Incoloy926 bolt

Similar grades

	UNS	Trademark	W.Nr
Mo6CuN	N08926	Incoloy926	1.4529

 

Chemical composition of Incoloy926 bolts:

Alloy	%	Ni	Cr	Fe	C	Mn	Si	Cu	Mo	N	Ti	P	S
Incoloy926	Min	24	19	Balance				0.5	6.0	0.15	0.6
	Max	26	21		0.02	2.0	0.5	1.5	7.0	0.25	1.2	0.03	0.01

 

Physical properties of Incoloy926 bolts:

density	8.1g/cm³
melting point	1320~13909C

 

The minimum mechanical properties of Incoloy926 bolt alloy at room temperature:

Status	tensile strength Rm N/mm2	Yield Strength RP0.2 N/mm2	Elongation A5%
Incoloy926	650	295	35

 

Incoloy926 bolts have the following characteristics

1. It has high resistance to pitting corrosion and crevice corrosion in halide media and acidic media containing H2S. 2. It can effectively resist ammonia ion stress corrosion cracking in practical applications.
2. Excellent resistance to various corrosions in normal oxidation and reduction environments 4. Mechanical properties are greatly improved compared to Cronifer 1925 LC-Alloy 904L 5. Compared with the metallurgy of the same series of alloys with 18% nickel content Stability has been greatly improved
3. Has relevant certifications for pressure vessel manufacturing (VdTUV-196~400°C and ASME certification)

 

The metallographic structure of Incoloy926 bolts:

926 is a face-centered cubic lattice structure.

Corrosion resistance of Incoloy926 bolts:

926 is an austenitic stainless steel with a similar chemical composition to Alloy 904L. Its gas content is increased to about 0.2%, and its molybdenum content is about 6.5%. The increase in ammonia and molybdenum content significantly improves the resistance to pitting and crevice corrosion in halide media. At the same time, nickel and nitrogen not only ensure the stability of the metallographic phase, but also reduce the tendency of intergranular phase precipitation during hot processing or welding than alloys with lower nickel and nitrogen content. Excellent localized corrosion resistance coupled with a nickel content of 25% gives Alloy 926 particularly outstanding corrosion resistance in ammonia ion media. Tests in various FGD systems of limestone slurries with ammonia concentration of 10000-70000 ppm, pH value of 5-6, and operating temperature of 50-68°C showed that after a test period of 1-2 years, alloy 926 basically had no occurrence points. Corrosion and crevice corrosion. Alloy 926 also has good corrosion resistance in other chemical media, as well as high temperature and high concentration media, including sulfuric acid, phosphoric acid, acid gas, seawater, salt and organic acids. Alloy 926 is the material of choice for Chapter 6 “Specifications for Storage and Transportation Containers of Dangerous Goods” of the German National Institute for Materials Research and Testing (BAM) in Berlin. In addition, the best corrosion resistance can only be achieved when the material is in the correct metallurgical condition and ensures cleanliness.

 

Incoloy926 bolt application scope:

Alloy 926 is a versatile material with applications in many industrial areas:

1. Fire protection systems, seawater purification systems, hydraulic and perfusion pipeline systems in marine engineering
2. Bleaching tanks in cellulose pulp production
3. Polished rods in corrosive oil wells
4. Hose systems in marine engineering
5. Pipelines, joints, gas flow systems, etc. in acid gas production
6. Components in flue gas desulfurization system
7. Evaporators, heat exchangers, filters, mixers, etc. in phosphoric acid production
8. Sulfuric acid separation and condensation system
9. Evaporator for concentrating and crystallizing salt
10. Condensation and piping systems in power plants using sewage cooling water
11. Containers for transporting corrosive chemicals
12. Production of organic derivatives using acidic chloride catalysts
13. Reverse osmosis desalination plant