Description
Incoloy 926 Alloy is kind of austenitic stainless steel alloy and similar with 904 L alloy. Incoloy 926 alloy has 0.2% nitrogen and 6.5% molybdenum content which makes it be good at crevice corrosion resistance.
Feature
Meanwhile, nickel and nitrogen content can not only help Incoloy 925 to improve the stability, and also can reduce the tendency to separate the crystallization thermal process or welding process is superior to the nitrogen content of nickel alloy.
Indoloy 926 alloy has certain corrosion resistance in chloride ions because of local corrosion properties and 25% nickel content. Incoloy 926 alloy has no crevice corrosion and pitting corrosion during the trial period of 1-2 years under ph5-6.5 and 68℃’ environment. And in other chemical medias Incoloy 926 also have good corrosion resistance(high temperature& high concentrations of medias including sulfuric acid, phosphoric acid, acid gas, sea water, salt and organic acids).
Application
Incoloy 926 Alloy has has high crevice corrosion resistance points and can be used in media containing acid. When in practice Incoloy 926 also has good performance in resistance to chloride stress corrosion cracking. Besides, in order to obtain the best corrosion resistance of Incoloy 926 alloy, regular cleaning should be taken.
Incoloy 926 Chemical composition:
Alloy | % | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | N | Ti | P | S |
926 | Min. | 24 | 19 | Balance | 0.5 | 6.0 | 0.15 | 0.6 | |||||
Max. | 26 | 21 | 0.02 | 2 | 0.5 | 1.5 | 7.0 | 0.25 | 1.2 | 0.03 | 0.01 |
Incoloy 926 Physical properties:
| Density | 8.1 g/cm3 |
| Melting point |
| 1320-1390 ℃ |
Incoloy 926 Alloy Minimum Mechanical properties in the room temperature:
Alloy state | Tensile strength Rm N/mm2 | Yield strength RP0.2N/mm2 | Elongation A5 % |
926 | 650 | 295 | 35 |
Incoloy 926 Characteristic：
1.It has high resistance to pitting and crevice corrosion when in Halide and H2S contained acid media.
3.A variety of corrosion have good corrosion resistance capability in the normal oxidation and restore environment.
4.Upgrade mechanical properties than Cronifer 1925 LC-Alloy 904 L.
5. Alloys has Improved the stability of metallurgical compared to a range of 18% of the nickel content alloys.
6.With a certification of applied in manufacturing-related pressure vessel （VdTUV-196～400℃ and ASME ）
Metallurgical structure
926 is face-centered cubic lattice structure.
Corrosion resistance
926 is an austenitic stainless steel alloy has a similar chemical composition with 904L alloy, its nitrogen content is 0.2%, molybdenum content is 6.5%. Molybdenum and nitrogen content significantly increased the resistance of pitting and crevice corrosion in the halide media.
Meantime, nickel and nitrogen not only ensures the stability of metallographical, but also reduce separating intergranular trend in the thermal process or welding process better than the nitrogen content of nickel alloy.
926 has particular corrosion resistance in the chloride ions medium due to the excellent local corrosion resistance and 25% nickel alloy content.
A variety of experiments in the 10000-70000ppm of Chloride concentration, PH 5-6, 50-68℃ operating temperature of the slurry of limestone FGD system show that, after a 1-2 year trial period, 926 alloy without pitting and crevice corrosion.
926 in other chemical media also has good corrosion resistance in the high temperature and high concentration of media, including sulfuric acid, phosphoric acid, acid gas, sea water, salt and organic acids.
926 is the material that choosed for BAM directory Chapter 6 of “dangerous goods storage and transportation containers norms” by Berlin, Germany’s national Institute for Materials Research and Testing (BAM) .
In addition, in order to have the best corrosion resistance only when the material is in the right state of metallurgy and guarantee clean conditions.
Application field：
Alloy 926 is a multipurpose material can be applied in many industrial:
1. Fire system, water purification system, marine engineering and hydraulic piping perfusion system.
2. The pipeline, joint, air systems in the acidic gas production.
3. Evaporator, the heat exchanger, filter, mixer, etc. in the phosphate production.
4.Power plants condensation and pipe system in the use of sewage water to cool water.
5. The use of acidic organic catalyst chlorinated derivatives production.
6. The production of cellulose pulp bleacher.
7. Polished bar in the orrosive oil wells.
8. Hose system in the ocean engineering.
9. Flue gas desulphurization system components.
10. Sulfuric acid condensation and separation system.
11. Crystalline salt concentration and the evaporator.
12. Transport of corrosive chemicals containers.
13. Reverse osmosis desalination plant.
Similar products: INCOLOY 800H/HT INCOLOY 825
