater purification systems, hydraulic and perfusion piping systems in marine engineering.
2. Bleaching tank in cellulose pulp production.
3. Polished bars in corrosive oil wells.
4. Hose system in marine engineering.
5. Pipelines, joints, gas flow systems, etc. in acid gas production.
6. Components in the flue gas desulfurization system.
7. Evaporators, heat exchangers, filters, mixers, etc. in phosphoric acid production.
8. Sulfuric acid separation and condensation system.
5. Processing and heat treatment of Alloy926 (1.4529, N08926) super austenitic stainless steel:
It is suitable for cold and hot processing and machining, but due to its high strength, high-power processing equipment is required for cold and hot processing.
1. Heating of Alloy926 (1.4529, N08926) alloy:
(1) The workpiece should always be kept clean before and during the heat treatment.
(2) Do not contact sulfur, phosphorus, lead and other low melting point metals during the heat treatment process, otherwise it will damage the performance of the material. Attention should be paid to removing dirt such as marking paint, temperature indicating paint, colored crayons, lubricating oil, fuel and so on.
(3) The lower the sulfur content in the fuel, the better. The sulfur content in natural gas should be less than 0.1%, and the sulfur content in heavy oil should be less than 0.5%.
(4) Considering the needs of temperature control and keeping clean, it is best to perform heat treatment in a vacuum furnace or a gas shielded furnace.
(5) It can also be heated in a box furnace or a gas furnace, but the furnace gas must be clean and neutral to slightly oxidizing. The fluctuation of the furnace gas between oxidizing and reducing properties should be avoided, and the heating flame cannot be directly Burn to the workpiece.
2. Hot working of Alloy926 (1.4529, N08926) alloy:
(1) The hot working temperature range of Alloy926 (1.4529, N08926) alloy is 1200ºC~900ºC, and the cooling method is water quenching or rapid air cooling.
(2) When heating, the material can be directly sent to the furnace that has been heated to the highest working temperature, and after sufficient heat preservation time (60 minutes of heat preservation time per 100mm thickness), the furnace is quickly released, and the heat is carried out in the high temperature section of the specified temperature range. processing. When the material temperature drops below the thermal processing temperature, reheating is required. (3) In order to obtain the best performance, solution treatment should be carried out after hot working.
3. Cold working of Alloy926 (1.4529, N08926) alloy:
(1) Like all austenitic chromium-nickel stainless steels, Alloy926 (1.4529, N08926) alloy has a large work hardening rate, so it is necessary to select processing equipment. Cold-worked materials should be in solution heat-treated state, and intermediate annealing should be performed when the amount of cold work is large.
(2) If the amount of cold working is greater than 15%, the workpiece needs to be subjected to secondary solution treatment.
4. Heat treatment of Alloy926 (1.4529, N08926) alloy:
(1) The solution treatment temperature range of Alloy926 (1.4529, N08926) alloy is 1150ºC~1200ºC, and the most suitable temperature is 1170ºC.
(2) The cooling method of materials with thickness greater than 1.5mm is water quenching, and materials with thickness less than 1.5mm can also be cooled by rapid air cooling. If air cooling is used.
(3) During the heat treatment process, the material can be directly sent to the furnace that has been heated to the highest working temperature, and the workpiece must be kept clean.
5. Descale and pickling of Alloy926 (1.4529, N08926) alloy:
(1) The surface oxide of Alloy926 (1.4529, N08926) alloy has stronger adhesion to the welding slag around the weld than low-alloy stainless steel. It is recommended to use a fine-grained abrasive belt or a fine-grained grinding wheel for grinding.
(2) Before pickling with HNO3/HF mixed acid at appropriate time and temperature, the oxide film must be carefully polished or pretreated with salt bath to break up the oxide film.
6. Machining of Alloy926 (1.4529, N08926) alloy:
Alloy926 (1.4529, N08926) alloy should be machined after heat treatment. Due to the work hardening of the material, it is advisable to use a lower cutting speed and heavy feed than the low-alloy standard austenitic stainless steel for machining before it can be turned into cold work. Below the hardened surface layer.
6. Specification and supply status of Alloy926 (1.4529, N08926) alloy:
1. Variety classification: Alloy926 seamless pipe, Alloy926 steel plate, Alloy926 round steel, Alloy926 forging, Alloy926 flange, Alloy926 ring, Alloy926 welded pipe, Alloy926 steel strip, Alloy926 wire and Alloy926 supporting welding consumables.
2. Delivery status: seamless pipe: solid solution + acid white, the length can be fixed; plate: solid solution, pickling, trimming; welded pipe: solid solution acid white + RT% flaw detection, forgings: annealing + car polishing; Bars are forged and rolled, surface polished or polished; strips are delivered cold-rolled, solution-softened, and descaled; wire is solid-solution-pickled discs or straight strips, and solution-solution straight strips are finely ground Light state delivery.
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